Mst: Wishlist + Marketing Flow vs GP ‑ Wishlist & Upsell Suite: An In-Depth Comparison

Introduction

Choosing the right wishlist and re-engagement tools is a common challenge for Shopify merchants. A wishlist can capture buyer intent, trigger price-drop and back-in-stock alerts, and feed marketing channels — but not all wishlist apps are built the same. Merchants often face trade-offs between simplicity, advanced merchandising features, and the cost of stacking multiple single-purpose apps.

Short answer: Mst: Wishlist + Marketing flow is an excellent choice for merchants who need a low-cost, focused wishlist that supports unlimited items, guest wishlists, and basic price-drop/back-in-stock alerts. GP ‑ Wishlist & Upsell Suite is better suited for brands that want wishlist features plus built-in upsells, bundles, and volume discounts to increase average order value. For merchants who prefer fewer apps and a broader retention strategy, a unified platform like Growave often delivers better value for money by combining wishlist, loyalty, referrals, and reviews into one integrated system.

This post provides a detailed, feature-by-feature comparison of Mst: Wishlist + Marketing flow (Mascot Software Technologies Pvt. Ltd) and GP ‑ Wishlist & Upsell Suite (GroPulse). It helps merchants understand strengths, weaknesses, price implications, integrations, and ideal use cases — and then explains how an integrated solution can reduce tool sprawl and improve long-term retention.

Mst: Wishlist + Marketing flow vs. GP ‑ Wishlist & Upsell Suite: At a Glance

Deep Dive Comparison

This section compares the two apps across core merchant concerns: features, pricing and value, integrations, customization, analytics, support, and recommended use cases.

Features

Core Wishlist Functionality

Mst: Wishlist + Marketing flow focuses on wishlist fundamentals. The app supports multiple wishlists per user, unlimited items, guest wishlists, sharing, and a customizable "My Wishlist" page. It also advertises API and headless theme support, multi-language and multi-currency capabilities. These core features make it easy for merchants to capture and preserve shopper intent without imposing limits.

GP ‑ Wishlist & Upsell Suite provides standard wishlist behavior as well — save and share favorites, guest wishlist support, and reminders — but extends the wishlist into revenue-driving mechanics. It ties wishlist activity into automated reminders, price-drop and back-in-stock alerts, and also presents upsell opportunities based on saved items.

Practical takeaway: For straightforward wishlist capture and simple re-engagement, Mst provides a complete feature set. For merchants wanting wishlist activity to directly inform merchandising (e.g., push related upsells or bundle discounts), GP adds explicit functionality for that purpose.

Re-Engagement Tools: Alerts & Reminders

Both apps advertise price-drop and back-in-stock alerts. Mst explicitly lists email, SMS, and push notifications for these signals — and integration options with email/SMS providers (Klaviyo, Brevo, PushOwl). That enables merchants to design multi-channel flows tied to wishlists and recover potential sales.

GP includes automated reminder emails and back-in-stock alerts, plus analytics to measure reminder performance. Its approach ties reminders to upsell logic, enabling tailored messaging that references discounts, bundles, or limited-time offers.

Practical takeaway: Mst may be a better pick if a merchant already has an email/SMS stack and wants a lightweight wishlist that plugs into existing flows. GP might be preferable when the aim is to use reminders as an active merchandising lever to increase conversion and AOV.

Upsells, Bundles, and Volume Discounts

This is the area where GP differentiates itself. GP advertises upsell offers on product and cart pages, product bundles with discounts, and tiered volume discounts. These features turn wishlist insights into immediate merchandising actions, giving a path from saved intent to higher average order value.

Mst does not natively advertise built-in upsells, bundles, or advanced volume discounts. Its value is concentrating on wishlist functionality and feeding notifications to marketing tools where upsells can be orchestrated externally.

Practical takeaway: Brands that prioritize directly increasing AOV through onsite promotions should evaluate GP for the built-in capabilities. Merchants who prefer to manage upsells through a separate merchandising app or email flows might find Mst's single-focus approach simpler and more value-driven.

Guest Wishlist & Sharing

Both apps support guest wishlists and social sharing. This functionality reduces friction for first-time visitors and amplifies reach when shoppers share lists on social networks or messaging apps. Mst highlights unlimited customers and giftable lists, while GP emphasizes sharing as part of the conversion funnel (e.g., social proof, referral traffic).

Practical takeaway: Either solution supports guest behavior and social sharing; choose based on whether social sharing must feed into analytics and upsell logic (GP) or into existing marketing channels (Mst).

Customization & Theming

Mst emphasizes full customization: the "My Wishlist" page can be tailored with Liquid templates, HTML, and CSS to match store themes and responsive design. API and headless support means more control for design-driven merchants.

GP claims fully customizable upsell and bundle presentation, which is important for user experience and conversion — but the degree of granular theming (Liquid support, headless compatibility) is less explicit in the app overview.

Practical takeaway: Designers and merchants using headless or heavily customized themes may find Mst's explicit Liquid and template support valuable. Merchants wanting out-of-the-box customizable upsell widgets should test GP's editor to ensure the look and feel align with the brand.

Pricing & Value

Pricing is a frequent deciding factor, but "cheap" isn't always the same as "better value for money." Value depends on which outcomes a merchant needs — intent capture, conversion uplift, or retention — and how much app sprawl will cost over time.

Mst: Wishlist + Marketing flow Pricing

Mst offers a simple, one-plan pricing model at $2/month. That single plan claims to include all features, with no limits on items or customers. For merchants on a tight budget or stores in early stages, a $2/month plan that supports unlimited wishlists and guest users represents a strong cost-efficient option.

Value considerations:

• Low fixed cost for core wishlist features.
• Requires separate apps or marketing stack for advanced AOV/PROMO work.
• Potential long-term cost savings, but higher operational overhead for maintaining multiple tools.

GP ‑ Wishlist & Upsell Suite Pricing

GP lists a Free tier with many features enabled: guest wishlist support, customizable styling, back-in-stock alerts, automated reminders, upsell offers, tiered volume discounts, bundles, and smart product recommendations. The presence of a free plan that includes upsells and bundles is compelling for merchants evaluating ROI without initial spend.

Value considerations:

• Free plan reduces the friction to trial advanced AOV features.
• Unknown paid tier capabilities or limits beyond the free plan (not listed in provided data) — merchants should confirm limits on sends, included analytics, and branding.
• If the free plan supports basic AOV tools, GP may present immediate value for stores that want merchandising features without added cost.

Which App Offers Better Value for Money?

• For strict budget-conscious merchants who only need wishlist capture and basic alerts, Mst at $2/month is excellent value.
• For merchants that want built-in AOV tools and prefer to test upsells/bundles immediately, GP's Free tier may deliver better initial value.
• Consider the total cost of ownership. Using multiple single-purpose apps (a wishlist + separate loyalty + review apps) increases app fees and integration complexity. For many stores, a platform that bundles retention features into a single subscription can be better value over time.

Integrations & Ecosystem Compatibility

Integration capability is a major operational factor. The right integrations enable reliable notification delivery, effective automation, and easier analytics.

Mst: Wishlist + Marketing flow Integrations

Mst lists integrations with:

• Klaviyo (Email & SMS)
• Brevo (formerly Sendinblue)
• PushOwl (push notifications)
• Apploy Mobile App Builder
• Shopify Flow
• API & headless support

This set positions Mst as an app designed to hand off wishlist events to specialist messaging platforms and to fit into modern storefront architectures.

Practical takeaway: Stores that already rely on Klaviyo or Brevo can easily incorporate wishlist triggers into existing workflows, making the experience cohesive.

GP ‑ Wishlist & Upsell Suite Integrations

GP lists compatibility with Checkout (explicitly). The app supports wishlist data export and internal analytics tracking of wishlist-driven clicks, orders, and revenue.

Practical takeaway: GP’s on-site integrations (upsells on product/cart) reduce reliance on external apps for increasing AOV, but merchants who want advanced email flows may need to confirm which email and SMS platforms GP integrates with directly.

Integration Decision Factors

• If a merchant’s stack relies heavily on Klaviyo or omnichannel messaging tools, Mst’s explicit integrations may accelerate implementation.
• If a brand wants to implement on-site upsells and bundles without wiring multiple apps together, GP’s built-in merchandising tools can reduce complexity.

Analytics, Data & Reporting

Data about wishlist behavior matters for merchandising and marketing.

GP emphasizes analytics around clicks, orders, and revenue generated from wishlists and gives the ability to export wishlist data to power campaigns. That reporting helps link wishlist behavior directly to revenue uplift.

Mst focuses less on built-in analytics in its feature summary and more on delivering events to marketing platforms where reporting is centralized. That makes sense for stores that already use tools like Klaviyo or Shopify analytics dashboards.

Practical takeaway: Merchants who want immediate, out-of-the-box analytics connecting wishlist activity to revenue may prefer GP. Merchants with an established analytics stack might prefer Mst to feed events into a centralized system.

Support, Onboarding & Reliability

Support quality and onboarding can materially affect time-to-value.

• Mst has a long list of reviews (150) with a 4.7 rating, which suggests a mature app with broad adoption and generally positive merchant experiences.
• GP has a higher rating (4.8) but fewer reviews (11). High rating with few reviews can indicate strong experiences among early adopters, but a smaller sample size makes it harder to generalize.

Support expectations:

• Merchants should evaluate response times, availability of setup assistance, and options for customizations (Liquid changes, CSS tweaks). Mst’s headless and Liquid support suggests it caters well to developer-led stores.
• GP’s built-in upsell features may reduce the need for developer work but merchants should confirm the level of support for template adjustments and A/B testing.

Implementation & Maintenance

Some apps are plug-and-play; others require theme edits or developer involvement.

Mst advertises flexible customization using Liquid, HTML, and CSS. That implies more control but potentially extra development time for highly branded or headless storefronts.

GP’s focus on merchandising widgets and automated reminders suggests quicker activation for the business user — add upsell packages and set rules — but merchants should verify how changes propagate across themes and mobile views.

Practical takeaway: If a fast, non-technical launch is a priority, GP’s out-of-the-box merchandising features can be appealing. If complete design control and headless compatibility are required, Mst’s developer-friendly features win.

Security, Privacy & Compliance

Both apps process user interactions and potentially customer contact information for alerts. Merchants must validate:

• How each app stores wishlist data.
• Compliance with GDPR, CCPA, and other privacy regulations.
• Whether consent flows for marketing messages are handled or if merchants need to extend consent capture through their email/SMS provider.

Mst and GP do not list deep security details in the provided data; merchants should request data processing agreements and security documentation before adoption.

User Reviews & Social Proof

Metric comparison:

• Mst: 150 reviews, 4.7 rating — indicates broad use and generally positive sentiment across many merchants.
• GP: 11 reviews, 4.8 rating — high satisfaction among a smaller group; consider reading individual reviews to understand context.

Interpretation:

• High volume of reviews reduces the impact of outliers. Mst’s review count suggests more widespread distribution across store sizes and industries.
• GP’s higher rating with limited reviews can be an indicator of strong early-stage product-market fit, especially for stores that needed upsell features.

Scalability & Enterprise Readiness

For merchants expecting substantial growth or enterprise requirements, consider:

• Headless and API support (Mst lists both).
• Checkout and POS compatibilities (Growave and GP indicate Checkout integration).
• Multi-language/multi-currency support (Mst lists these features explicitly).

For larger stores or Shopify Plus merchants, options that include enterprise-grade support, checkout extensibility, and dedicated onboarding are critical. Merchants should confirm if either vendor offers enterprise plans or migration assistance for large catalogs and high-traffic stores.

Summary of Strengths & Weaknesses

Mst: Wishlist + Marketing flow

• Strengths:
  • Low fixed price ($2/month) for all features.
  • Unlimited items and guests; solid base wishlist functionality.
  • Headless and Liquid template support for deep customization.
  • Integrations with Klaviyo, Brevo, PushOwl.
  • Large review base (150) with favorable rating (4.7).
• Weaknesses:
  • No built-in upsells or bundle mechanics in the feature list.
  • Relies on external channels for AOV strategies, increasing tool count.
  • Merchants may need technical resources for extensive theming.

GP ‑ Wishlist & Upsell Suite

• Strengths:
  • Wishlist plus built-in upsells, bundles, and volume discounts.
  • Free plan includes many advanced merchandising features.
  • Out-of-the-box analytics linking wishlist actions to revenue.
  • High rating (4.8) among reviewers.
• Weaknesses:
  • Small review sample size (11); long-term reliability across diverse merchants is less proven.
  • Integration set for messaging platforms not explicit — may require verification.
  • Design/theming flexibility and headless support details are less explicit.

Which App Is Best For Which Merchant?

• For brands on a tight budget prioritizing a simple, robust wishlist that integrates into an existing email/SMS stack: Mst: Wishlist + Marketing flow delivers excellent value for money.
• For brands seeking immediate onsite merchandising impact — upsells, bundles, and volume discounts — without adding separate upsell apps: GP ‑ Wishlist & Upsell Suite offers better built-in capabilities.
• For merchants focused on deep design control, headless storefronts, or who already invest heavily in email automation: Mst’s API and Liquid support will be beneficial.
• For stores that want to experiment with conversion lifts from wishlist-based upsells and test bundles with little initial cost: GP’s Free tier is attractive.

The Alternative: Solving App Fatigue with an All-in-One Platform

Many merchants reach the same inflection point: a wishlist app solves intent capture, but then additional features are needed — loyalty programs, reviews and social proof, referrals, VIP tiers, or a checkout extension. Adding separate apps for each capability creates a maintenance burden: multiple billing lines, overlapping code that can slow page speed, fragmented reporting, and a fragmented customer experience.

This phenomenon is commonly called "app fatigue." App fatigue is the cumulative cost of multiple single-purpose solutions that each solve a narrow problem but collectively create complexity. The cost isn’t only monetary; it also shows up as slower development cycles, inconsistent UX, and higher customer churn when retention tools are not tightly integrated.

Growave’s value proposition addresses app fatigue with a "More Growth, Less Stack" philosophy. By combining wishlist, loyalty and rewards, referrals, reviews and UGC, and VIP tiers into a single platform, Growave reduces integration overhead and centralizes retention metrics.

• Consolidate retention features into one subscription by choosing to consolidate retention features. This reduces recurring app fees and simplifies billing.
• Implement loyalty and rewards that drive repeat purchases to turn first-time buyers into repeat customers.
• Collect and showcase authentic product feedback by using tools to collect and showcase authentic reviews, which strengthen conversion rates and provide UGC for marketing.
• For merchants planning a Plus migration or with enterprise needs, explore tailored solutions for high-growth Plus brands that include checkout extensions and dedicated onboarding.

Growave integrates with many of the common tools merchants already use (Klaviyo, Omnisend, Gorgias, Recharge), which preserves existing workflows while reducing the number of apps required to manage retention. For merchants evaluating Growave, the platform’s pricing plans are clearly structured to scale with store volume and include a free trial and entry plan for growth stores; merchants can review options and start a trial on the pricing page to assess fit: consolidate retention features.

How Growave Addresses the Gaps Identified in the Comparison

• Wishlist + Notifications: Growave includes wishlist functionality alongside automated back-in-stock and price-drop logic, reducing the need for a separate wishlist app.
• Loyalty + Wishlist Synergy: Reward actions can be tied to wishlist behavior (e.g., points for saved items or points for purchases made from wishlist reminders), bridging intent capture and retention in a single dataset. Merchants can set up loyalty and rewards that drive repeat purchases without juggling multiple providers.
• Reviews & Social Proof: Growave’s review tools handle review collection, photo uploads, and incentivization, enabling stores to collect and showcase authentic reviews and use UGC in marketing campaigns.
• Reduced Integration Work: Because features are natively part of the same platform, there is less reliance on webhooks and fewer cross-app failures. This improves reliability and simplifies analytics.
• Enterprise Resources: For high-growth merchants, Growave provides dedicated plans and Plus-focused services that include checkout extensions and API/SDK support — merchants can explore case studies and inspirations for adoption customer stories from brands scaling retention.

For merchants wanting to see whether an integrated approach aligns with business goals, schedule an evaluation. Book a personalized demo to see how an integrated retention stack accelerates growth.

Practical Migration Considerations

Merchants moving from standalone wishlist apps to a broader retention platform should plan for:

• Data migration: Export existing wishlists and customer events to avoid losing historical intent data.
• Theme integration: Test templates and mobile views in a staging environment.
• Messaging flows: Replicate or improve current Klaviyo/Omnisend flows using the platform’s event triggers.
• Loyalty rules: Define point structures and VIP tiers before launch to avoid confusing customers mid-campaign.

Because Growave integrates with common marketing and customer support tools, migration often involves fewer custom connectors and lower technical debt than assembling diverse single-purpose apps.

Implementation Examples and Operational Advice

This section outlines practical steps and strategic advice for merchants evaluating a wishlist-only tool versus an integrated platform.

For a Merchant Considering Mst (wishlist-first, existing stack)

• Keep wishlist lightweight and feed events to Klaviyo/Brevo to control messaging cadence.
• Use Mst’s liquid templates to match wishlist pages to store branding.
• Create automated Klaviyo flows:
  • Back-in-stock alert sequence (2-3 messages).
  • Price-drop sequence with urgency.
  • Abandoned wishlist winback with discount incentives.
• If converting wishlist users into repeat customers is a priority, layer a separate loyalty app or prepare to migrate to an integrated platform when order volume grows.

For a Merchant Considering GP (wishlist + onsite AOV)

• Enable upsell offers on product and cart pages, test variations for highest uplift.
• Create product bundles tied to wishlist behavior to encourage larger carts.
• Use GP’s analytics to measure uplift from wishlist-activated promotions.
• Validate styling across mobile and desktop to ensure upsell widgets are not intrusive.

For Merchants Considering an Integrated Alternative (Growave)

• Start by mapping current retention touchpoints: wishlist events, loyalty campaigns, review collection cycles.
• Configure loyalty + wishlist interactions so wishlist actions can trigger points or rewards.
• Use review collection to feed social proof into product pages, emails, and ad creatives.
• Implement referral programs that leverage wishlist sharing to acquire new customers at lower CAC.
• Track LTV and repeat purchase rates centrally to measure the impact of consolidation.

Comparative Checklist for Decision-Making

Below are concise decision prompts to help merchants choose:

• Need wishlist only, minimal spend, and deep theme control? Consider Mst ($2/month).
• Need wishlist plus built-in upsells and bundles to raise AOV fast? Consider GP (Free tier available).
• Want to reduce app count, centralize retention, and combine loyalty, reviews, referrals, and wishlist? Consider an integrated platform that can replace multiple apps; evaluate based on integrations with Klaviyo and checkout extensibility.

Realistic ROI Expectations

• Wishlist apps primarily increase purchase intent capture and may improve conversion rates when paired with targeted alerts. Expect modest direct revenue uplift from saved items unless combined with upsells or loyalty incentives.
• Upsell and bundle features can directly increase average order value; test incremental uplift with A/B tests.
• Integrated retention platforms typically drive larger improvements over the medium term by improving repeat purchase rates and lifetime value (LTV) via loyalty and referral mechanics.

Conclusion

For merchants choosing between Mst: Wishlist + Marketing flow and GP ‑ Wishlist & Upsell Suite, the decision comes down to priorities and long-term strategy. Mst is a strong, budget-friendly solution for stores that need a customizable wishlist and plan to use separate tools for messaging and loyalty. GP is better suited for merchants that want wishlist behavior to directly trigger onsite merchandising actions like upsells, bundles, and volume discounts — and the Free tier is a low-risk way to test those strategies.

Beyond selecting between single-purpose solutions, many merchants benefit from consolidating functionality into one integrated retention platform. Growave’s "More Growth, Less Stack" approach combines wishlist, loyalty and rewards, referrals, reviews and VIP tiers into a single suite designed to reduce app fatigue and centralize retention metrics. Merchants interested in replacing multiple apps with a cohesive retention platform can evaluate plans and start a trial to measure the impact on LTV and retention: consolidate retention features.

Start a 14-day free trial to see how a unified retention stack simplifies operations and improves repeat purchase rates: consolidate retention features.

FAQ

Which app provides better immediate value for increasing average order value?

GP ‑ Wishlist & Upsell Suite includes built-in upsells, bundles, and volume discounts — features designed to increase average order value immediately. Mst focuses on wishlist capture and relies on external merchandising or marketing apps for AOV strategies, which can be equally effective but may require more integration and ongoing costs.

How do integrations with email and SMS platforms compare?

Mst explicitly lists integrations with Klaviyo, Brevo, and PushOwl, making it straightforward to route wishlist events into established marketing flows. GP emphasizes checkout and onsite upsells; merchants should request details about direct integrations with Klaviyo or Omnisend if email automation is a priority.

What are the differences in customization and theme support?

Mst calls out Liquid template support, HTML/CSS customizations, and headless API compatibility, which benefits stores needing deep design control. GP advertises customizable upsell and bundle presentations but provides fewer specifics about headless or Liquid-level control in the summary; merchants should validate theming flexibility during trial.

How does an all-in-one platform compare to specialized apps?

An integrated platform reduces app sprawl by combining wishlist, loyalty, reviews, referrals, and VIP tiers into a single solution. This consolidation typically simplifies billing, reduces potential conflicts between apps, centralizes analytics, and creates more consistent customer journeys. For merchants who want to minimize operational overhead and focus on LTV improvements, a unified approach often delivers better long-term value for money than assembling multiple single-purpose apps. For merchants who prefer granular control or only need a specific feature, specialized apps can still be the right short-term choice.