# PsstBee vs Number Decomposition

The clearest difference is update cadence: PsstBee at every 11 days against Number Decomposition's every 5 months. PsstBee also leads on price ($2.99 vs $3.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

PsstBee costs $2.99 and Number Decomposition $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PsstBee ships an update every 11 days, Number Decomposition every 5 months. The most recent releases landed on October 28, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | PsstBee | Number Decomposition |
| --- | --- | --- |
| Price | **$2.99** | $3.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 5 months |
| Monetization | — | Paid |
| Size | 8 MB | 78 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HENDRIK LANG](https://appshunter.io/developer/1723864791) | [Lernwunder](https://appshunter.io/developer/1840747082) |

## What reviewers say

### PsstBee

[App page](https://appshunter.io/ios/app/psstbee-noise-light/id6752318619)

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

**In-app purchases:** none


### Number Decomposition

[App page](https://appshunter.io/ios/app/number-decomposition-math/id6752735119)

This educational app teaches children foundational math skills by focusing on number bonds up to 10, avoiding counting to build a strong understanding of arithmetic. It uses visual aids and a structured approach for quick, accurate recall of addition and subtraction facts.

**Highlights:** Number bonds up to 10, Drag and drop interface, Visual quantity images, Spaced repetition learning, Child-friendly avatars, Offline functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PsstBee free?

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

### Is Number Decomposition free?

Number Decomposition costs $3.99, with no in-app purchases.

### Do PsstBee or Number Decomposition have ads?

Neither PsstBee nor Number Decomposition shows ads.

### Which is updated more often, PsstBee or Number Decomposition?

PsstBee ships an update every 11 days, and Number Decomposition every 5 months. Most recently, PsstBee was updated on October 28, 2026 and Number Decomposition on October 12, 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.*