Arbiter - Local AI Chat

Jordan Stone · Productivity

4.9 16 ratings Free

Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Aug 29, 2026
New version 0.2.07 → 0.2.08

- Redesigned model browser with smarter recommendations - Search and pin conversations in chat history - Safer connections with access-code protection - Better stability and performance throughout the app

Aug 26, 2026
New version 0.2.04 → 0.2.07

Ratings breakdown · US

The star breakdown behind this app's rating in this storefront.

5★ 94% 15
4★ 6% 1
3★ 0% 0
2★ 0% 0
1★ 0% 0

Screenshots

About

Arbiter is a privacy-first offline AI assistant that runs on your device. Choose from lightweight open-source models like Gemma, Llama, DeepSeek, Qwen, and Mistral, or connect to larger models running on your PC or Mac over your local network. You can also connect to Arbiter for Mac when it is serving a local model on your network. There are no accounts, servers, or data collection. All your conversations are stored securely on your device, under your control. Key Features: - On-Device AI: Download and run models locally on your iPhone - Local Network Models: Connect to more powerful models running on your PC or Mac through tools like LM Studio, Ollama, or Arbiter for Mac - Visual AI Support: Upload images or take photos in-app to use with MLX-powered visual models - Document & File Uploads: Summarize files and extract key insights - Optional Web Search: Access up-to-date information when needed, while keeping your core experience private and local - Smart Chat Suggestions: Context-aware suggestions tailored to your selected model and role - Personalization: Customize system prompts and model settings for a more tailored experience - Privacy by Design: Your conversations and data never leave your device unless you choose to enable web search or connect to a local network model - Model Flexibility: Choose from multiple open-source AI models to balance speed, accuracy, and memory use - Improved Reliability: Smarter context handling and enhanced error management for a more stable experience - No Hidden Costs: Avoid expensive cloud fees with local and local-network processing Whether you want to brainstorm, code, proofread text, analyze images, summarize files, search the web, or experiment with the latest open-source AI, Arbiter makes advanced AI models accessible while keeping your data in your hands. Device Requirements: For smooth on-device performance, Arbiter is recommended for iPhone 13 Pro or later, or devices with at least 6GB RAM. Older devices may experience memory issues or crashes.

What's new · 0.2.08

- Redesigned model browser with smarter recommendations - Search and pin conversations in chat history - Safer connections with access-code protection - Better stability and performance throughout the app

Details

DeveloperJordan Stone
ReleasedOct 2025
UpdatedJul 2026
Version0.2.08
Size37.4 MB
RequiresiOS 18.4 or later
Age rating4+
LanguagesEnglish
PriceFree
Categories Productivity
Bundle IDcom.Stone.Arbiter