Koko: Conversation Practice
Koko is a fully local, offline language learning app for private listening and conversation practice on iPhone.
Is this your product? Claim it to edit the listing, post updates and answer questions. Prove it with an email address at the product's domain (the listing becomes Claimed), or put the LotsDirectory badge on your website (the listing becomes Verified, and its link to your website is followed while the badge is live).
Description
Koko is a fully local, offline language learning app for private listening and conversation practice on iPhone.
About Koko: Conversation Practice
What is Koko: Conversation Practice?
Koko is a fully local language learning app for listening and conversation practice on iPhone. Speech recognition, conversation intelligence and natural voice run on the device.
What Koko: Conversation Practice does
Koko gives listening and speaking practice with no cloud and no connection required for those core features. Recordings, words and progress never need to leave the device, and no voice recordings are sent to a server. An on-device language model can make mistakes, invent information, mistranslate or produce awkward phrasing, so responses are practice material rather than verified facts or professional advice.
Who Koko: Conversation Practice is for
Koko is made for iPhone. It supports English, Spanish, French, Polish, German and Japanese, and available features may vary by language and app version. Slow, easy words are for beginners. Complex, natural speech is for advanced learners.
How Koko: Conversation Practice works
Pick a topic, a situation, or let Koko surprise you. Talk at your pace. Koko listens and responds on-device. Then review useful words, speaking time and past recordings. No account is required to start speaking. Microphone access is turned on in iOS Settings.
Key features
- Practice real conversations with a patient partner that adapts to your level and lets you try again.
- Hear natural speech, replay tricky phrases, and follow speaking time, vocabulary, consistency and level progress without a cloud profile.
- Unlimited speaking practice works offline, including on a plane and in airplane mode.
- Microphone audio, transcripts, conversations, generated responses and learning progress remain on the device.
- 100% on-device, works offline, and private by default.
- Reinstalling may remove locally stored conversations and progress, and that data cannot be restored.
- Choose Delete App in iOS rather than Offload App, because Offload App may preserve documents and data.
- Apple manages App Store purchases, subscriptions and refunds. Open iOS Settings, select the Apple Account, and choose Subscriptions.
Facts from getkoko.app, checked 13 October 2026
- Publisher is Prism Labs LLC in New Jersey, United States.
- Privacy requests and legal questions can be sent to hey@getkoko.app.
- Check the iPhone model, iOS version and microphone access before contacting support, and do not send private conversation content.
- The home page lists iOS with English, Spanish, French, Polish, German and Japanese.
Written from Koko: Conversation Practice's own website (Homepage, Docs). The maker can claim this listing to edit it.
Categories
Frequently asked questions
Does Koko need an internet connection?
Core listening, speaking, conversation and progress features are designed to run locally on the iPhone. App Store downloads and updates still require Apple services and an internet connection.
Does Koko upload voice or conversations?
No. Microphone audio, transcripts, conversations, generated responses and learning progress remain on the device.
Why might a response be incorrect?
Koko uses an on-device language model. Language models can make mistakes, invent information, mistranslate or produce awkward phrasing. Treat responses as practice material rather than verified facts or professional advice.
Can support recover progress?
No. Koko does not maintain a cloud account or receive local progress, so Prism Labs cannot view or restore it.
How do I delete Koko data?
Koko does not create an account on servers. To remove the app and its local data from an iPhone, choose Delete App in iOS rather than Offload App, which may preserve documents and data.
Which languages does Koko support?
Koko supports English, Spanish, French, Polish, German and Japanese. Available features may vary by language and app version.