# EM3720 vs KANE555

The clearest difference is update cadence: EM3720 at every 4 months against KANE555's every 9 months. EM3720 also leads on iOS requirement (11.0 vs 13.0). 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.

EM3720 ships an update every 4 months, KANE555 every 9 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | EM3720 | KANE555 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Size | 6 MB | 10 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ZHANGZHOU EASTERN INTELLIGENT METER CO., LTD.](https://appshunter.io/developer/1064839954) | [Kane Asia Inc.](https://appshunter.io/developer/1542732944) |

## What reviewers say

### EM3720

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

**Features:** macOS Compatibility

**In-app purchases:** none


### KANE555

[App page](https://appshunter.io/ios/app/kane555/id1599050540)

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

**In-app purchases:** none


## Frequently asked questions

### Is EM3720 free?

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

### Is KANE555 free?

KANE555 is free to download, with no in-app purchases.

### Do EM3720 or KANE555 have ads?

Neither EM3720 nor KANE555 shows ads.

### Which is updated more often, EM3720 or KANE555?

EM3720 ships an update every 4 months, and KANE555 every 9 months. Most recently, EM3720 was updated on November 2, 2026 and KANE555 on November 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.*