# TapSync! vs Quantum Number Lock

The clearest difference is update cadence: Quantum Number Lock at every 9 days against TapSync!'s every 5 weeks. Quantum Number Lock also leads on iOS requirement (15 vs 18.0). 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.

TapSync! ships an update every 5 weeks, Quantum Number Lock every 9 days. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | TapSync! | Quantum Number Lock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 9 days** |
| Size | 13 MB | 7 MB |
| Requires iOS | 18.0 | **15** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bobby Ore](https://appshunter.io/developer/1836071285) | [特 郑](https://appshunter.io/developer/1881393610) |

## What reviewers say

### TapSync!

[App page](https://appshunter.io/ios/app/tapsync/id6751613825)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quantum Number Lock

[App page](https://appshunter.io/ios/app/quantum-number-lock/id6760518803)

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

**In-app purchases:** none


## Frequently asked questions

### Is TapSync! free?

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

### Is Quantum Number Lock free?

Quantum Number Lock is free to download, with no in-app purchases.

### Do TapSync! or Quantum Number Lock have ads?

Neither TapSync! nor Quantum Number Lock shows ads.

### Which is updated more often, TapSync! or Quantum Number Lock?

TapSync! ships an update every 5 weeks, and Quantum Number Lock every 9 days. Most recently, TapSync! was updated on October 7, 2026 and Quantum Number Lock on October 9, 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.*