# SAT Messenger vs D5 Space

The clearest difference is iOS requirement: D5 Space at 11.0 against SAT Messenger's 13.0. 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.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on August 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | SAT Messenger | D5 Space |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 51 MB | 52 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [phwy](https://appshunter.io/developer/1687040072) | [Beijing Sylincom Hypermedia Technology Co., Ltd](https://appshunter.io/developer/1467162647) |

## What reviewers say

### SAT Messenger

[App page](https://appshunter.io/ios/app/sat-messenger/id6448937534)

**Features:** macOS Compatibility

**In-app purchases:** none


### D5 Space

[App page](https://appshunter.io/ios/app/d5-space/id6474482115)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SAT Messenger free?

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

### Is D5 Space free?

D5 Space is free to download, with no in-app purchases.

### Do SAT Messenger or D5 Space have ads?

Neither SAT Messenger nor D5 Space shows ads.

### Which is updated more often, SAT Messenger or D5 Space?

SAT Messenger ships an update every 2 weeks, and D5 Space every 2 weeks. Most recently, SAT Messenger was updated on August 10, 2026 and D5 Space on September 8, 2026.

---

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