# OnDevice vs Astra Shell

The clearest difference is update cadence: OnDevice at every 3 days against Astra Shell's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

OnDevice ships an update every 3 days, Astra Shell every 4 weeks. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | OnDevice | Astra Shell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ondevice-local-ai-studio/id6770114399/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 weeks |
| Monetization | Free | — |
| Size | 194 MB | 19 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [MESUT CAN YAGCI](https://appshunter.io/developer/1878989701) | [玥 熊](https://appshunter.io/developer/6780204409) |

## What reviewers say

### OnDevice

[App page](https://appshunter.io/ios/app/ondevice-local-ai-studio/id6770114399)

This app provides a local AI workbench for your iPhone, running open-source language and vision models entirely on-device. Features include live camera captioning, hands-free voice conversation, and code assistance with various models. It prioritizes privacy with no servers, API keys, or telemetry.

**Highlights:** On-device LLM and VLM execution, Live camera captioning, Hands-free voice conversation, Code assistant with multiple models, Document scanner and live OCR, Model benchmarking and A/B comparison, Mac pairing for inference server

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Astra Shell

[App page](https://appshunter.io/ios/app/astra-shell/id6807410920)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OnDevice free?

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

### Is Astra Shell free?

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

### Do OnDevice or Astra Shell have ads?

Neither OnDevice nor Astra Shell shows ads.

### Which is updated more often, OnDevice or Astra Shell?

OnDevice ships an update every 3 days, and Astra Shell every 4 weeks. Most recently, OnDevice was updated on October 16, 2026 and Astra Shell on October 12, 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.*