# Add and subtract within 20 vs MultiBuddy

The clearest difference is update cadence: MultiBuddy at every 3 weeks against Add and subtract within 20's every 36 months. Add and subtract within 20's advantage is price ($2.99 vs $4.99) and iOS requirement (12.0 vs 17.0). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

Add and subtract within 20 costs $2.99 and MultiBuddy $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Add and subtract within 20 ships an update every 36 months, MultiBuddy every 3 weeks. The most recent releases landed on October 23, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Add and subtract within 20 | MultiBuddy |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/multibuddy/id6449202900/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 18 MB | 1 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sergey Malugin](https://appshunter.io/developer/562782409) | [Daniel Springer](https://appshunter.io/developer/1402417666) |

## What reviewers say

### Add and subtract within 20

[App page](https://appshunter.io/ios/app/add-and-subtract-within-20/id757149544)

This app transforms math practice into an exciting adventure for children. It uses interactive mini-games and handwriting recognition to make learning addition and subtraction within 20 fun and effective. The difficulty adapts to your child's progress for a personalized experience.

**Highlights:** Interactive mini-games, Handwriting recognition, Adaptive difficulty, Targeted addition/subtraction practice, Natural learning input

**Features:** macOS Compatibility

**In-app purchases:** none


### MultiBuddy

[App page](https://appshunter.io/ios/app/multibuddy/id6449202900)

This app transforms multiplication practice into an exciting adventure for children aged 5-12. With thousands of levels, engaging gameplay, and colorful graphics, it makes mastering times tables fun and confidence-building.

**Highlights:** 1000 levels of multiplication practice, Interactive 'Yes/No' gameplay, Lives system for challenge, Score points and beat the timer, Colorful and engaging graphics, Progress tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Add and subtract within 20 free?

Add and subtract within 20 costs $2.99, with no in-app purchases.

### Is MultiBuddy free?

MultiBuddy costs $4.99, with no in-app purchases.

### Do Add and subtract within 20 or MultiBuddy have ads?

Neither Add and subtract within 20 nor MultiBuddy shows ads.

### Which is updated more often, Add and subtract within 20 or MultiBuddy?

Add and subtract within 20 ships an update every 36 months, and MultiBuddy every 3 weeks. Most recently, Add and subtract within 20 was updated on October 23, 2026 and MultiBuddy on October 17, 2026.

---

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