# Renogy vs Fourth Space

The clearest difference is review sentiment: Renogy at 11% against Fourth Space's 0%. Renogy also leads on iOS requirement (13.0 vs 15.0). 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.

Renogy ships an update every 2 weeks, Fourth Space fortnightly. The most recent releases landed on September 26, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Renogy | Fourth Space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (806 ratings)](https://appshunter.io/ios/app/renogy/id1495327014/reviews)** | — |
| Number of ratings | **806** | — |
| Positive reviews | **10.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 74 MB | 12 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 9+ |
| Developer | [Renogy Suzhou Co.,Ltd.](https://appshunter.io/developer/1490992894) | [第肆空间(深圳)创新科技有限公司](https://appshunter.io/developer/1766639077) |

## What reviewers say

### Renogy

[App page](https://appshunter.io/ios/app/renogy/id1495327014)

Monitor your off-grid solar energy systems in real-time, configure devices remotely, and connect with a community of solar enthusiasts. Share your DIY projects, learn from others, and access exclusive promotions and rewards.

**Highlights:** Real-time energy monitoring, Device settings configuration, Online DIY learning and sharing, Exclusive rewards and promotions, Access to online store

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to set up and configure
- 🚀 Plug and go functionality
- 🔋 Decent battery monitoring

**What reviewers complain about**

- 🐛 Frequent connectivity issues
- 🔍 Inaccurate or missing data
- 📱 Requires internet connection to function
- 🤖 Overly complex UI with unnecessary features

**Reported bugs**

- App crashes on launch after updates
- Login/account creation issues
- Bluetooth pairing problems

**Requested features**

- Detailed battery health and usage history
- Customizable alerts and notifications
- Apple Watch support
- Offline mode for remote monitoring


### Fourth Space

[App page](https://appshunter.io/ios/app/fourth-space/id6670521483)

Control your air conditioner remotely with this app. Adjust temperature, fan speed, mode, and power settings for a convenient smart home experience.

**Highlights:** Remote air conditioner control, Turn on/off AC, Adjust temperature, Set fan speed, Change operating mode

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Renogy free?

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

### Is Fourth Space free?

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

### Do Renogy or Fourth Space have ads?

Neither Renogy nor Fourth Space shows ads.

### Which is updated more often, Renogy or Fourth Space?

Renogy ships an update every 2 weeks, and Fourth Space fortnightly. Most recently, Renogy was updated on September 26, 2026 and Fourth Space on September 3, 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.*