# Mars Rock E vs Chargium

Mars Rock E and Chargium are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mars Rock E ships an update monthly, Chargium every 3 weeks. The most recent releases landed on September 15, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Mars Rock E | Chargium |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 22 MB | 115 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Xiamen Mars Rock Science Technology Co.,Ltd](https://appshunter.io/developer/1787113189) | [Evoltsoft Technologies Private Limted](https://appshunter.io/developer/1723389563) |

## What reviewers say

### Mars Rock E

[App page](https://appshunter.io/ios/app/mars-rock-e/id6739800863)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chargium

[App page](https://appshunter.io/ios/app/chargium/id6767569016)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mars Rock E free?

Mars Rock E is free to download, with no in-app purchases.

### Is Chargium free?

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

### Do Mars Rock E or Chargium have ads?

Neither Mars Rock E nor Chargium shows ads.

### Which is updated more often, Mars Rock E or Chargium?

Mars Rock E ships an update monthly, and Chargium every 3 weeks. Most recently, Mars Rock E was updated on September 15, 2026 and Chargium on September 26, 2026.

---

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