# KeyFolder2 vs SoundIntervalTimer byNSDev

The clearest difference is ads: SoundIntervalTimer byNSDev at none against KeyFolder2's shown. KeyFolder2's advantage is iOS requirement (15.1 vs 17). On price, 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.

## The numbers

| Metric | KeyFolder2 | SoundIntervalTimer byNSDev |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 15 months | — |
| Size | 28 MB | 4 MB |
| Requires iOS | **15.1** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tatsuya Tobioka](https://appshunter.io/developer/363452280) | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) |

## What reviewers say

### KeyFolder2

[App page](https://appshunter.io/ios/app/keyfolder2-filelist-with-pin/id1594374317)

**In-app purchases:** none


### SoundIntervalTimer byNSDev

[App page](https://appshunter.io/ios/app/soundintervaltimer-bynsdev/id6751438998)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KeyFolder2 free?

KeyFolder2 is free to download, with no in-app purchases.

### Is SoundIntervalTimer byNSDev free?

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

### Do KeyFolder2 or SoundIntervalTimer byNSDev have ads?

KeyFolder2 shows ads; SoundIntervalTimer byNSDev does not.

---

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