Vector Space AI vs Eris.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vector Space AI
This app offers a fast, private AI companion that runs locally on your device, providing instant responses for writing, brainstorming, and coding. It also allows seamless switching to cloud-based AI for more advanced queries.
- Runs locally on device
- Optional ChatGPT API connection
- Modern and clean interface
- Instant response times
- Complete user data privacy
- Seamless mode switching
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Chat with FREE, FAST and POWERFUL AI that runs LOCALLY on your iPhone Meet your new AI companion that’s always available — no cloud, no lag, just pure speed. Our advanced local AI engine runs directly on your iPhone, giving you instant responses, full privacy, and offline intelligence. Whether you’re writing, brainstorming, translating, or coding — everything happens right on your device. And when you want to connect to the cloud, simply switch to ChatGPT API mode for even more powerful, up-to-date answers. Key Features: - Runs Locally — Experience lightning-fast chat without internet or server delay. - Optionally, Connect to by ChatGPT API — Access the world’s smartest AI whenever you want. - Beautiful Modern Design — A clean, elegant interface built for clarity and focus. - Instant Responses — No waiting. No spinning wheels. Just smooth conversation. - Completely Private — Your data stays on your device. Nothing leaves your phone. - Seamless Mode Switching — Toggle between local AI and ChatGPT in one tap. Why You’ll Love It: Because it’s your AI — fast, powerful, private, and beautifully crafted. Talk, create, think, and explore ideas anywhere — even offline. Download now and experience the future of AI — FAST. PRIVATE. BEAUTIFUL. LOCAL.
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 update cadence: Vector Space AI at every 4 days against Eris.'s every 2 weeks. Vector Space AI also leads on review sentiment (100% vs 80%). On price, ads, in-app purchases and monetization model 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.
Vector Space AI ships an update every 4 days, Eris. every 2 weeks. The most recent releases landed on September 7, 2026 and July 4, 2026 respectively.
| Parameter | Vector Space AI | Eris. |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (6 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 80.0% of reviews |
| Number of ratings | — | 6 — better |
| Update frequency | Every 4 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 34 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Voila Tech K.K | Ignacio Palacio |
Customer experience
Vector Space AI
Eris.
In-app purchases
Vector Space AI
No in-app purchases
Eris.
No in-app purchases









