Launched
Easy Americano
Add players, set points, and get balanced rotating matches — so everyone plays and the most consistent player wins.
App development studio
Checksum builds iOS apps that people actually want to use.
We design, build, and ship with focus on performance and clarity. Our first app is Easy Americano — and more is coming.
What we build
Small, high-quality products — from idea to App Store release.
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01
iOS app development
Native features, clean architecture, and performance-focused UI.
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02
Design & prototyping
Quick iterations so you can validate flows before we build the final product.
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03
Launch & support
We fix bugs, add improvements, and keep your app healthy after release.
Our first app: Easy Americano
Built for social padel tournaments with rotating matches and live scoring.
How we work
A simple process that reduces surprises and keeps momentum.
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01
Kickoff & scope
We align on goals, users, and what to build first.
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02
Prototype & iterate
We validate flows quickly before we invest in implementation.
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03
Build & polish
We implement natively and focus on UX details that matter.
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04
Launch & improve
After release, we monitor, fix issues, and add enhancements.
Ready to build your next app?
Share your idea and timeline. We will respond with a clear next step and a realistic plan.