# ATOMxGALAXIES vs Backdrop

The clearest difference is ads: Backdrop at none against ATOMxGALAXIES's shown. Backdrop also leads on update cadence (every 11 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. ATOMxGALAXIES sells 1 one-off in-app purchase and Backdrop sells 2 in-app purchases, starting at $11.99 per month. Whichever you choose, the download price is not the number that matters.

ATOMxGALAXIES ships an update monthly, Backdrop every 11 days. Both last shipped on October 19, 2026.

## The numbers

| Metric | ATOMxGALAXIES | Backdrop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 11 days** |
| Size | 12 MB | 127 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Masayuki Akamatsu](https://appshunter.io/developer/284722836) | [Shekhar Upadhaya](https://appshunter.io/developer/1896171196) |

## What reviewers say

### ATOMxGALAXIES

[App page](https://appshunter.io/ios/app/atomxgalaxies/id6757389981)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RemoveAds | $4.99 | one-time |


### Backdrop

[App page](https://appshunter.io/ios/app/backdrop-live-effects-camera/id6770320729)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Backdrop Premium — Monthly | $11.99 | per month |
| Backdrop Premium — Annual | $79.00 | per year |


## Frequently asked questions

### Is ATOMxGALAXIES free?

ATOMxGALAXIES is free to download, with in-app purchases available.

### Is Backdrop free?

Backdrop is free to download, with in-app purchases available.

### Do ATOMxGALAXIES or Backdrop have ads?

ATOMxGALAXIES shows ads; Backdrop does not.

### Which is updated more often, ATOMxGALAXIES or Backdrop?

ATOMxGALAXIES ships an update monthly, and Backdrop every 11 days. Most recently, ATOMxGALAXIES was updated on October 19, 2026 and Backdrop on October 19, 2026.

---

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