# unico vs Missing Number Calculator

The clearest difference is price: unico at Free against Missing Number Calculator's $0.99. Missing Number Calculator's advantage is update cadence (every 3 days vs every 5 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

unico is free to download; Missing Number Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

unico ships an update every 5 weeks, Missing Number Calculator every 3 days. The most recent releases landed on October 16, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | unico | Missing Number Calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Size | 15 MB | 6 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [kennsuke nakagawa](https://appshunter.io/developer/1663765688) | [Infinity Inc. (Apps)](https://appshunter.io/developer/1680741877) |

## What reviewers say

### unico

[App page](https://appshunter.io/ios/app/unico/id1663765686)

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

**In-app purchases:** none


### Missing Number Calculator

[App page](https://appshunter.io/ios/app/missing-number-calculator/id6747973776)

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

**In-app purchases:** none


## Frequently asked questions

### Is unico free?

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

### Is Missing Number Calculator free?

Missing Number Calculator costs $0.99, with no in-app purchases.

### Do unico or Missing Number Calculator have ads?

Neither unico nor Missing Number Calculator shows ads.

### Which is updated more often, unico or Missing Number Calculator?

unico ships an update every 5 weeks, and Missing Number Calculator every 3 days. Most recently, unico was updated on October 16, 2026 and Missing Number Calculator on October 28, 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.*