# PE Shake vs The Waterbug App

The clearest difference is price: The Waterbug App at Free against PE Shake's $1.99. The Waterbug App also leads on update cadence (every 9 months vs every 54 months) and iOS requirement (15.0 vs 17.0). PE Shake's advantage is review sentiment (100% vs 88%). On ads, in-app purchases and device support there is nothing between them.

The Waterbug App is free to download; PE Shake costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PE Shake ships an update every 54 months, The Waterbug App every 9 months. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | PE Shake | The Waterbug App |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/pe-shake/id649792625/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **100.0% of reviews** | 87.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 54 months | **Every 9 months** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 59 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dale SIDEBOTTOM](https://appshunter.io/developer/577991383) | [Michael Sharman](https://appshunter.io/developer/926215556) |

## What reviewers say

### PE Shake

[App page](https://appshunter.io/ios/app/pe-shake/id649792625)

This app provides physical education teachers and students with a random selection of 100 warm-up games. Simply shake the device to generate a new game idea, requiring minimal equipment and suitable for various age groups. It's a fun way to introduce variety into lessons or use as a reward.

**Highlights:** 100 random warm-up games, Minimal equipment required, Suitable for primary and secondary students, Shake to generate new game, Fun for teachers and students, Lesson variety and reward tool

**Features:** macOS Compatibility

**In-app purchases:** none


### The Waterbug App

[App page](https://appshunter.io/ios/app/the-waterbug-app/id926215557)

Identify freshwater invertebrates found in Australian waterways. Assess the health of rivers, creeks, and wetlands by observing these creatures. Contribute your findings to a national citizen science program.

**Highlights:** Waterbug identification, River health assessment, Citizen science contribution, Data submission, Australian freshwater invertebrates

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

**In-app purchases:** none


## Frequently asked questions

### Is PE Shake free?

PE Shake costs $1.99, with no in-app purchases.

### Is The Waterbug App free?

The Waterbug App is free to download, with no in-app purchases.

### Do PE Shake or The Waterbug App have ads?

Neither PE Shake nor The Waterbug App shows ads.

### Which is updated more often, PE Shake or The Waterbug App?

PE Shake ships an update every 54 months, and The Waterbug App every 9 months. Most recently, PE Shake was updated on October 22, 2026 and The Waterbug App 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.*