# MultiBuddy vs Shor's algorithm

The clearest difference is price: Shor's algorithm at Free against MultiBuddy's $4.99. MultiBuddy's advantage is in-app purchases (none vs 3) and update cadence (every 3 weeks vs every 6 months). On ads, device support and iOS requirement there is nothing between them.

Shor's algorithm is free to download; MultiBuddy costs $4.99 up front. Shor's algorithm sells 3 one-off in-app purchases. MultiBuddy asks for nothing beyond the download.

MultiBuddy ships an update every 3 weeks, Shor's algorithm every 6 months. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | MultiBuddy | Shor's algorithm |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/multibuddy/id6449202900/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Paid | — |
| Size | 1 MB | 7 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Springer](https://appshunter.io/developer/1402417666) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### 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


### Shor's algorithm

[App page](https://appshunter.io/ios/app/shors-algorithm/id6472044082)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| coffee | $0.99 | one-time |
| latte | $4.99 | one-time |
| whopper set | $9.99 | one-time |


## Frequently asked questions

### Is MultiBuddy free?

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

### Is Shor's algorithm free?

Shor's algorithm is free to download, with in-app purchases available.

### Do MultiBuddy or Shor's algorithm have ads?

Neither MultiBuddy nor Shor's algorithm shows ads.

### Which is updated more often, MultiBuddy or Shor's algorithm?

MultiBuddy ships an update every 3 weeks, and Shor's algorithm every 6 months. Most recently, MultiBuddy was updated on October 17, 2026 and Shor's algorithm on October 10, 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.*