DField SolutionsMérnöki stúdió · Budapest
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CASE STUDIES · saas

Mobile puzzle game launch · Expo-only, 60fps on mid-tier Android

Shipped a React Native puzzle game via Expo · 60fps on Pixel 6, daily-challenge AI generation, App Store + Play Store approved on first submission.

Timeline6 weeks
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Reviewed by
0160fps on Pixel 6 + 61fps on iPhone 11 (measured).
02 / AI cost per DAU~$0.002.
03App Store + Play Store approved on first submission.
04 / Launch day8,400 downloads.
The problem01 / 03
  • 01Studio had never shipped a React Native game · assumed native was required for 60fps.
  • 02Daily-challenge generator needed AI but couldn't incur a cost per user.
  • 03Tight budget · had to ship with Expo managed, not bare RN.
  • 04Launch window locked to a marketing campaign.
The solution02 / 03
  • 01Skia + Reanimated 3 for the 60fps render loop · measured on Pixel 6 + iPhone 11.
  • 02Batched daily-challenge generation · one overnight OpenRouter call produces 10k puzzles.
  • 03Expo managed with 2 custom native modules (haptics + game-center hooks).
  • 04EAS Update pipeline for rapid post-launch tuning without store re-review.
The outcome03 / 03
  • 0160fps on Pixel 6 + 61fps on iPhone 11 (measured).
  • 02AI cost per DAU: ~$0.002.
  • 03App Store + Play Store approved on first submission.
  • 04Launch day: 8,400 downloads.
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