Cortis: Offline On-Device AI

neron

In-app purchases

About this app

AI chat that runs on your phone, with no internet needed once a model is downloaded.

Cortis is an on-device AI chat app. It runs a local language model (LLM) directly on your phone, so your typed chats are processed on your device. There is no account to create and there are no ads.

Download a model once, then chat offline: on a plane, on the subway, or anywhere your signal drops. Once a model is on your phone, Cortis works without a connection.

WHAT YOU GET
• On-device AI chat: your typed chats are processed on your phone
• Offline AI chat: works without internet once a model is downloaded
• Local LLMs on your device: pick the model that fits your phone, smaller ones are lighter and faster, larger ones give stronger answers
• No account needed, no ads
• Models are downloaded from within the app

FREE PLAN AND PRO
Cortis has a free plan with smaller models. Cortis Pro is a paid upgrade that unlocks larger models and the performance view. Pro is available as an auto-renewing subscription or a one-time lifetime purchase; which options you see depends on your app version and country. Options, prices and any free trial are shown in the app before you buy.

Subscriptions renew automatically until you cancel. You can manage or cancel them at any time in Google Play under Payments & subscriptions > Subscriptions.

Privacy Policy: https://neron.app/products/cortis/privacy
Terms of Use: https://neron.app/products/cortis/terms

What’s new

- Clearer model download: a "Verifying download" step with progress and a Cancel option.
- Fixed onboarding buttons that did not respond to taps.
- Devices with limited memory now get a clear message and can continue without a model.
- Clearer message when restoring purchases.
- Translation and spelling fixes.