# Cubic Isles vs Missing Digits

The clearest difference is in-app purchases: Cubic Isles at none against Missing Digits's 1. Missing Digits's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Missing Digits sells 1 one-off in-app purchase. Cubic Isles asks for nothing beyond the download.

Cubic Isles ships an update every 6 weeks, Missing Digits monthly. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Cubic Isles | Missing Digits |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 12 MB | 1 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Claudio Souza Mattos](https://appshunter.io/developer/1774316937) | [torankirite](https://appshunter.io/developer/1883564850) |

## What reviewers say

### Cubic Isles

[App page](https://appshunter.io/ios/app/cubic-isles/id6553995539)

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

**In-app purchases:** none


### Missing Digits

[App page](https://appshunter.io/ios/app/missing-digits-math-puzzle/id6799607537)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is Cubic Isles free?

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

### Is Missing Digits free?

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

### Do Cubic Isles or Missing Digits have ads?

Cubic Isles shows ads; Missing Digits does not.

### Which is updated more often, Cubic Isles or Missing Digits?

Cubic Isles ships an update every 6 weeks, and Missing Digits monthly. Most recently, Cubic Isles was updated on October 9, 2026 and Missing Digits on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*