# Find Missing Addends Or Sum vs Monsty

The clearest difference is price: Find Missing Addends Or Sum at Free against Monsty's $2.99. Find Missing Addends Or Sum also leads on iOS requirement (12.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Find Missing Addends Or Sum is free to download; Monsty costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Find Missing Addends Or Sum | Monsty |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 weeks |
| Size | 34 MB | 29 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Science Education Institute](https://appshunter.io/developer/1439710468) | [PATRICIA SAUER](https://appshunter.io/developer/1697710298) |

## What reviewers say

### Find Missing Addends Or Sum

[App page](https://appshunter.io/ios/app/find-missing-addends-or-sum/id6702024727)

**Features:** macOS Compatibility

**In-app purchases:** none


### Monsty

[App page](https://appshunter.io/ios/app/monsty-first-math/id6738328693)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Find Missing Addends Or Sum free?

Find Missing Addends Or Sum is free to download, with no in-app purchases.

### Is Monsty free?

Monsty costs $2.99, with no in-app purchases.

### Do Find Missing Addends Or Sum or Monsty have ads?

Neither Find Missing Addends Or Sum nor Monsty shows ads.

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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.*