# BLUETTI vs Fourth Space

The clearest difference is review sentiment: BLUETTI at 66% against Fourth Space's 0%. BLUETTI also leads on iOS requirement (11.0 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.

BLUETTI ships an update every 3 weeks, Fourth Space fortnightly. The most recent releases landed on September 27, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | BLUETTI | Fourth Space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (1.5K ratings)](https://appshunter.io/ios/app/bluetti/id1550568336/reviews)** | — |
| Number of ratings | **1.5K** | — |
| Positive reviews | **66.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 272 MB | 12 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Shenzhen Poweroak Newener Co., Ltd.](https://appshunter.io/developer/1281393663) | [第肆空间(深圳)创新科技有限公司](https://appshunter.io/developer/1766639077) |

## What reviewers say

### BLUETTI

[App page](https://appshunter.io/ios/app/bluetti/id1550568336)

Manage your portable power station remotely. Monitor real-time energy usage, adjust settings for optimal performance, and receive instant alerts. Schedule charging and keep your device updated with the latest firmware.

**Highlights:** Real-time power monitoring, Remote setting adjustments, Instant status alerts, Scheduled charging, Firmware updates, User forum

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick connection
- 💡 Useful features
- 🔋 Reliable power backup

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔒 Forced account login
- 🤔 Cluttered interface
- 🔋 Battery drain issues

**Reported bugs**

- Bluetooth pairing problems
- Inconsistent WiFi connectivity
- Incorrect data reporting
- Forced app updates

**Requested features**

- Landscape mode support
- Estimated time remaining
- Customizable notifications
- Improved data analytics


### 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 BLUETTI free?

BLUETTI 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 BLUETTI or Fourth Space have ads?

Neither BLUETTI nor Fourth Space shows ads.

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

BLUETTI ships an update every 3 weeks, and Fourth Space fortnightly. Most recently, BLUETTI was updated on September 27, 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.*