An Android keyboard that puts curated AI prompts one tap away. Open it in any chat app, pick a prompt, and it is typed into the text field for you. It never presses Send. The prompt panel collapses to a slim bar the moment you insert, so the conversation and its send button stay visible. Favorites, recents and the bundled prompt library stay on your device. Free on Google Play, no account needed. A web prompt library is available too.

What became possible in your product with Astra that was not practical before?

As a solo, non-engineer maker, reviewing changes across Android, the web and four languages was difficult to do consistently. GPT-6 Astra in Codex made it practical to connect usability research to specific fixes, inspect the implementation, run checks, recover the intended Android UI and verify it on a real device. Astra also helped align the website with the actual product: an Android closed beta, an available Web Library and Android sync still in preparation. I could carry a coordinated improvement through implementation, testing and published explanations. Gemini and Claude in Antigravity also contributed to development.

Hi Product Hunt! I built Banana Keyboard because using good AI prompts on a phone meant repeatedly switching between notes and chat apps. Switch to the keyboard, choose a prompt card, insert it, and return to your regular keyboard. Bundled prompts, favorites and recents work locally. The keyboard does not read arbitrary text in other apps or press Send. The Android app is currently a closed beta. Apply through the website with the Google account you use for Play; installation requires a tester invitation. The separate Web Library is available now, while syncing saved web prompts to the Android keyboard is still in preparation. This product existed before the Astra Challenge. I used GPT-6 Astra in Codex to investigate usability, review implementation, recover and verify the intended Android UI, and align the website with what users can actually do. Gemini and Claude in Antigravity also contributed to development. I'd love feedback on prompt discovery and the keyboard-switching flow. Which prompts do you repeatedly copy on your phone?

What became possible in your product with Astra that was not practical before?

Banana Keyboard

Insert AI prompts from your Android keyboard

Insert AI prompts from your Android keyboard