# Define Astro vs Astrodap

The clearest difference is ads: Define Astro at none against Astrodap's shown. Define Astro also leads on update cadence (every 5 days vs every 9 days). 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.

Define Astro ships an update every 5 days, Astrodap every 9 days. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Define Astro | Astrodap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 9 days |
| Size | 187 MB | 45 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sushil kumar Gupta](https://appshunter.io/developer/1887487662) | [Delulu Ventures LLP](https://appshunter.io/developer/6795803896) |

## What reviewers say

### Define Astro

[App page](https://appshunter.io/ios/app/define-astro/id6761046190)

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

**In-app purchases:** none


### Astrodap

[App page](https://appshunter.io/ios/app/astrodap/id6802966670)

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

**In-app purchases:** none


## Frequently asked questions

### Is Define Astro free?

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

### Is Astrodap free?

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

### Do Define Astro or Astrodap have ads?

Astrodap shows ads; Define Astro does not.

### Which is updated more often, Define Astro or Astrodap?

Define Astro ships an update every 5 days, and Astrodap every 9 days. Most recently, Define Astro was updated on October 8, 2026 and Astrodap on October 5, 2026.

---

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