# Flats vs SmartKey

The clearest difference is update cadence: Flats at every 2 weeks against SmartKey's every 5 months. Flats also leads on iOS requirement (9.0 vs 14.0). On price, ads, 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.

Flats ships an update every 2 weeks, SmartKey every 5 months. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Flats | SmartKey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Size | 87 MB | 20 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [庆省 韩](https://appshunter.io/developer/1441108108) | [SmartKey s.r.o.](https://appshunter.io/developer/1515904395) |

## What reviewers say

### Flats

[App page](https://appshunter.io/ios/app/flats-lock/id1459581509)

**Features:** macOS Compatibility

**In-app purchases:** none


### SmartKey

[App page](https://appshunter.io/ios/app/smartkey-manager/id6462880301)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flats free?

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

### Is SmartKey free?

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

### Do Flats or SmartKey have ads?

Neither Flats nor SmartKey shows ads.

### Which is updated more often, Flats or SmartKey?

Flats ships an update every 2 weeks, and SmartKey every 5 months. Most recently, Flats was updated on October 7, 2026 and SmartKey on October 2, 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.*