# Spider Farmer vs Mars Hydro

The clearest difference is rating: Spider Farmer at 3.1 against Mars Hydro's 2.6. Spider Farmer also leads on review sentiment (40% vs 24%) and ratings volume (114 vs 27). 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.

Spider Farmer holds the better App Store score, 3.1 against 2.6. Both are backed by a comparable volume of ratings — 114 and 27 respectively. Written reviews point the same way: 40% of Spider Farmer's written reviews are positive against 24% of Mars Hydro's.

Spider Farmer ships an update every 5 weeks, Mars Hydro monthly. The most recent releases landed on September 21, 2026 and August 11, 2026 respectively.

## The numbers

| Metric | Spider Farmer | Mars Hydro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (114 ratings)](https://appshunter.io/ios/app/spider-farmer/id6476436750/reviews)** | [2.6 (27 ratings)](https://appshunter.io/ios/app/mars-hydro/id6479227564/reviews) |
| Number of ratings | **114** | 27 |
| Positive reviews | **40.1% of reviews** | 23.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free | Free |
| Size | 61 MB | 45 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HY AGRICULTURE WHOLESALE LIMITED](https://appshunter.io/developer/1726713107) | [MARS TRADING RCC, INC.](https://appshunter.io/developer/1726858942) |

## What reviewers say

### Spider Farmer

[App page](https://appshunter.io/ios/app/spider-farmer/id6476436750)

Control your indoor grow environment with precision and ease. This app offers intuitive controls and real-time insights to optimize plant cultivation, leading to smarter and more sustainable yields.

**Highlights:** Precision grow environment control, Real-time insights, Intuitive controls, Optimize plant cultivation, Smarter yields, Sustainable yields

**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 Spider Farmer free?

Spider Farmer 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, Spider Farmer or Mars Hydro?

Spider Farmer is rated higher. Spider Farmer averages 3.1 out of 5 from 114 ratings, while Mars Hydro averages 2.6 from 27 ratings.

### Do Spider Farmer or Mars Hydro have ads?

Neither Spider Farmer nor Mars Hydro shows ads.

### Which is updated more often, Spider Farmer or Mars Hydro?

Spider Farmer ships an update every 5 weeks, and Mars Hydro monthly. Most recently, Spider Farmer was updated on September 21, 2026 and Mars Hydro on August 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*