# EM3720 vs Omniclock

The clearest difference is device support: EM3720 at 3 against Omniclock's 1. EM3720 also leads on iOS requirement (11.0 vs 17.0). 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.

EM3720 ships an update every 4 months, Omniclock every 6 months. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | EM3720 | Omniclock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Size | 6 MB | 21 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [ZHANGZHOU EASTERN INTELLIGENT METER CO., LTD.](https://appshunter.io/developer/1064839954) | [los.software GmbH](https://appshunter.io/developer/1668332988) |

## What reviewers say

### EM3720

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Omniclock

[App page](https://appshunter.io/ios/app/omniclock-analog-timer/id6618145863)

**In-app purchases:** none


## Frequently asked questions

### Is EM3720 free?

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

### Is Omniclock free?

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

### Do EM3720 or Omniclock have ads?

Neither EM3720 nor Omniclock shows ads.

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

EM3720 ships an update every 4 months, and Omniclock every 6 months. Most recently, EM3720 was updated on October 26, 2026 and Omniclock on October 30, 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.*