Neutron AI vs Eris.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Neutron AI
Engage in conversations with custom AI personalities, generate images, analyze your surroundings with AI vision, and create AI-generated speech. Some features are free with no ads, while others have minimal ads.
- Custom AI personalities
- AI image generation
- AI vision for object identification and translation
- AI speech synthesis
- Ad-free AI texting
- Privacy-focused with no sign-up
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Engage in dynamic conversations with your own custom AI personalities, generate stunning images, explore the world around you with AI vision, and create AI generated speech—all in one powerful app. Key Features: AI Texting: Chat with custom AI personalities of your own creation, and save your conversations just like a text message inbox. Now entirely free with no ads! Image Generation: Bring your ideas to life with AI generated images based on your descriptions—perfect for art, concepts, or just for fun. AI Vision: Use AI to identify objects and analyze your surroundings, or translate languages on the go, adding a new layer of interaction with the world around you. AI Speech: Create natural-sounding AI generated speech, with various voice options to suit your needs. Free to Use: Texting and Vision are now entirely free with no ads, while Image and Speech generation are supported by minimal non-intrusive ads. Privacy & Security: Your data remains private and secure, with no sign-up required. Your information, conversations, and any content generated or shared in app are never stored, or used for advertisement purposes. Note: Internet connection required. Follow us on Twitter: @NeutronAI Support: support@haynestechgroup.com Website: https://www.haynestechgroup.com
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 Neutron AI's 0%. Eris. also leads on rating (4.3 vs 3.7) and ads (none vs shown). On price, ratings volume, update cadence 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, 4.3 against 3.7. Both are backed by a comparable volume of ratings — 6 and 6 respectively. Written reviews point the same way: 0% of Neutron AI'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 July 6, 2026 and July 4, 2026 respectively.
| Parameter | Neutron AI | Eris. |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (6 ratings) | 4.3 (6 ratings) — better |
| Positive reviews | 0.0% of reviews | 80.0% of reviews — better |
| Number of ratings | 6 | 6 |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 27 MB | 34 MB |
| Age rating | 12+ | 4+ |
| Developer | Haynes Technology Group LLC | Ignacio Palacio |
Customer experience
Neutron AI
Eris.
In-app purchases
Neutron AI
No in-app purchases
Eris.
No in-app purchases
