# Extragiga Drive vs EM3720

The clearest difference is update cadence: Extragiga Drive at every 3 weeks against EM3720's every 4 months. Extragiga Drive also leads on iOS requirement (8.0 vs 11.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Extragiga Drive ships an update every 3 weeks, EM3720 every 4 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Extragiga Drive | EM3720 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Size | 34 MB | 6 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [zhong qibiao](https://appshunter.io/developer/1118837284) | [ZHANGZHOU EASTERN INTELLIGENT METER CO., LTD.](https://appshunter.io/developer/1064839954) |

## What reviewers say

### Extragiga Drive

[App page](https://appshunter.io/ios/app/extragiga-drive/id1165677739)

**Features:** macOS Compatibility

**In-app purchases:** none


### EM3720

[App page](https://appshunter.io/ios/app/em3720/id1376380656)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Extragiga Drive free?

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

### Is EM3720 free?

EM3720 is free to download, with no in-app purchases.

### Do Extragiga Drive or EM3720 have ads?

Neither Extragiga Drive nor EM3720 shows ads.

### Which is updated more often, Extragiga Drive or EM3720?

Extragiga Drive ships an update every 3 weeks, and EM3720 every 4 months. Most recently, Extragiga Drive was updated on November 6, 2026 and EM3720 on November 2, 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.*