# ZKT Timer vs Human Limit Test

The clearest difference is update cadence: ZKT Timer at fortnightly against Human Limit Test's every 5 months. ZKT Timer also leads on ratings volume (5 vs 1) and device support (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. ZKT Timer sells 3 in-app purchases, starting at $2.99 per month and Human Limit Test sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for ZKT Timer against 5.0 for Human Limit Test. That said, the two scores are not equally well evidenced: ZKT Timer has 5 ratings behind it against 1, so its average is the more settled of the two.

ZKT Timer ships an update fortnightly, Human Limit Test every 5 months. Both last shipped on November 5, 2026.

## The numbers

| Metric | ZKT Timer | Human Limit Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/zkt-timer-speed-cube-timer/id6760920873/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/human-limit-test/id6764756677/reviews) |
| Number of ratings | **5** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 52 MB | 13 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [IBRAHIM YILDIZ](https://appshunter.io/developer/1886820737) | [洋 刘](https://appshunter.io/developer/1892977347) |

## What reviewers say

### ZKT Timer

[App page](https://appshunter.io/ios/app/zkt-timer-speed-cube-timer/id6760920873)

This app is a comprehensive speedcubing platform for enthusiasts. It offers training tools, detailed performance analysis, and features for participating in and tracking global competitions. Users can connect smart hardware, practice algorithms, and engage in multiplayer challenges.

**Highlights:** WCA competition hub with live tracking, Smart cube and gyroscope integration, Phase analysis for split times, Algorithm trainer with visualization, Multiplayer and 1v1 battle modes, Customizable interface and themes

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZKT Timer Pro | $2.99 | per month |
| ZKT Timer Pro | $19.99 | per year |
| ZKT Timer Pro Life Time | $39.99 | one-time |


### Human Limit Test

[App page](https://appshunter.io/ios/app/human-limit-test/id6764756677)

Test and train your brain daily with various modules designed to improve reaction speed, memory, and focus. Track your progress, compare scores with friends, and unlock your potential with quick, engaging exercises.

**Highlights:** 10 test modules, Reaction time testing, Memory training, Focus and observation skills, Hand-eye coordination, Progress tracking, Friend score comparison

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is ZKT Timer free?

ZKT Timer is free to download, with in-app purchases available.

### Is Human Limit Test free?

Human Limit Test is free to download, with in-app purchases available.

### Which has better reviews, ZKT Timer or Human Limit Test?

ZKT Timer and Human Limit Test are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do ZKT Timer or Human Limit Test have ads?

Neither ZKT Timer nor Human Limit Test shows ads.

### Which is updated more often, ZKT Timer or Human Limit Test?

ZKT Timer ships an update fortnightly, and Human Limit Test every 5 months. Most recently, ZKT Timer was updated on November 5, 2026 and Human Limit Test on November 5, 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.*