# modulus SoftPhone vs KidDoo!

The clearest difference is update cadence: KidDoo! at every 4 days against modulus SoftPhone's every 6 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.

modulus SoftPhone ships an update every 6 months, KidDoo! every 4 days. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | modulus SoftPhone | KidDoo! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/modulus-softphone/id1562146672/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 107 MB | 66 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [MODULUS TELECOMS & IT SA](https://appshunter.io/developer/1562146674) | [Loic Zimmermann](https://appshunter.io/developer/1751293593) |

## What reviewers say

### modulus SoftPhone

[App page](https://appshunter.io/ios/app/modulus-softphone/id1562146672)

This application provides a simple SIP softphone experience, specifically configured to integrate with your modulus account. It allows for easy communication management through a user-friendly interface.

**Highlights:** SIP SoftPhone functionality, Modulus account integration, Easy to use interface, VoIP calling

**In-app purchases:** none


### KidDoo!

[App page](https://appshunter.io/ios/app/kiddoo/id6505066728)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is modulus SoftPhone free?

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

### Is KidDoo! free?

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

### Do modulus SoftPhone or KidDoo! have ads?

Neither modulus SoftPhone nor KidDoo! shows ads.

### Which is updated more often, modulus SoftPhone or KidDoo!?

modulus SoftPhone ships an update every 6 months, and KidDoo! every 4 days. Most recently, modulus SoftPhone was updated on October 7, 2026 and KidDoo! on September 29, 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.*