# Nature Notes vs Gaiaxus

The clearest difference is rating: Gaiaxus at 5.0 against Nature Notes's 1.0. Gaiaxus also leads on in-app purchases (none vs 1). Nature Notes's advantage is update cadence (fortnightly vs every 2 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Nature Notes sells 1 one-off in-app purchase. Gaiaxus asks for nothing beyond the download.

Gaiaxus holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Nature Notes ships an update fortnightly, Gaiaxus every 2 months. Both last shipped on September 24, 2026.

## The numbers

| Metric | Nature Notes | Gaiaxus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/nature-notes/id1368239014/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gaiaxus/id6748620502/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 172 MB | 75 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kenneth Wahl](https://appshunter.io/developer/681454231) | [GaiaXus LLC](https://appshunter.io/developer/1826606292) |

## What reviewers say

### Nature Notes

[App page](https://appshunter.io/ios/app/nature-notes/id1368239014)

Record and share notes, photos, and audio from your outdoor adventures. Advanced tools allow for photo merging from other cameras and interactive map integration. Organize trips into multiple hikes and share them via email, web pages, or custom files.

**Highlights:** Record notes, photos, and audio, Merge photos from other cameras, Interactive Apple Maps integration, Organize trips into multiple hikes, Share via email, web pages, or files, GPS tracking and export (KML/GPX)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English | $4.99 | one-time |


### Gaiaxus

[App page](https://appshunter.io/ios/app/gaiaxus/id6748620502)

This app enables users to monitor water quality using a connected sensor, collecting data on temperature, turbidity, salinity, and more. It offers interactive learning modules for environmental education, suitable for students and citizen scientists.

**Highlights:** Real-time water quality data collection, Temperature, turbidity, salinity, pH, chlorophyll monitoring, Interactive educator-designed learning modules, Field data collection and viewing, Supports K-12 students, citizen scientists, and researchers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nature Notes free?

Nature Notes is free to download, with in-app purchases available.

### Is Gaiaxus free?

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

### Which has better reviews, Nature Notes or Gaiaxus?

Gaiaxus is rated higher. Nature Notes averages 1.0 out of 5 from 1 ratings, while Gaiaxus averages 5.0 from 1 ratings.

### Do Nature Notes or Gaiaxus have ads?

Neither Nature Notes nor Gaiaxus shows ads.

### Which is updated more often, Nature Notes or Gaiaxus?

Nature Notes ships an update fortnightly, and Gaiaxus every 2 months. Most recently, Nature Notes was updated on September 24, 2026 and Gaiaxus on September 24, 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.*