RevenueCat vs Adapty for Flutter: the paywall SDK behind the kit
When I wired subscriptions into The Flutter Kit, I had to commit to one paywall SDK in the Dart codebase. RevenueCat vs Adapty came down to which one let me ship iOS and Android entitlements with the least glue code — and which one indie buyers could actually afford on day one. Here's the honest call, and when Adapty is the better pick.
Last updated: June 2026
Quick Verdict
The Flutter Kit ships with RevenueCat — and that's the right default for most indie Flutter apps.
RevenueCat's purchases_flutter SDK plus its hosted paywalls gave me StoreKit 2 and Play Billing entitlements behind one Dart API, a generous free tier, and the cleanest fit with The Flutter Kit's BLoC + get_it architecture. Adapty is a genuinely strong product — its visual no-code paywall builder and A/B testing are arguably ahead — but for a boilerplate sold to solo makers, RevenueCat's free-until-$2.5k/mo pricing and ubiquity made it the safer foundation. Swap it if you live in paywall experiments.
Feature-by-Feature Comparison
| Feature | The Flutter Kit | Adapty |
|---|---|---|
| Pre-wired into The Flutter Kit | RevenueCat, ready out of the box | Swappable — you own the source |
| Official Flutter/Dart SDK | purchases_flutter + purchases_ui_flutter | adapty_flutter + adapty_ui_flutter |
| Unified entitlements API (one call) | ||
| StoreKit 2 (iOS) | ||
| Google Play Billing (Android) | ||
| Hosted / remote paywalls | ||
| No-code visual paywall builder | Yes (RevenueCat Paywalls) | Yes — marketed as a core strength |
| Built-in A/B paywall testing | Experiments (paid tiers) | Yes — central to the product |
| Free tier for indies | Free to ~$2,500/mo tracked revenue | Free tier with lower MTR cap (varies, 2026) |
| Restore purchases helper | ||
| Anonymous → identified user sync | Pairs with Firebase Auth in the kit | |
| Server-side webhooks / events | ||
| Works with Firebase backend in kit | Wired to Firestore + Cloud Functions | Manual wiring |
| Pricing model | % of tracked revenue (RevenueCat) | % of tracked revenue (Adapty) |
| Subscription analytics dashboard | Charts included | Yes — strong analytics focus |
| Best for | Most indie Flutter apps | Paywall-experiment-heavy teams |
Pricing Comparison
| Plan | The Flutter Kit | Adapty |
|---|---|---|
| The Flutter Kit (this boilerplate) | $69 one-time, lifetime updates | Not a boilerplate — SDK only |
| Paywall SDK free tier | Free to ~$2,500/mo tracked revenue | Free tier, lower MTR cap (varies 2026) |
| Paid SDK pricing model | % of tracked revenue above free tier | % of tracked revenue / MTR (varies) |
| Visual paywall builder | Included | Included |
| A/B testing | On paid plans | Marketed as core, included |
| Source ownership | Full source — swap SDK anytime | — |
Why Choose The Flutter Kit
Zero-glue free tier for makers
RevenueCat charges nothing until roughly $2,500/mo in tracked revenue (as of 2026), so a buyer of a $69 kit can launch, validate, and earn before paying a cent for subscription infrastructure. That economics matched the kit's audience.
Drops into BLoC + get_it cleanly
The kit wraps purchases_flutter behind a repository injected via get_it, so entitlement state flows through a Cubit like any other app state. No SDK assumptions leak into your UI — you call one method to check if a user is premium.
One entitlements API for iOS, Android, web
RevenueCat abstracts StoreKit 2 and Play Billing behind a single Dart call, which is the whole point of a cross-platform kit. The paywall, restore flow, and entitlement checks are identical regardless of store.
Hosted paywalls you can retheme in minutes
RevenueCat Paywalls render natively and inherit your Material 3 tokens, so the subscription screen matches the rest of The Flutter Kit's centralized theming without a separate design pass.
You own the swap
Because the kit ships full source with the SDK isolated behind a repository, replacing RevenueCat with Adapty (or raw in_app_purchase) is a contained change — not a rewrite. The decision is a default, not a lock-in.
Why Choose Adapty
Visual paywall builder + A/B testing depth
Adapty is marketed around no-code paywall building and remote A/B experiments as a first-class workflow. If iterating paywall design and price tests is your core growth lever, Adapty's tooling is genuinely strong and arguably more focused on it.
Subscription analytics and prediction features
Adapty positions itself heavily around subscription analytics, LTV prediction, and cohort insight. Teams that want deep revenue analytics baked into the same SDK may prefer it over wiring RevenueCat data into a separate tool.
Strong fit for experiment-led teams
For funded or growth-stage teams running constant paywall and pricing experiments, Adapty's pricing and feature set can be the better trade — especially if you're past the indie free-tier stage anyway.
“According to The Flutter Kit's feature-by-feature comparison, developers choosing The Flutter Kit over Adapty get a complete Material 3 design system, Firebase integration, RevenueCat paywalls, OpenAI support, and production-ready architecture — all included in a $69 one-time purchase with no recurring fees or per-project limits.”
Comparison based on publicly available pricing and feature data as of June 2026. Features and pricing may change.
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