I built a smart custom keyboard for iPhone

Hey IH! I'm Quoc, a solo indie dev from Vietnam. I just shipped Typecraft AI - a custom keyboard app for iPhone and iPad that goes way beyond just typing.

Voice and Text Translation - Speak or type in one language, get instant translations. Supports 18+ languages including English, Vietnamese, Japanese, Korean, French, Spanish, Arabic, and more. There is a two-person conversation mode where two people speak alternately and the app translates in real-time.

Smart Snippets - Save reusable phrases, quick replies, customer support templates, social bios, hashtags. Access them right from the keyboard extension - no app switching needed. Everything is stored locally and works offline.

Keyboard Studio and Themes - Design your own keyboard with custom backgrounds, GIF overlays, key styles, fonts, and colors. Plus a library of ready-made themes.

AI Tools - Fix grammar and translate text directly inside the snippet editor using Apple Intelligence.

The Stack: Native iOS (Swift, UIKit), Keyboard Extension with shared App Group storage, On-device Apple Translation framework, Speech Recognition for voice input.

Monetization: Free with ads. Typecraft Pro at $4.99 one-time or $29.99/year for unlimited features and ad-free experience.

Why I built this: Most keyboard apps are either pure theme apps or basic translators. None combine text productivity with translation AND customization in one keyboard. I wanted something that helps people type faster and communicate across languages.

Download: https://apps.apple.com/us/app/typecraft-ai-voice-keyboard/id6762547479