# Geosensors vs HydroData

The clearest difference is rating: Geosensors at 5.0 against HydroData's 2.6. Geosensors also leads on iOS requirement (10.3 vs 17.6). HydroData's advantage is ratings volume (5 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Geosensors holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: HydroData has 5 ratings behind it against 1, so its average is the more settled of the two.

Geosensors ships an update every 3 weeks, HydroData monthly. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Geosensors | HydroData |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/geosensors/id1162783006/reviews)** | [2.6 (5 ratings)](https://appshunter.io/ios/app/hydrodata/id1576887037/reviews) |
| Number of ratings | 1 | **5** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 19 MB | 50 MB |
| Requires iOS | **10.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Geosensors](https://appshunter.io/developer/1162783005) | [Longitude 103](https://appshunter.io/developer/1576887039) |

## What reviewers say

### Geosensors

[App page](https://appshunter.io/ios/app/geosensors/id1162783006)

This application works with specialized hardware to conduct geophysical surveys. It allows users to monitor live sensor data, set up and record surveys, and transfer completed data for further analysis. Users can also modify sensor and logger configurations.

**Highlights:** Connect to Geosensors Logger via WiFi, Monitor live EM and GPS data, View sensor auxiliary data, Resume incomplete surveys, Modify sensor and logger configurations, Download and email survey data

**Features:** macOS Compatibility

**In-app purchases:** none


### HydroData

[App page](https://appshunter.io/ios/app/hydrodata/id1576887037)

This app enables field data collection with map integration to pinpoint features and track your location. It supports gathering field reports, well water levels, and dam inspection data, syncing it all to the cloud when convenient.

**Highlights:** Field data collection, Map-based feature selection, Location tracking, Cloud synchronization, Well water level logging, Dam inspection reports

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Geosensors free?

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

### Is HydroData free?

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

### Which has better reviews, Geosensors or HydroData?

Geosensors is rated higher. Geosensors averages 5.0 out of 5 from 1 ratings, while HydroData averages 2.6 from 5 ratings.

### Do Geosensors or HydroData have ads?

Neither Geosensors nor HydroData shows ads.

### Which is updated more often, Geosensors or HydroData?

Geosensors ships an update every 3 weeks, and HydroData monthly. Most recently, Geosensors was updated on September 29, 2026 and HydroData on October 2, 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.*