Onboarding and paywalls in several variants, and a count of which one sells
Appto builds the purchase screen and the first-run flow in several variants and shows how many people reach the end and which paywall people buy from more often.

Two paywalls live. Each one’s conversion and the winner
What Appto does and where you choose
Appto does it
- Builds StoreKit 2 subscriptions and the purchase screen in every app
- Prepares several onboarding and paywall variants and splits views between them
- Checks each variant against Apple’s rules for purchase screens
- Counts starts, completions, Buy taps and the conversion of each variant
Your choice
- Decide which variants go live
- Give the winner all the views with one click
Variant shares and counts live on your own server on Cloudflare: the app takes the shares from there and sends anonymous counts of views and taps back to it, with no device ID or address. The app doesn’t talk to appto.store.
More screens

Screens use demo data, with no real apps or numbers.
Where this happens
Built in the Build phase. After launch the comparison keeps running on real buyers.
Nearby on the path
Code and self-check
SwiftUI, then it walks every screen on the simulator and fixes what it finds
Screenshots in every language
Screenshot sets for iPhone and iPad in 39 languages
ASO and the App Store page
Name, subtitle and keywords in every language, a page score out of 100
Your own AI, on your own subscription
Appto runs on Claude Code or Codex with the Claude Pro or ChatGPT Plus subscription you already have. Each app can have its own agent, and you can switch any time.
Who owns the code, where the keys live, what it costs. All answers →