# YINMIK vs Mars Hydro

The clearest difference is rating: Mars Hydro at 2.6 against YINMIK's 1.9. Mars Hydro also leads on review sentiment (24% vs 15%). YINMIK's advantage is iOS requirement (12.0 vs 15.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

Mars Hydro holds the better App Store score, 2.6 against 1.9. Both are backed by a comparable volume of ratings — 23 and 27 respectively. Written reviews point the same way: 15% of YINMIK's written reviews are positive against 24% of Mars Hydro's.

YINMIK ships an update every 6 weeks, Mars Hydro monthly. The most recent releases landed on September 21, 2026 and August 11, 2026 respectively.

## The numbers

| Metric | YINMIK | Mars Hydro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (23 ratings)](https://appshunter.io/ios/app/yinmik/id1590106540/reviews) | **[2.6 (27 ratings)](https://appshunter.io/ios/app/mars-hydro/id6479227564/reviews)** |
| Number of ratings | 23 | **27** |
| Positive reviews | 15.0% of reviews | **23.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free | Free |
| Size | 60 MB | 45 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Huiquan Electronic](https://appshunter.io/developer/1590106542) | [MARS TRADING RCC, INC.](https://appshunter.io/developer/1726858942) |

## What reviewers say

### YINMIK

[App page](https://appshunter.io/ios/app/yinmik/id1590106540)

This utility app facilitates the easy recording and real-time transmission of test data via Bluetooth. It offers features like data calibration, automatic or manual saving, and sharing to popular messaging platforms, along with access to a product catalog.

**Highlights:** Simple installation and operation, Real-time Bluetooth data transmission, Customizable calibration points, Automatic and manual data saving, Data sharing to third-party platforms, Product catalog access

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is YINMIK free?

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

### Is Mars Hydro free?

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

### Which has better reviews, YINMIK or Mars Hydro?

Mars Hydro is rated higher. YINMIK averages 1.9 out of 5 from 23 ratings, while Mars Hydro averages 2.6 from 27 ratings.

### Do YINMIK or Mars Hydro have ads?

Neither YINMIK nor Mars Hydro shows ads.

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

YINMIK ships an update every 6 weeks, and Mars Hydro monthly. Most recently, YINMIK was updated on September 21, 2026 and Mars Hydro on August 11, 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.*