# APOD Pro vs Astro Viewer

The clearest difference is device support: APOD Pro at 5 against Astro Viewer's 3. Astro Viewer's advantage is iOS requirement (15.6 vs 18.1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

APOD Pro ships an update every 5 months, Astro Viewer every 4 months. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | APOD Pro | Astro Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Size | 4 MB | 20 MB |
| Requires iOS | 18.1 | **15.6** |
| Devices | **iPhone, iPad, Mac, Apple Watch, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sorth LLC](https://appshunter.io/developer/290385324) | [Heebok Lee](https://appshunter.io/developer/1855773499) |

## What reviewers say

### APOD Pro

[App page](https://appshunter.io/ios/app/apod-pro/id6479388186)

**Features:** Apple Watch app

**In-app purchases:** none


### Astro Viewer

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

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

**In-app purchases:** none


## Frequently asked questions

### Is APOD Pro free?

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

### Is Astro Viewer free?

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

### Do APOD Pro or Astro Viewer have ads?

Neither APOD Pro nor Astro Viewer shows ads.

### Which is updated more often, APOD Pro or Astro Viewer?

APOD Pro ships an update every 5 months, and Astro Viewer every 4 months. Most recently, APOD Pro was updated on October 11, 2026 and Astro Viewer 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.*