Arbiter vs AltLLM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Arbiter
This privacy-focused AI assistant operates entirely on your device, offering offline functionality. Choose from various open-source models to suit your needs, with all conversations securely stored locally. It's ideal for brainstorming, proofreading, and exploring AI capabilities without data collection.
- On-device AI processing
- Offline model execution
- Document summarization
- Privacy-focused design
- Multiple AI model selection
- Local data storage
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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.
AltLLM
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AltLLM puts the world's most powerful AI models at your fingertips -- all in one app. Switch between models instantly to find the best fit for any task. MULTI-MODEL AI CHAT - Reasoning models for complex problem-solving - Coding-optimized models for software development - Smart hybrid routing that picks the best model for your query - Web search built in for real-time information CRYPTO & BLOCKCHAIN INTELLIGENCE - 99+ specialized tools auto-injected into every conversation - Real-time token prices and market data - DeFi analytics and on-chain insights - Project research: tokenomics, team analysis, funding rounds - ERC-8004 agent registry integration POWERFUL FEATURES - Upload images for visual analysis - Voice input with speech-to-text - Conversation history and search - Dark mode support - Works on iPhone and iPad DEVELOPER TOOLS - OpenAI-compatible API endpoint - Create and manage API keys - Real-time usage analytics and billing history - Python and TypeScript SDK support - Drop-in replacement for existing OpenAI integrations FLEXIBLE PLANS - Free tier with access to multiple models - Subscription tiers with higher rate limits and premium models - Pay-as-you-go credit system -- only pay for what you use - Credits never expire ACCOUNT & SECURITY - Sign in with Apple for quick, private authentication - Google OAuth supported - Usage tracking with daily breakdowns by model Whether you're researching crypto markets, writing code, analyzing documents, or just having a conversation, AltLLM gives you the right AI model for every task. Get started for free. No credit card required.
Screenshots
Verdict
The clearest difference is iOS requirement: AltLLM at 15.0 against Arbiter's 18.4. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Arbiter sells 4 one-off in-app purchases and AltLLM sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Arbiter ships an update fortnightly, AltLLM every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Arbiter | AltLLM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (16 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Fortnightly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, Mac | iPhone, iPad, iPod — better |
| Requires iOS | 18.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 40 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Jordan Stone | Alt Research |
In-app purchases
Arbiter
- Small Tip$1.99
- Medium Tip$4.99
- Large Tip$9.99
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- Extra Large Tip$19.99
AltLLM
- Basic$25.99
- 39.99 Credits$39.99
- Power$199.99









