# Battery Sort! vs Flip Zero 21

Battery Sort! and Flip Zero 21 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Battery Sort! | Flip Zero 21 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | — |
| Size | 176 MB | 128 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ozan Kasikci](https://appshunter.io/developer/1485317310) | [MIDPOLY OYUN YAZILIM TASARIM DANISMANLIK HIZMETLERI VE TICARET ANONIM SIRKETI](https://appshunter.io/developer/1465253591) |

## What reviewers say

### Battery Sort!

[App page](https://appshunter.io/ios/app/battery-sort/id6470370546)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flip Zero 21

[App page](https://appshunter.io/ios/app/flip-zero-21/id6471971610)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Battery Sort! free?

Battery Sort! is free to download, with no in-app purchases.

### Is Flip Zero 21 free?

Flip Zero 21 is free to download, with no in-app purchases.

### Do Battery Sort! or Flip Zero 21 have ads?

Both Battery Sort! and Flip Zero 21 show ads.

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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.*