# Astro Viewer vs Atom Translate

The clearest difference is ads: Astro Viewer at none against Atom Translate's shown. Atom Translate's advantage is update cadence (every 9 days vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Astro Viewer ships an update every 4 months, Atom Translate every 9 days. Both last shipped on October 15, 2026.

## The numbers

| Metric | Astro Viewer | Atom Translate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 9 days** |
| Size | 20 MB | 95 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heebok Lee](https://appshunter.io/developer/1855773499) | [Valentyn Handrybida](https://appshunter.io/developer/6775952298) |

## What reviewers say

### Astro Viewer

[App page](https://appshunter.io/ios/app/astro-viewer/id6755899238)

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

**In-app purchases:** none


### Atom Translate

[App page](https://appshunter.io/ios/app/atom-translate-learn-words/id6792120675)

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

**In-app purchases:** none


## Frequently asked questions

### Is Astro Viewer free?

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

### Is Atom Translate free?

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

### Do Astro Viewer or Atom Translate have ads?

Atom Translate shows ads; Astro Viewer does not.

### Which is updated more often, Astro Viewer or Atom Translate?

Astro Viewer ships an update every 4 months, and Atom Translate every 9 days. Most recently, Astro Viewer was updated on October 15, 2026 and Atom Translate on October 15, 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.*