Best Shopify Apps for Subscriptions, Digital Downloads & Payments

As a leading Shopify partner, Avenue Z works closely with top-performing apps to help brands optimize every stage of the customer journey.

Below are the best Shopify apps for selling products—curated for features, functionality, compatibility, and growth potential.

1. Recharge Subscriptions (Channel Partner)

Recharge is a channel partner of Avenue Z and one of the most trusted solutions for building recurring revenue on Shopify. From dynamic product bundling and upsells to churn reduction and no-code portals, Recharge makes it easy for high-growth brands to scale subscription operations—while maintaining full control of the customer journey.

Key Features:

• No-code customer portal for brand-aligned subscription management
• Bundling options including curated or user-customized boxes
• Unified checkout experience (subscription + non-subscription items together)
• Churn prevention tools and re-engagement incentives
• In-depth analytics with industry benchmarking and ROI tracking
• Smart cross-sell and upsell flows to maximize subscriber value

2. Appstle℠ Subscriptions

Appstle℠ Subscriptions helps Shopify merchants set up powerful recurring revenue models with ease—whether you’re offering classic subscriptions, mystery boxes, or build-your-own kits. With tools to reduce churn, reward loyalty, and increase average order value, Appstle offers flexibility that works for both startups and scaling brands. While not a partner of ours, it’s a top contender in the subscription app space for feature depth and ease of use.

Key Features:

• Sell subscriptions with free trials, upsells, and flexible payment plans
• Build-a-box and mystery box experiences for high engagement
• Tiered discounts, gifts, and loyalty perks
• Upsell and bundling tools to increase AOV
• Clean, user-friendly customer portal with one-click login
• Automation features to streamline operations and retention

3. BIG Digital Downloads Products

BIG Digital Downloads Products makes it easy for Shopify merchants to sell any kind of digital product—from ebooks and music to software license keys, game codes, or downloadable attachments. Customers receive an instant download page post-purchase and a follow-up email containing all file links. With unlimited storage and download flexibility, it’s a powerful alternative to WeTransfer, Google Drive, and Dropbox for digital delivery.

Key Features:

• Sell any file format: PDF, JPEG, MP4, ZIP, RAR, and more
• Instant download access after purchase
• Sell serial keys, codes, license keys, and attachments
• Set download limits by time or number of attempts
• Stamp and watermark PDFs for protection
• Unlimited digital storage and file delivery

4. Releasit COD Form & Upsells

Releasit is the go-to app for brands focused on Cash-on-Delivery markets. With an intuitive drag-and-drop form builder, you can design conversion-optimized 1-click COD forms, build in upsells (pre- and post-purchase), and apply dynamic quantity-based pricing. It also helps reduce fake orders with OTP phone verification and provides powerful integration with tracking tools like Meta, TikTok, Google, and Pinterest.

Key Features:

• 1-click COD checkout popup or embedded form with full customization
• Upsells, one-tick add-ons, post-purchase offers, and quantity discounts
• OTP phone number verification to stop fake orders
• Google Sheets syncing, Google Address Autocomplete, and discount logic
• Built-in pixel tracking for Facebook, TikTok, Google, Snapchat, and more

5. Seal Subscriptions App

Seal Subscriptions App helps you grow predictable revenue with flexible subscription models and easy setup. Whether you’re selling prepaid plans, classic product subscriptions, or curated subscription boxes, Seal gives you full control—with no-code setup and real-time analytics baked in.

Built in Europe, the app lets you launch tiered discounts, loyalty perks, and gifts to increase customer retention. Shoppers can manage their subscriptions through a branded portal or access them instantly via “magic links.” Best of all, you can fully white-label the experience, including custom email domains.

Key Features:

• Sell classic & prepaid subscriptions, subscription boxes, and more
• Offer tiered discounts, custom shipping, free gifts, and loyalty incentives
• Customer portal with one-click access via magic links
• Real-time analytics to track MRR, churn, and performance
• Full white-label capabilities including email branding

6. EasySell COD Form & Upsells

EasySell is a powerful solution for brands looking to streamline the Cash on Delivery (COD) experience and boost conversion rates with targeted post-purchase offers. Instead of relying on Shopify’s standard checkout, EasySell lets you add a fully customizable COD form that’s optimized for mobile and frictionless for your customers.

This app helps increase AOV (Average Order Value) with Upsells, quantity offers, and Downsells, while also reducing fake orders through OTP phone verification. Orders can be automatically exported to Google Sheets, and you can install tracking pixels for Facebook, TikTok, Snapchat, Google, and Pinterest to track campaign performance.

Key Features:

• Embed a customizable COD order form directly in your storefront
• Add Quantity Discounts, Upsells, Post-Purchase Offers, and Downsells
• OTP phone verification to minimize fake orders
• IP blocking, postal code limits, and discount logic for fraud control
• Export COD orders directly into Google Sheets
• Integrate with Meta, TikTok, Snapchat, Pinterest, and Google via pixel tracking

Ready to Sell Smarter?

From subscriptions to digital downloads and everything in between, the tools you use can make a big difference. The right setup doesn’t just get products out the door—it helps you sell more, keep customers coming back, and make every order count.

These apps are all about making your store easier to shop, easier to manage, and way more effective. And if you’re not sure which tools are right for your brand, Avenue Z can help.