Simlar - secure calls

Simlar - secure calls

by Ben Sartor

3 ratings
21 reviews
Free

Details

  • Released
  • Updated
  • January 21, 2015
  • July 24, 2025

Features

Simlar - secure calls screenshot #1 for iPhone
Simlar - secure calls screenshot #2 for iPhone
Simlar - secure calls screenshot #3 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

Make fully encrypted, free mobile calls over the internet. This app automatically lists contacts who also use it. It's easy to use and based on a secure open-source protocol.

Free internet calls
End-to-end encryption
Automatic contact syncing
Easy to use interface
Open-source development
Cross-platform availability
Show original description

What's New in Simlar

2.8.2

July 24, 2025

* Use post quantum encryption * Linphone Sdk Update 5.3.110 * Validate more international telephone numbers * Small improvements and fixes

More

User reviews

Easy to handle

Übersichtlich und einfach gestaltet, alles so wie erwartet :)

Good app. Only they have to add messenger.

Very good App. But they have to add Messenger, otherwise it looks incomplete.

Wenn mich jemand anruft dann dann keine Reaktion der App

Angerufen werden geht nicht. Anrufen geht.

Перестаёт работать через 30 секунд

Через 30 секунд после разговора с собеседником просто пропадает звук(((( А я так любил эту программу. Прошу дать комментарий, как устранить ошибку

Nicht anonym

Benutze die App Kedr. Ist gleich, nur mit chat und es ist anonym, da man die rufnummer nicht eingeben muss (ist freiwillig), sondern nur einen spitznamen.

FAQ

What is Simlar?

Simlar is a free application that allows users to make fully encrypted mobile phone calls over the internet. It is based on the ZRTP end-to-end encryption protocol for enhanced privacy.

How does Simlar ensure call security?

Simlar uses the ZRTP protocol for end-to-end encryption, meaning no one, not even the developers, can listen to your conversations. A one-time code matching process is required per contact to prevent man-in-the-middle attacks.

Is Simlar free to use?

Yes, Simlar is completely free of charge. The only requirement is an internet connection to make calls.

How does Simlar handle contacts?

After installation, Simlar automatically lists contacts who also have the app installed on their devices, making it easy to initiate calls with them.

What are the system requirements for Simlar?

Simlar is available for iPhone, iPad, and iPod devices. It requires an internet connection for calls, and stable connections improve sound quality.

How often is Simlar updated?

The latest version of Simlar is 2.8.2, which was last updated on July 24, 2025. The app's development is driven by the open-source community.

What is the user sentiment for Simlar?

Simlar has a rating of 2.3 stars from 3 ratings, indicating a mixed to negative user reception based on the limited available data.

Does Simlar have ads?

No, Simlar does not contain advertisements. It is a free application that relies solely on an internet connection for its functionality.