# Atomic Chat: Private Local AI — Private & Offline AI Assistant > Private, offline AI assistant that runs locally on your iPhone or iPad. (iPhone/iPad app by Atomic Mail.) - Source: https://appshunter.io/ios/app/atomic-chat-private-local-ai/id6761720226 (this page in markdown: same URL + `.md`) - Developer: [Atomic Mail](https://appshunter.io/developer/1831027051) - Category: Productivity, Utilities - Price: Free - Rating: 4.50/5 from 8 App Store ratings · 4 written reviews indexed - Age rating: 9+ - Requires: iOS 16.2 · 81 MB - Languages: American English - Released: 2026-04-29 - Data updated: 2026-08-21 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/atomic-chat-private-local-ai/id6761720226/reviews.md ## What is Atomic Chat? Atomic Chat is a private AI assistant that runs entirely on your iPhone or iPad. No accounts, no sign-ups, no cloud servers. Every conversation stays on your device. WHY ATOMIC CHAT - 100% on-device AI — models run locally using your device's Neural Engine - Complete privacy — your chats never leave your iPhone - Works offline — no internet required after initial model download - No account needed — open the app and start chatting - Free to use — no subscriptions, no hidden fees WHAT YOU CAN DO - Ask questions and get instant answers - Brainstorm ideas and get creative suggestions - Draft emails, messages, and documents - Summarize text and extract key points - Translate between languages - Get help with writing, coding, and learning - Have natural, flowing conversations on any topic CHOOSE YOUR MODEL Pick from a curated selection of open-source language models optimized for mobile. Download once, use forever. Swap models anytime based on your needs — smaller models for speed, larger models for depth. BUILT FOR PRIVACY Atomic Chat processes everything locally on your device. Your prompts, your conversations, and your data never touch a server. There is no telemetry, no analytics tracking your conversations, and no third-party AI providers. OPTIMIZED FOR APPLE SILICON Atomic Chat is built to take full advantage of modern iPhone and iPad hardware, delivering fast response times and efficient battery usage through Apple's Neural Engine. PERFECT FOR - Privacy-conscious users who don't want their conversations in the cloud - Travelers and commuters who need AI without internet - Professionals handling sensitive information - Anyone curious about running AI on their own device Atomic Chat puts the power of modern AI in your pocket — without the compromises of cloud services. Download, pick a model, and start chatting. Your data is yours. ## Key features - 100% on-device AI processing - Complete privacy, no cloud servers - Offline functionality - No account or sign-up required - Choose from curated language models - Optimized for Apple Silicon ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/atomic-chat-private-local-ai/id6761720226/reviews.md ### 4/5 — A baby LM Studio in your pocket *2026-08-11* Useful for running and interacting with small local models in the absence of WiFi/cell-data connectivity. Interface needs work: iPhone SE2//SE3 is still supported by Apple, but the Atomic Chat interface does not properly adapt to the shorter screen lengths on these phones. Hopefully a fix for that is coming soon. ### 5/5 — Great App, and a Definite Recommendation for Local AI Users. *2026-06-24* A suggestion from me would be that you add a TTS feature like Kokoro TTS from Hexgrad. Thank in advance. **Developer response:** Hi! Really glad you're enjoying the app and thanks for the feedback! We've added the TTS feature to our backlog - will discuss it with the team ### 5/5 — upload models manually *2026-06-17* pls add function to upload models manually **Developer response:** Hello! Thanks for the feedback Grabbed it, we're on it ### 4/5 — Gemma 4 E4B removed *2026-06-01* why was gemma 4 E4B removed in the recent update to this app edit: I’m using an iPhone 17 Pro edit2: also would be nice to see quantization options for models **Developer response:** Hey Buzzard, thanks so much for the review - feedback like this really helps us out! You're totally right and this one's on us. In the last update we added a filter that matches each model's requirements against your device's specs and hides the ones that might crash - and Gemma E4B got caught up in it even though it was running just fine for you. We're already fixing it - moving to a "Recommended" list plus full access to every model, so nothing gets pulled out from under you. Quick question: which device are you on? That'll help us get the cutoffs right. Thanks again for flagging it! ## Frequently asked questions about Atomic Chat ### What is Atomic Chat? Atomic Chat is a private AI assistant that runs entirely on your iPhone or iPad. It offers 100% on-device AI processing, meaning your conversations never leave your device and it works offline. ### Does Atomic Chat require an internet connection? No, Atomic Chat works offline after the initial model download. This makes it ideal for travelers or users in areas with limited internet access. ### Is Atomic Chat free to use? Yes, Atomic Chat is free to use with no subscriptions or hidden fees. The app is available for free and does not have in-app purchases. ### What kind of AI models does Atomic Chat use? Atomic Chat uses a curated selection of open-source language models optimized for mobile. You can choose and swap models based on your needs for speed or depth. ### Is my data safe with Atomic Chat? Atomic Chat is built for privacy. All processing happens locally on your device, so your prompts, conversations, and data never touch a server. There is no telemetry or analytics tracking. ### What devices is Atomic Chat compatible with? Atomic Chat is optimized for modern iPhone and iPad hardware. It is supported on iPhone and iPod devices. ### How often is Atomic Chat updated? The latest version of Atomic Chat is 1.5, which was last updated on June 23, 2026. This indicates regular updates to improve functionality and performance. ### What age rating does Atomic Chat have? Atomic Chat has an age rating of 9+, making it suitable for younger users and adults alike. This suggests content is generally appropriate for this age group. ## Version history (last 5 releases) ### 1.8 — 2026-08-14 • Shipped LFM2.5-VL-3B from Liquid AI: a lightweight vision-language model that reads screens, documents, and the physical world • Built in free web search powered by DuckDuckGo • Added support for OpenAI, Anthropic, OpenRouter, xAI, Mistral, DeepSeek, Perplexity and MiniMax as cloud providers. API keys are stored securely in the system keychain • Wired up custom providers over URL: any OpenAI-compatible endpoint on your LAN or tunneled in with ngrok, Cloudflare or Tailscale • Exposed a thinking toggle for manually imported GGUF models • Fixed a bunch of bugs and cleaned up the UI ### 1.7 — 2026-08-05 Added LFM2.5-2.6B — a small agentic model that runs fully on-device. it plans, calls tools and works through multi-step tasks, nothing leaves your phone. - 128K context - Hybrid architecture, built for on-device speed - Light on battery, good for long sessions Plus various bug fixes and performance improvements ### 1.6 — 2026-07-15 Added Bonsai 27B: the first 27B-class model to run on a phone Bonsai 27B is the new multimodal flagship of the Bonsai family. Based on Qwen3.6 27B, it brings a new capability tier to local AI: multi-step reasoning, structured tool use, long-context workflows, and coherent agentic loops. ### 1.5 — 2026-06-23 • Added manual upload for GGUF models • Added notifications when there’s not enough memory to download a model • Fixed vision features for Qwen and Gemma • Model downloads now save progress and resume after connection issues • Added correct links to rate the app in the stores • 10+ UI and stability fixes ### 1.4 — 2026-06-10 • Added Gemma 4 QAT models • Added copy and edit buttons for your sent messages • Added a button to turn reasoning on / off • Fixed reasoning streaming in the chat • Fixed markdown preview bugs • Fixed 5 UI bugs ## More apps by Atomic Mail - [Atomic Mail: Private Email](https://appshunter.io/ios/app/atomic-mail-private-email/id6749544617) - [Atomic Hermes](https://appshunter.io/ios/app/atomic-hermes/id6759154616) All apps by Atomic Mail: https://appshunter.io/developer/1831027051 ## Related topics [aipromptnote](https://appshunter.io/ios/topics/aipromptnote) · [atomic mail](https://appshunter.io/ios/topics/atomic-mail) · [aside ai chat](https://appshunter.io/ios/topics/aside-ai-chat) · [altbot lite](https://appshunter.io/ios/topics/altbot-lite) · [atomic hermes](https://appshunter.io/ios/topics/atomic-hermes) · [zoia ai](https://appshunter.io/ios/topics/zoia-ai) --- *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 2026-08-21.*