# Serenity vs Diametre

The clearest difference is review sentiment: Diametre at 50% against Serenity's 0%. Serenity's advantage is iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

## The numbers

| Metric | Serenity | Diametre |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free | Free |
| Size | 158 MB | 28 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Avosdim](https://appshunter.io/developer/1352845967) | [franck bertaux](https://appshunter.io/developer/1806891800) |

## What reviewers say

### Serenity

[App page](https://appshunter.io/ios/app/serenity/id1352845968)

Control your Avosdim Serenity alarm system remotely. Arm, disarm, program settings, add accessories, and manage alerts and user access from a simple interface.

**Highlights:** Remote alarm control, Arm and disarm system, Program settings, Add accessories, Manage alerts, User access management

**Features:** macOS Compatibility

**In-app purchases:** none


### Diametre

[App page](https://appshunter.io/ios/app/diametre/id6747874263)

Easily calculate the diameter of your roller shutter or blind axis without disassembly or measuring tools. This practical utility app provides a simple solution for accurate measurements.

**Highlights:** Calculate roller shutter axis diameter, Calculate blind axis diameter, No disassembly required, No caliper needed, Simple and practical interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Serenity free?

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

### Is Diametre free?

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

### Do Serenity or Diametre have ads?

Neither Serenity nor Diametre shows ads.

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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.*