TEOS IT
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Notes from building apps.

What we learn shipping React Native, web and AI products — written for founders and developers.

For founders · Oct 31, 2026 · 3 min read

React Native or native in 2026? What we tell our clients.

For most products one React Native codebase is the faster and cheaper road to both stores. Here's how we decide — and the few cases where we'd tell you to go native.

React Native · Oct 31, 2026

Shipping one app in 6 languages: lessons from Kellion

React Native · Oct 31, 2026

Offline-first with Expo: how Hortium works without an account

For founders · Oct 31, 2026

What an MVP really costs — and where the money goes

AI · Oct 31, 2026

Adding an AI assistant to an existing app, step by step

For founders · Oct 31, 2026

Getting through App Store review the first time

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