Zima: Offline AI

Zima is a private AI assistant that runs entirely on your Android device. Once the model is downloaded on first launch, everything works fully offline. No cloud. No tracking. Every conversation stays on your phone.

Pay once. Own it forever. No subscription, no account, no strings.

Choose from three on-device AI models:
- Nano — compact and fast, works on most devices
- Plus — powerful 4B model for devices with 5.5 GB+ RAM (2.7 GB)
- Pro — smartest model, 9B parameters for devices with 6 GB+ RAM (4.7 GB)

Free tier:
- Nano model, fully on-device
- 30 messages per day
- Your 3 most recent conversations
- Helpful personality
- No account, no tracking, no ads

Unlock Everything ($4.99 one-time):
- All AI models (Plus + Pro)
- Unlimited messages
- Full conversation history — kept forever
- 8 personalities: Helpful, Butler, Pessimist, Intern, Detective, Bard, Theorist, Surfer
- Custom system prompt for power users
- One payment, yours for life

Features:
- Fully offline after the one-time model download
- Full conversation history saved locally
- Stop generation mid-response anytime
- Context window indicator shows how much room is left
- Regenerate responses with one tap
- Pick the AI's personality to change its voice
- Download progress with cancel and resume
- Material 3 design, fully themed for light and dark mode

Privacy first:
- No account required
- No analytics or tracking
- No data collection of any kind
- Every conversation lives only on your device

Optional tip jar if you love the app and want to support development. No features unlocked by tips — just a way to say thanks.

Built by Zima Logistics — a small team making apps we actually want to use.