# Flatchr vs 1CHECK

The clearest difference is ads: Flatchr at none against 1CHECK's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Flatchr | 1CHECK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 43 MB | 44 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [flatchr](https://appshunter.io/developer/1524024949) | [1CHECK](https://appshunter.io/developer/1666587347) |

## What reviewers say

### Flatchr

[App page](https://appshunter.io/ios/app/flatchr/id6444622127)

**Features:** macOS Compatibility

**In-app purchases:** none


### 1CHECK

[App page](https://appshunter.io/ios/app/1check/id6446942503)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Flatchr free?

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

### Is 1CHECK free?

1CHECK is free to download, with no in-app purchases.

### Do Flatchr or 1CHECK have ads?

1CHECK shows ads; Flatchr does not.

### Which is updated more often, Flatchr or 1CHECK?

Flatchr ships an update every 3 weeks, and 1CHECK every 3 weeks. Most recently, Flatchr was updated on October 7, 2026 and 1CHECK on October 11, 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.*