# Mars Hydro vs MoeuPLTest

The clearest difference is in-app purchases: Mars Hydro at none against MoeuPLTest's 9. Mars Hydro also leads on iOS requirement (15.0 vs 17.0). MoeuPLTest's advantage is update cadence (every 8 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. MoeuPLTest sells 9 one-off in-app purchases. Mars Hydro asks for nothing beyond the download.

Mars Hydro ships an update monthly, MoeuPLTest every 8 days. The most recent releases landed on August 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Mars Hydro | MoeuPLTest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (27 ratings)](https://appshunter.io/ios/app/mars-hydro/id6479227564/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 23.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Monetization | Free | — |
| Size | 45 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [MARS TRADING RCC, INC.](https://appshunter.io/developer/1726858942) | [翌嘉 赵](https://appshunter.io/developer/1775197786) |

## What reviewers say

### Mars Hydro

[App page](https://appshunter.io/ios/app/mars-hydro/id6479227564)

Control your smart grow system with this app. Manage LED lights, ventilation, and monitor environmental data like CO2, temperature, and humidity for optimal plant growth. Automate your entire grow kit to mimic natural conditions.

**Highlights:** LED light control with timers and simulation, Ventilation system management, Complete grow kit automation via iHub, Environmental data monitoring (CO2, temp, humidity, PPFD), Sunrise and sunset simulation

**In-app purchases:** none


### MoeuPLTest

[App page](https://appshunter.io/ios/app/moeupltest/id6757464940)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sunlight | $4.99 | one-time |
| Full Spectrum | $4.99 | one-time |
| Blue + White | $4.99 | one-time |
| Full Spectrum + Red | $4.99 | one-time |
| Red + Blue | $4.99 | one-time |
| Deep Red | $4.99 | one-time |
| HPS Sodium | $4.99 | one-time |
| Fluorescent | $4.99 | one-time |
| Unlock All Light Sources | $12.99 | one-time |


## Frequently asked questions

### Is Mars Hydro free?

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

### Is MoeuPLTest free?

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

### Do Mars Hydro or MoeuPLTest have ads?

Neither Mars Hydro nor MoeuPLTest shows ads.

### Which is updated more often, Mars Hydro or MoeuPLTest?

Mars Hydro ships an update monthly, and MoeuPLTest every 8 days. Most recently, Mars Hydro was updated on August 11, 2026 and MoeuPLTest on September 9, 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.*