Anvil: Private & Offline AI
Free planAIJapanese UIEnglish UIIndie
Overview
Private AI that runs on your iPhone, even offline. I'm Nathan Cheng, developer of Anvil. Anvil is a private AI assistant that runs on your iPhone. Chat offline, translate a sign from a photo, pull points from a PDF, transcribe meetings, and create images. No account, no ads, chats stay on your phone. Requires iPhone 15 Pro or newer.
A note from the maker
I'm Nathan Cheng, the developer of Anvil. I built it because I wanted an AI on the iPhone that protects personal information and can be used with confidence even where there is no signal. Conversations stay on the device, and everyday helpful features are brought together in one app.
Machine-translated
Facts from official sources
Key features
- Offline AI chat
- Translate signs from photos
- Extract key points from PDFs
- Transcribe meetings
- Generate images
- Chats stored on your iPhone
Platforms
iOS
Pricing
| Pricing type | Free + paid |
|---|---|
| Free plan | Yes |
| Price | Free plan (10 chat messages a day). Anvil Pro is $4.99/month or a $29.99 lifetime purchase (App Store) (checked 2026-11-14) |
Developer
Nathan Cheng（Anvil Industries Inc.） · https://anvilai.com/
| Web version | No |
|---|---|
| Languages | Japanese / English (Declared by the developer) |
| Uses AI | Yes |
| AI technology | On-device offline AI model (Anvil Core) |
| Indie / small team | Yes |
| Released | 2026-10-30 (App Store) |