Private Mind vs Eris.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Private Mind
This AI chatbot operates entirely offline, offering a private and secure space for writing assistance, idea generation, or conversation. Customize AI assistants and test local language models without needing an internet connection.
- Offline AI chatbot
- Private and secure conversations
- Customizable AI assistants
- Local language model testing
- No internet required
- No sign-ups or subscriptions
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Run open AI models like Llama, Gemma, and Qwen on your phone. Offline. Private. Free. No account, no tracking, no subscription. Powered by React Native ExecuTorch. Meet Private Mind, the AI assistant that never phones home. Every conversation runs entirely on your device, so it works in airplane mode, on a plane, or anywhere the internet can't reach. Why Private Mind? · 100% offline: no internet needed, chat anywhere · Total privacy: zero telemetry, your words never leave the phone · Chat with your documents: import PDF or TXT files and get answers with clickable citations, so you can verify every source · Model Hub: curated open models grouped by family, or import your own · Built-in benchmarks: see how fast each model runs on your hardware before you commit · Local speech-to-text: dictate prompts with Whisper, transcribed on-device · Make it yours: custom system prompts, chat search, conversation forking and export Models download once (about 1 to 3 GB each, best over Wi-Fi) and stay on your device. A modern phone with 4 GB+ RAM is recommended for larger models. Not sure? Run the built-in benchmark. Free and open source. Verify the code yourself: github.com/software-mansion-labs/private-mind Built by Software Mansion, core React Native contributors, on React Native ExecuTorch.
Eris.
Experience private AI conversations entirely on your device. This app offers offline access to multiple AI models, ensuring your data never leaves your iPhone or iPad. Enjoy fast, secure AI assistance without internet connectivity or subscriptions.
- 100% Private conversations
- No internet required
- Multiple AI models supported
- Optimized for Apple Silicon
- One-time download, use forever
- Dark Mode support
- Haptic feedback
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Eris brings the power of AI conversation to your iPhone and iPad while keeping your privacy intact. Unlike cloud-based AI assistants, Eris runs entirely on your device using Apple's cutting-edge MLX framework. KEY FEATURES: • 100% Private - All conversations stay on your device • No Internet Required - Chat with AI completely offline • Multiple AI Models - Choose from Llama, Qwen, DeepSeek, and more • Lightning Fast - Optimized for Apple Silicon performance • No Subscriptions - One-time download, use forever • Dark Mode Support - Easy on your eyes • Haptic Feedback - Tactile responses for better interaction SUPPORTED MODELS: • Llama 3.2 (1B, 3B) - Meta's efficient language models • Qwen 2.5 Series - Multilingual capabilities • DeepSeek R1 - Advanced reasoning • Gemma 2, Phi 3.5, Mistral - Various specialized models • Code Models - For programming assistance PRIVACY FIRST: Your conversations never leave your device. No cloud servers, no data collection, no tracking. What you say to Eris stays with Eris. REQUIREMENTS: • iPhone XS/XR or newer (A12 chip required) • iOS 17.6 or later • 2-8GB storage per model Perfect for users who want AI assistance without compromising privacy. Whether you're brainstorming ideas, getting help with code, or just having a conversation, Eris is your private AI companion. Note: First launch includes a one-time model download. Models are stored locally for offline use.
Screenshots
Verdict
The clearest difference is review sentiment: Eris. at 80% against Private Mind's 0%. Eris. also leads on rating (3.4 vs 2.3) and ratings volume (10 vs 3). 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. Neither carries in-app purchases, so what you see is what you pay.
Eris. holds the better App Store score, 3.4 against 2.3. Both are backed by a comparable volume of ratings — 3 and 10 respectively. Written reviews point the same way: 0% of Private Mind's written reviews are positive against 80% of Eris.'s.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Private Mind | Eris. |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) | 3.4 (10 ratings) — better |
| Positive reviews | 0.0% of reviews | 80.0% of reviews — better |
| Number of ratings | 3 | 10 — better |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 118 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | SOFTWARE MANSION S.A. | Ignacio Palacio |
Customer experience
Private Mind
Eris.
In-app purchases
Private Mind
No in-app purchases
Eris.
No in-app purchases








