About this app
Koko gives you unlimited conversation practice while keeping your voice, information, and data private on your device. Nothing leaves your iPhone. It can even be run in Airplane mode :) Learn a new language by speaking and listening more! A lot of people struggle to actually hold a conversation when learning a language because they don't practice speaking and immersing themselves in the language. Features We Love: - Fully private. Your voice and conversations never leave your device. - Conversations are scaled to your level. For beginners, Koko uses small, beginner-friendly words and speaks slowly. For advanced speakers, Koko speaks quickly and uses advanced vocabulary. - Quick translations - Feedback on your responses to help you learn how to speak better Current languages: - English - Spanish - French - Italian - German - Japanese - Polish - Vietnamese Koko requires iPhone 12 or newer and iOS26+ in order to run the conversation models on your own device. Koko requires around 3.4GB of space to download the language models for fully-offline conversation. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Latest release
What’s New
Added Vietnamese, bug fixes.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 21, 2026 · 6:39 PM Free
Screenshots
