# Ai2 OLMoE vs Eris.

The clearest difference is rating: Ai2 OLMoE at 4.9 against Eris.'s 4.3. Eris.'s advantage is update cadence (every 2 weeks vs every 2 months). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ai2 OLMoE holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 15 and 6 respectively. Written reviews complicate that: 78% of Ai2 OLMoE's written reviews are positive against 80% of Eris.'s, so the app with the better star average is not the one people write more warmly about.

Ai2 OLMoE ships an update every 2 months, Eris. every 2 weeks. The most recent releases landed on July 6, 2026 and July 4, 2026 respectively.

## The numbers

| Metric | Ai2 OLMoE | Eris. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (15 ratings)](https://appshunter.io/ios/app/ai2-olmoe/id6738533815/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/eris/id6747496749/reviews) |
| Number of ratings | **15** | 6 |
| Positive reviews | 77.8% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 7 MB | 34 MB |
| Requires iOS | **17.5** | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [THE ALLEN INSTITUTE FOR ARTIFICIAL INTELLIGENCE](https://appshunter.io/developer/1781129223) | [Ignacio Palacio](https://appshunter.io/developer/1773333920) |

## What reviewers say

### Ai2 OLMoE

[App page](https://appshunter.io/ios/app/ai2-olmoe/id6738533815)

Explore and improve on-device AI models with this open-source tool. It allows developers to prototype AI experiences locally without cloud connectivity, ensuring complete user privacy. Researchers can test and integrate models directly on their devices.

**Highlights:** On-device AI model exploration, Prototype AI experiences locally, Open-source codebase, No cloud connectivity required, Fully private interactions, Shareable conversation output

**In-app purchases:** none


### Eris.

[App page](https://appshunter.io/ios/app/eris/id6747496749)

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.

**Highlights:** 100% Private conversations, No internet required, Multiple AI models supported, Optimized for Apple Silicon, One-time download, use forever, Dark Mode support, Haptic feedback

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ai2 OLMoE free?

Ai2 OLMoE is free to download, with no in-app purchases.

### Is Eris. free?

Eris. is free to download, with no in-app purchases.

### Which has better reviews, Ai2 OLMoE or Eris.?

Ai2 OLMoE is rated higher. Ai2 OLMoE averages 4.9 out of 5 from 15 ratings, while Eris. averages 4.3 from 6 ratings.

### Do Ai2 OLMoE or Eris. have ads?

Neither Ai2 OLMoE nor Eris. shows ads.

### Which is updated more often, Ai2 OLMoE or Eris.?

Ai2 OLMoE ships an update every 2 months, and Eris. every 2 weeks. Most recently, Ai2 OLMoE was updated on July 6, 2026 and Eris. on July 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*