Simlar - secure calls 4+

Ben Sartor

Designed for iPad

    • 2.3 • 3 Ratings
    • Free



Protect your privacy and make free mobile phone calls over the internet with Simlar. Your calls are fully encrypted. Simlar is very easy to use. Just select your contact and call them! After installation, all of your contacts who also use Simlar will be listed in the app automatically. Maybe some of your friends already have Simlar. It is also available for other smartphone platforms.

Simlar is based on the established end-to-end encryption protocol ZRTP. No one can listen to your conversation, not even us. During your first call, you need to match a short code with the person you are speaking to. This protects against man-in-the-middle attacks and only needs to be done once per contact. The app development is driven by the open source community. You can find the source code at

Simlar is free of charge. All you need is an internet connection. The
more stable your connection is, the better is your sound quality. The average “traffic”
corresponds to 1 megabyte for a 2-minute call. For more details see

What’s New

Version 2.6.0

* Use post quantum encryption
* Greatly improve call connection establishment
* Linphone Sdk Update 5.2.11
* Validate more international telephone numbers
* Small improvements and fixes

Ratings and Reviews

2.3 out of 5
3 Ratings

3 Ratings

Lexuormsjj ,

No tech support

The app is stuck halfway in loading mode. I tried deleting and reinstalling multiple times but it's already tied to my number. Wrote to tech support weeks ego. No response. No help.

Developer Response ,

We are very sorry to hear that you did not receive any response to your mails. Unfortunately, Gmail started to mark our answers as spam without informing us about this fact.
Regarding your problem, the upcoming release of Simlar will fix a problem with big address books.

akapln57 ,

Good app. Only they have to add messenger.

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

Heklbg381 ,

App crashes and never installs or loads

Tried reinstalling over 20 times...

Developer Response ,

We are very sorry that Simlar does not work as expected. Could it be that your address book is quite big? That is, there are a few hundreds or thousands of contacts in it? If so, the upcoming version of Simlar will fix this problem.

App Privacy

The developer, Ben Sartor, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Contact Info

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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