# WORLD4SOLAR vs Acloud EOS

The clearest difference is iOS requirement: WORLD4SOLAR at 13.0 against Acloud EOS's 15.6. 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.

WORLD4SOLAR ships an update every 5 weeks, Acloud EOS monthly. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | WORLD4SOLAR | Acloud EOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Size | 85 MB | 114 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Chengdu E-Linter Information Technology Co., Ltd.](https://appshunter.io/developer/1149235329) | [AdvanSol Power Technology Co., Ltd](https://appshunter.io/developer/1722057524) |

## What reviewers say

### WORLD4SOLAR

[App page](https://appshunter.io/ios/app/world4solar/id6475158489)

**Features:** macOS Compatibility

**In-app purchases:** none


### Acloud EOS

[App page](https://appshunter.io/ios/app/acloud-eos/id6737940932)

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

**In-app purchases:** none


## Frequently asked questions

### Is WORLD4SOLAR free?

WORLD4SOLAR is free to download, with no in-app purchases.

### Is Acloud EOS free?

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

### Do WORLD4SOLAR or Acloud EOS have ads?

Neither WORLD4SOLAR nor Acloud EOS shows ads.

### Which is updated more often, WORLD4SOLAR or Acloud EOS?

WORLD4SOLAR ships an update every 5 weeks, and Acloud EOS monthly. Most recently, WORLD4SOLAR was updated on October 30, 2026 and Acloud EOS on November 8, 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.*