Arbiter vs OpenTime

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 - Apple Intelligence Support: Use Apple’s on-device Foundation Model on supported devices without downloading another model - Local Image Generation: Create images directly on your device with Stable Diffusion - 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 - Expanded File Support: Work with DOCX, RTF, HTML, Markdown, CSV, JSON, code, PDF, and text files - Bring Your Own Model: Search Hugging Face, download compatible models, or import supported GGUF files and MLX folders already on your device - MCP Tools: Connect to compatible MCP servers, review tool arguments, and run tools when needed - 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 - Advanced Model Controls: Adjust context size, maximum response length, temperature, Top-P, and Top-K - Local Model Benchmarking: Measure model quality, speed, response time, and memory use directly on your device - 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.

Quickly see when you're free. Open Time reads your device calendars and shows your open time slots. No accounts, no servers, no tracking. FEATURES - View free and busy slots for today, tomorrow, or any date range - Choose which calendars count: exclude holidays, sports schedules, or shared calendars, and every list, widget, and share reflects only the calendars you pick - Slot duration picker (15, 30, or 60 minutes). Chips subdivide your free blocks at the chosen interval - Long-press any chip for Open in Calendar, Create Event Here, or Copy Time - Long-press any day name to Share or Copy that day's availability to anywhere (Messages, Mail, Notes) - Light, dark, or system appearance with an in-app picker - Pull to refresh, and availability refreshes automatically after you create or edit an event - Show or hide busy events - Toggle weekends on or off - This Week, Next Week, and Next 14 Days quick picks - Custom date range picker - Home screen widgets (small and medium). Tap any chip to jump straight to that slot in the app - Live Activities and Dynamic Island for real-time free/busy on your lock screen - Apple Intelligence query bar on supported devices: type "tomorrow afternoon for 30 min" or "any hour Friday afternoon" and get the matching slots - Siri and Shortcuts: try "What's my availability in Open Time" or "When am I free in Open Time" - Apple Watch companion to check your week from your wrist - Share Extension to drop your availability into any app from the share sheet - iMessage app to pick days and send your availability without leaving the conversation PRIVACY FIRST Your calendar data stays on your device. No accounts. No analytics. No third-party servers. Zero data collection. Open Time uses Apple's EventKit to read your calendars locally. Nothing ever leaves your device. Perfect for freelancers, consultants, and anyone who needs to quickly share when they're available.