# FM Matrix vs HydroData

The clearest difference is iOS requirement: FM Matrix at 15.6 against HydroData's 17.6. 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.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | FM Matrix | HydroData |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.6 (5 ratings)](https://appshunter.io/ios/app/hydrodata/id1576887037/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | Free |
| Size | 171 MB | 50 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Haven Infoline LLP](https://appshunter.io/developer/1071457985) | [Longitude 103](https://appshunter.io/developer/1576887039) |

## What reviewers say

### FM Matrix

[App page](https://appshunter.io/ios/app/fm-matrix/id1474584714)

Empower facility managers with intelligent solutions for asset and inventory management. Automate workflows, schedule maintenance, and manage tasks on the go to save costs and improve efficiency.

**Highlights:** Asset Management, Inventory Management, PPM Scheduling, Energy Management, Helpdesk, Visitor Management

**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 FM Matrix free?

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

### Is HydroData free?

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

### Do FM Matrix or HydroData have ads?

Neither FM Matrix nor HydroData shows ads.

### Which is updated more often, FM Matrix or HydroData?

FM Matrix ships an update monthly, and HydroData monthly. Most recently, FM Matrix was updated on October 11, 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.*