# Foundation-Chat — On-Device AI Chat

> On-device AI chat app for private, offline conversations. (iPhone/iPad app by Sagar Desai.)

- Source: https://appshunter.io/ios/app/foundation-chat/id6757838092 (this page in markdown: same URL + `.md`)
- Developer: [Sagar Desai](https://appshunter.io/developer/1825946798)
- Category: Productivity
- Price: Free
- Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.0 · 8 MB
- Languages: English
- Released: 2026-02-24
- Data updated: 2026-06-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/foundation-chat/id6757838092/reviews.md

## What is Foundation?

FoundationChat: Intelligent Conversations, Completely Private
Experience AI without compromising your privacy. FoundationChat runs entirely on your iPhone or iPad—no internet required, no data sent to servers. Uses Apple’s on-device Intelligence or Cactus open models.

PRIVACY FIRST
100% on-device processing—no ChatGPT, OpenAI, or third-party AI
Zero data collection—conversations never leave your device
No account, login, or tracking

FEATURES
Natural conversation powered by on-device AI
Context-aware responses
Multiple conversation threads
Clean SwiftUI interface
Works offline with instant responses
Unlimited chat sessions

REQUIREMENTS
iOS 26.0 or later
Apple Intelligence: iPhone 15 Pro+, iPhone 16+, or iPad with M1+ (enable in Settings)
Cactus: iPhone 13 Pro and other devices with 4GB+ RAM (download a model in-app)

WHY FOUNDATIONCHAT?
Unlike cloud-based chatbots, FoundationChat keeps everything local. Your questions and conversations stay on your device. Ideal for brainstorming, writing help, learning, and any task where privacy matters.
Download FoundationChat for truly private AI conversations.

## Key features

- 100% on-device AI processing
- Zero data collection
- Works offline
- Multiple conversation threads
- Clean SwiftUI interface
- Unlimited chat sessions

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/foundation-chat/id6757838092/reviews.md

### 1/5 — Unable to download oss models

*2026-02-27*

Downloads aren’t functioning properly and there appears to be no way to directly contact developer.

## Frequently asked questions about Foundation

### Does Foundation-Chat have ads?

No, Foundation-Chat is completely ad-free. As it is a free application with no in-app purchases or advertisements, users can enjoy an uninterrupted experience.

### What devices are compatible with Foundation-Chat?

Foundation-Chat is compatible with iPhones and iPads running iOS 26.0 or later. Specific models require Apple Intelligence (iPhone 15 Pro+, iPhone 16+, or M1+ iPad) or can run Cactus models (iPhone 13 Pro and other devices with 4GB+ RAM).

### How does Foundation-Chat ensure privacy?

Foundation-Chat prioritizes privacy by processing all AI conversations entirely on your device. No data is collected, sent to servers, or shared with third parties, and no account or login is required.

### Can I use Foundation-Chat without an internet connection?

Yes, Foundation-Chat is designed to work offline. All AI processing happens on your device, allowing for instant responses and conversations even without an internet connection.

### What AI models does Foundation-Chat use?

Foundation-Chat utilizes Apple's on-device Intelligence for compatible devices or the open-source Cactus models, which can be downloaded within the app for other supported devices.

### How often is Foundation-Chat updated?

The latest version of Foundation-Chat is 1.03, and it was last updated on May 18, 2026. Updates typically focus on improving performance, adding new features, and ensuring compatibility with the latest iOS versions.

### What is the user sentiment for Foundation-Chat?

Based on the available data, Foundation-Chat has a rating of 1.0 stars from 1 rating. Further user feedback would be needed to determine broader sentiment.

### Is Foundation-Chat suitable for children?

Foundation-Chat has an age rating of 4+, making it suitable for younger users. Its focus on privacy and on-device processing also ensures a safe environment for all users.

## Version history (last 5 releases)

### 1.06 — 2026-06-12

Local voice chat is here:
- Record from the composer and have your message transcribed on device.
- Download Moonshine Base for private local speech-to-text.
- Audio transcripts are saved with messages and can be expanded in chat.
- Replies can be spoken aloud after a voice prompt.
- Improved Cactus model selection, context limits, and prompt-cache handling for more reliable first responses.

### 1.04 — 2026-05-20

This update improves ride sharing for larger exports. You can now more easily save full ride videos to Files, use AirDrop or cloud storage links, and create shareable versions for friends, family, or social posts. We’ve also polished the export flow to make sharing smoother and more reliable.

### 1.03 — 2026-05-18

This release refines the chat composer with a cleaner layout, improved attachment and action controls, and better spacing around the input area. Sent messages now appear immediately before model warm-up completes, making first sends feel more responsive and avoiding awkward empty-state transitions.

### 1.01 — 2026-04-20

• New & updated downloadable models — Expanded lineup of on-device weights you can pull in and run locally, with clearer choices in model management.
• Stronger local inference — Improvements to the on-device inference engine for loading, running, and switching models more reliably.
• Downloads & setup — Smoother model downloads and fewer rough edges when adding or replacing models.
• Reliability — Better behavior with large models and long, streaming replies, including more dependable saving while a response is still generating.
• Polish — Bug fixes and small UI improvements.

### 1.0 — 2026-02-24

No release notes.

## More apps by Sagar Desai

- [Flight Agent](https://appshunter.io/ios/app/flight-agent/id6748482199)
- [AtlasCam](https://appshunter.io/ios/app/atlascam/id6762493147)

All apps by Sagar Desai: https://appshunter.io/developer/1825946798

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-21.*