It supports GGUF & MLX models or connect to OpenAI-compatible servers. Free Plan includes most features like local models, iCloud Sync, Markdown conversion and 28+ tools.
Privacy AI is a fully offline AI client. It runs entirely on-device with local code and never contacts any server unless you explicitly configure a remote model. It has "no backend servers of its own", which allows it to guarantee strong privacy. Any network activity is fully transparent: you can inspect every request, response, and SSE frame through the built-in "Protocol Inspector", or capture traffic via "mitmproxy" for independent verification.
In the new version, it includes a powerful "Reader" with long-document conversation support. The AI automatically indexes document content, enabling accurate, contextual chat across large files without manual chunking.
It also supports OpenAI, OpenAI Responses, Claude, OpenRouter, and HuggingFace protocols with full multimodal input, tool calling, and "advanced reasoning" features. This includes "interleaved thinking" across providers (DeepSeek, Claude, Gemini, Kimi, MiniMax, OpenRouter) to preserve reasoning continuity across multi-turn chats and tool calls. The Protocol Inspector logs all protocols—OpenAI, Claude, OpenRouter, and Responses API—making debugging and auditing fully transparent.
A generous "Free Plan" includes offline GGUF/MLX/Apple Foundation models, iCloud sync, Markdown conversion, and "28+ built-in tools". Cloud models, the "MCP Marketplace", and custom API providers require a subscription.
- Why Privacy AI
Most AI apps lock you into a single service. Privacy AI gives you control: run models fully offline, self-host for compliance, or use cloud APIs when needed. You decide where execution happens, how data flows, and when tools are invoked.
- Who It’s For
• Developers & infra builders (GGUF, MLX, OpenRouter, custom APIs)
• Professionals in law, healthcare, finance, research
• Power users building automation workflows
• Teams requiring compliance or internal-only AI
- What It Does
* Run Any Model, Anywhere
• Offline on iPhone, iPad, and Mac
• Load GGUF/MLX models from HuggingFace or iCloud
• Connect to OpenAI, Anthropic, Gemini, DeepSeek, or self-hosted servers
• Switch local and remote models mid-chat without losing context
• Supports Apple’s on-device Foundation Model (iOS 26)
* Advanced Reasoning Control
• "Interleaved thinking" for supported reasoning models
• "Rethink" button to continue reasoning without re-running tools
• "Min-P sampling" for finer control over output focus vs diversity
* Use Tools Seamlessly
• Full MCP with integrated Marketplace
• Call tools (search, stocks, arXiv, HealthKit, JavaScript) offline or remote
• Inspect, replay, and debug tool calls directly in chat
* Automate Privately
• Siri, Shortcuts, and Share Extension integration
• Offline TTS and transcription
• OpenAI protocol TTS (gpt-4o-tts, gpt-4o-mini-tts)
* Files On-Device
• Convert PDFs, Office files, EPUB, HTML, YouTube, audio
• OCR and clean Markdown conversion
• Read "vCard (.vcf)" and "iCalendar (.ics)" files
• Export to Markdown, PDF, HTML, EPUB, or JSON
* Images & Editing
• Generate images locally or via OpenRouter (e.g. Gemini 2.5 Flash)
• Supports gpt-image-1 and FLUX.1-dev
• Annotate with Apple Pencil or touch
* Content & Reading
• Retrieve and convert "X.com article URLs" into clean Markdown
• Optimized streaming Markdown rendering for long responses
* Control & Extend
• “Natural Talk” voice UI
• Live token and context usage indicator
• Custom prompts, tools, and preferences
• iCloud sync for models, chats, and settings
* Built for Apple
• Optimized for M-series Macs and iPad Pro
• Requires iOS 18.6+
• Deep Siri, Shortcuts, and Share Extension integration
- No Account. No Surprises.
No forced sign-ups. Choose local, self-hosted, or cloud.
Your models. Your device. Your data.
Terms of Use: https://privacyai.acmeup.com/docs/policy/tos.html
Privacy Policy: https://privacyai.acmeup.com/docs/policy/privacy.html
I've tried just about every AI client on the App Store, and this is the one. I stumbled on this app when it had zero downloads and found an absolute gem. This isn't just another chat wrapper; it's a full-on AI agent for your phone. You can plug in APIs for basically any model (Gemini, DeepSeek, etc.) and it has tools that let the AI actually do things—manage your calendar, get directions, search your contacts, the list goes on. The "Super Siri" feature that lets you use your own AI model with a voice command is a complete game-changer.Now, full disclosure, the app is BRAND new, so it's a little rough around the edges. You might hit a few quirks or a random crash here and there as the developer irons things out. But honestly, that's totally expected for something this ambitious. The potential here is just off the charts.Giving this 5 stars for the vision alone and for what it can already do.
Developer Response
Thank you for trying Privacy AI when it only had a few downloads. It means a lot that you see what we’re building, not just another chat app, but a full AI workspace and agent for mobile devices. We’re glad you tried features like broad API support and the “Super Siri” voice command. Both are designed to put you in control of your AI on your own terms. Our philosophy is simple: AI should run under users’ control, free from Big Tech lock-in, and work exactly the way users need it to. The app is still new and not perfect. But we’re shipping fast and improving every week. Thank you for the five stars and for recognizing the vision. Reviews like yours help more people discover Privacy AI and motivate us to make it even better.
Features
- Rethink Button
New "Rethink" lets the AI continue reasoning without re-running tool calls—useful for exploring alternatives or extending analysis while avoiding repeated tool costs.
- Min-P Sampling Parameter Support
Added "Min-P (Minimum Probability)" for compatible providers (including OpenRouter and DeepSeek). Min-P filters tokens by a minimum probability threshold relative to the most likely token. Higher values (e.g. 0.1) are more focused; lower values (e.g. 0.01) are more diverse.
- Interleaved Thinking Support
Added "interleaved thinking (reasoning expansion)" for advanced reasoning models across providers, including DeepSeek (deepseek-reasoner), OpenRouter (minimax-m2, deepseek-v3.2, gpt-5.2, claude-opus-4, kimi-k2-thinking), MiniMax (minimax-m2), Kimi/Moonshot (kimi-k2-thinking), and Google Gemini (gemini-3-pro-preview). This preserves reasoning across multi-turn conversations and tool calls for better continuity and planning.
- Claude API Interleaved Thinking Support
Claude API now support native interleaved thinking for CLAUDE 4+ conversations.
- VCard and ICS Support
Added support to read and convert ".vcf" and ".ics" into structured Markdown, including contact fields and calendar items (events, tasks, locations, attendees, reminders).
Improvements
- iOS 26.2 Platform Update
Updated build target to "iOS 26.2" for latest platform optimizations, security updates, and improved stability.
- Improved Tool Call Display
Multi-tool-call messages now auto collapse/expand. If more than 3 tool calls exist, only the latest 3 show by default, with a control to expand and view all.
- Consistent Citation Card
Citation preview cards in Sources now use a consistent size (160pt × 160pt) for a cleaner layout.
- llama.cpp Engine Upgrade (b7332 to b7402)
Upgraded local inference engine (+67 commits): optimized Metal backend for iOS Mamba/SSM, improved performance and threadpool stability, improved CLIP handling, added vision model support (Qwen3VL, KimiVL).
- Tabbed Remote Model Configuration
Remote Model configuration now uses tabs: "Model", "Pricing", and "Settings".
- Default Model Setting
Moved default model selection from Siri settings to system settings. Updated settings views with a more unified theme.
- Chat List Swipe Action
Added bottom padding so the floating action button doesn’t block swipe actions on the last chat.
- Quick Ask Keyboard Handling
Improved keyboard behavior: tap the response area to dismiss, and refined the input field sizing for more consistent interaction.
- Redesigned Sharing System
Redesigned share extension to support more file types, including "ICS" and "vCard".
- Article Retrieval from X
Added support to retrieve and convert "X.com" article URLs into clean Markdown.
- Enhanced Tool Search with Improved UI
Tool search now matches tool names and descriptions. Tool toggles include short, human-friendly usage descriptions.
- Markdown Rendering Optimization
Optimized streaming Markdown rendering by normalizing list indentation and cleaning formatting during streaming.
Bug Fixes
- Image Sharing Restored
Fixed image sharing to Privacy AI from other apps.
- Clear Chat Messages
Fixed clearing all messages in a chat.
- OpenAI API Compliance
Fixed `parallel_tool_call` being sent to OpenAI when no tools were included; it’s now only sent when tools are used.
- Markdown Theme
Fixed Markdown color scheme picker defaulting to light mode; it now follows the current system appearance.
- Reader Context Menu Actions
Fixed Reader context menu actions (Copy, Select & Edit, Share, Read Aloud) after the cache migration.
- Whisper Model Retry Failure
Fixed failures when retrying Whisper downloads by cleaning partial download folders before retry.
- Duplicated Model Settings
Fixed saving changes to duplicated remote models; updates now persist and show immediately.
Version 1.5.4
The developer, AcmeUp Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Identifiers
Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Identifiers
Usage Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
Larger Text
Dark Interface
Differentiate Without Color Alone
Sufficient Contrast
Information
Seller
AcmeUp Inc.
Size
1.9 GB
Category
Productivity
Compatibility
Requires iOS 18.6 or later.
iPhone Requires iOS 18.6 or later.
iPad Requires iPadOS 18.6 or later.
Mac Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.