# Harmonys Notify vs CET

The clearest difference is update cadence: CET at every 4 months against Harmonys Notify's every 36 months. 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.

Harmonys Notify ships an update every 36 months, CET every 4 months. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Harmonys Notify | CET |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 4 months** |
| Size | 52 MB | 31 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bodet SA](https://appshunter.io/developer/1270191614) | [HIMOINSA SL](https://appshunter.io/developer/1618422755) |

## What reviewers say

### Harmonys Notify

[App page](https://appshunter.io/ios/app/harmonys-notify/id1270191615)

**Features:** macOS Compatibility

**In-app purchases:** none


### CET

[App page](https://appshunter.io/ios/app/cet-8/id1618422753)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Harmonys Notify free?

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

### Is CET free?

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

### Do Harmonys Notify or CET have ads?

Neither Harmonys Notify nor CET shows ads.

### Which is updated more often, Harmonys Notify or CET?

Harmonys Notify ships an update every 36 months, and CET every 4 months. Most recently, Harmonys Notify was updated on September 10, 2026 and CET on September 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.*