# たのしい神経衰弱（しんけいすいじゃく） vs Time Perception Test

The clearest difference is price: Time Perception Test at Free against たのしい神経衰弱（しんけいすいじゃく）'s $0.99. Time Perception Test also leads on update cadence (every 2 days vs every 38 months). たのしい神経衰弱（しんけいすいじゃく）'s advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Time Perception Test is free to download; たのしい神経衰弱（しんけいすいじゃく） costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

たのしい神経衰弱（しんけいすいじゃく） ships an update every 38 months, Time Perception Test every 2 days. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | たのしい神経衰弱（しんけいすいじゃく） | Time Perception Test |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/time-perception-test/id6449470351/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Every 2 days** |
| Monetization | — | Ad-supported |
| Size | 25 MB | 46 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Amateral Inc.](https://appshunter.io/developer/490530434) | [Osawa Shunsuke](https://appshunter.io/developer/477431394) |

## What reviewers say

### たのしい神経衰弱（しんけいすいじゃく）

[App page](https://appshunter.io/ios/app/id1639858184)

**Features:** Vision Pro support

**In-app purchases:** none


### Time Perception Test

[App page](https://appshunter.io/ios/app/time-perception-test/id6449470351)

Test your ability to accurately judge time intervals from 1 to 30 seconds. Improve your time sense and enhance productivity and decision-making skills in daily life. This app helps you develop a better understanding of time and manage your schedule more effectively.

**Highlights:** Test time intervals (1, 3, 5, 10, 30 seconds), Compare predicted vs. actual reaction time, Improve productivity and efficiency, Hone time management skills, Develop intuitive decision-making

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is たのしい神経衰弱（しんけいすいじゃく） free?

たのしい神経衰弱（しんけいすいじゃく） costs $0.99, with no in-app purchases.

### Is Time Perception Test free?

Time Perception Test is free to download, with no in-app purchases.

### Do たのしい神経衰弱（しんけいすいじゃく） or Time Perception Test have ads?

Time Perception Test shows ads; たのしい神経衰弱（しんけいすいじゃく） does not.

### Which is updated more often, たのしい神経衰弱（しんけいすいじゃく） or Time Perception Test?

たのしい神経衰弱（しんけいすいじゃく） ships an update every 38 months, and Time Perception Test every 2 days. Most recently, たのしい神経衰弱（しんけいすいじゃく） was updated on October 12, 2026 and Time Perception Test on October 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.*