# threeThingsZero vs Cavernum

The clearest difference is in-app purchases: threeThingsZero at none against Cavernum's 7. Cavernum's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. Cavernum sells 7 one-off in-app purchases. threeThingsZero asks for nothing beyond the download.

## The numbers

| Metric | threeThingsZero | Cavernum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cavernum-number-puzzle/id6800820586/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Every 2 days |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 89 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [公亮 中村](https://appshunter.io/developer/1835186149) | [Greenfox Ventures LLC](https://appshunter.io/developer/6800820588) |

## What reviewers say

### threeThingsZero

[App page](https://appshunter.io/ios/app/threethingszero/id6753323685)

**In-app purchases:** none


### Cavernum

[App page](https://appshunter.io/ios/app/cavernum-number-puzzle/id6800820586)

A casual number-pairing puzzle game where you match tiles that are equal or add up to ten to clear paths. Explore unique cave levels with evolving challenges and use helpful tools to overcome obstacles. Play anywhere without an account.

**Highlights:** Number matching puzzles, Tile addition up to ten, Evolving cave levels, Grid compression mechanics, Helpful tools (Hint, Undo, Swap), No account required

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Undo | $0.99 | one-time |
| 5 Hints | $1.99 | one-time |
| 5 Undos | $3.99 | one-time |
| 20 Hints | $5.99 | one-time |
| 15 Undos | $9.99 | one-time |
| 50 Hints | $11.99 | one-time |
| Remove Interruption Ads | $14.99 | one-time |


## Frequently asked questions

### Is threeThingsZero free?

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

### Is Cavernum free?

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

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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.*