# Clock quiz, What time? vs Inversion

The clearest difference is price: Inversion at Free against Clock quiz, What time?'s $1.99. Inversion also leads on iOS requirement (15.0 vs 17.0). Clock quiz, What time?'s advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence and device support there is nothing between them.

Inversion is free to download; Clock quiz, What time? costs $1.99 up front. Inversion sells 1 one-off in-app purchase. Clock quiz, What time? asks for nothing beyond the download.

Clock quiz, What time? ships an update every 5 days, Inversion every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Clock quiz, What time? | Inversion |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/inversion-paradox/id6751603254/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 days | **Every 3 days** |
| Size | 1 MB | 183 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [hideo nakamura](https://appshunter.io/developer/1242808811) | [Isotopic Studios LTD](https://appshunter.io/developer/1835144995) |

## What reviewers say

### Clock quiz, What time?

[App page](https://appshunter.io/ios/app/clock-quiz-what-time/id6744439585)

**Features:** Vision Pro support

**In-app purchases:** none


### Inversion

[App page](https://appshunter.io/ios/app/inversion-paradox/id6751603254)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Clock quiz, What time? free?

Clock quiz, What time? costs $1.99, with no in-app purchases.

### Is Inversion free?

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

### Do Clock quiz, What time? or Inversion have ads?

Inversion shows ads; Clock quiz, What time? does not.

### Which is updated more often, Clock quiz, What time? or Inversion?

Clock quiz, What time? ships an update every 5 days, and Inversion every 3 days. Most recently, Clock quiz, What time? was updated on October 24, 2026 and Inversion on October 24, 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.*