# HYDROS App vs Unplayed

The clearest difference is update cadence: Unplayed at fortnightly against HYDROS App's every 3 months. HYDROS App's advantage is iOS requirement (15.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

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

HYDROS App ships an update every 3 months, Unplayed fortnightly. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | HYDROS App | Unplayed |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (24 ratings)](https://appshunter.io/ios/app/hydros-app/id1455344294/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 62.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 70 MB | 6 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Apple TV, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Coralvue](https://appshunter.io/developer/1455344293) | [Niko Klausnitzer](https://appshunter.io/developer/1880990449) |

## What reviewers say

### HYDROS App

[App page](https://appshunter.io/ios/app/hydros-app/id1455344294)

Easily monitor and control your aquarium's vital parameters like temperature, pH, and salinity. Manage all your connected devices, including ATOs, lights, and pumps, with a user-friendly interface. Quick setup with preset configurations means no coding is required to get your system running.

**Highlights:** Monitor temperature, ORP, pH, salinity, Control ATO, lights, heaters, pumps, User-friendly interface, Quick setup with presets, Manage multiple devices and aquariums, Set schedules and create modes

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

**In-app purchases:** none


### Unplayed

[App page](https://appshunter.io/ios/app/unplayed/id6759826754)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is HYDROS App free?

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

### Is Unplayed free?

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

### Do HYDROS App or Unplayed have ads?

Neither HYDROS App nor Unplayed shows ads.

### Which is updated more often, HYDROS App or Unplayed?

HYDROS App ships an update every 3 months, and Unplayed fortnightly. Most recently, HYDROS App was updated on October 29, 2026 and Unplayed on October 28, 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.*