# Keys Tester vs Pier Shell

The clearest difference is update cadence: Keys Tester at every 5 days against Pier Shell's every 2 weeks. Keys Tester also leads on iOS requirement (15.1 vs 26.5). 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.

Keys Tester ships an update every 5 days, Pier Shell every 2 weeks. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Keys Tester | Pier Shell |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Size | 32 MB | 13 MB |
| Requires iOS | **15.1** | 26.5 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [PUNCAK NIAGA BERSAMA SDN. BHD.](https://appshunter.io/developer/1700860371) | [Muhamad Nur Asyraaf](https://appshunter.io/developer/1841873975) |

## What reviewers say

### Keys Tester

[App page](https://appshunter.io/ios/app/keys-tester/id6759716603)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Pier Shell

[App page](https://appshunter.io/ios/app/pier-shell/id6801818407)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Keys Tester free?

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

### Is Pier Shell free?

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

### Do Keys Tester or Pier Shell have ads?

Neither Keys Tester nor Pier Shell shows ads.

### Which is updated more often, Keys Tester or Pier Shell?

Keys Tester ships an update every 5 days, and Pier Shell every 2 weeks. Most recently, Keys Tester was updated on November 9, 2026 and Pier Shell on November 10, 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.*