# Number Time vs ISUD Zero

The clearest difference is in-app purchases: ISUD Zero at none against Number Time's 4. ISUD Zero also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Number Time sells 4 one-off in-app purchases. ISUD Zero asks for nothing beyond the download.

## The numbers

| Metric | Number Time | ISUD Zero |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Size | 65 MB | 119 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Masaru Kimura](https://appshunter.io/developer/1279750497) | [Suwitcha Sugthana](https://appshunter.io/developer/372726303) |

## What reviewers say

### Number Time

[App page](https://appshunter.io/ios/app/number-time/id1465865365)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ad | $0.99 | one-time |
| Unlock Endless Mode | $0.99 | one-time |
| Unlock No-Drop Mode | $0.99 | one-time |
| Unlock 7 Game Modes | $1.99 | one-time |


### ISUD Zero

[App page](https://appshunter.io/ios/app/isud-zero/id6765926399)

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

**In-app purchases:** none


## Frequently asked questions

### Is Number Time free?

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

### Is ISUD Zero free?

ISUD Zero is free to download, with no in-app purchases.

### Do Number Time or ISUD Zero have ads?

Number Time shows ads; ISUD Zero does not.

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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.*