# The Waterbug App vs WomSAT

The clearest difference is review sentiment: The Waterbug App at 88% against WomSAT's 50%. The Waterbug App also leads on update cadence (every 9 months vs every 30 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

The Waterbug App ships an update every 9 months, WomSAT every 30 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | The Waterbug App | WomSAT |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **87.5% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 30 months |
| Monetization | Free | Free |
| Size | 59 MB | 29 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Sharman](https://appshunter.io/developer/926215556) | [University of Western Sydney](https://appshunter.io/developer/666618434) |

## What reviewers say

### 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


### WomSAT

[App page](https://appshunter.io/ios/app/womsat/id1023641361)

Help protect Australian wombats by reporting their sightings. This app allows you to map wombat locations, contributing vital data to conservation efforts against threats like disease and road accidents. Become a Wombat Warrior and aid these important ecosystem engineers.

**Highlights:** Report wombat sightings, Map wombat locations, Contribute to conservation data, Learn about wombat threats, Become a Wombat Warrior

**In-app purchases:** none


## Frequently asked questions

### Is The Waterbug App free?

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

### Is WomSAT free?

WomSAT is free to download, with no in-app purchases.

### Do The Waterbug App or WomSAT have ads?

Neither The Waterbug App nor WomSAT shows ads.

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

The Waterbug App ships an update every 9 months, and WomSAT every 30 months. Most recently, The Waterbug App was updated on November 1, 2026 and WomSAT on November 1, 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.*