Welcome to Simlar!
Simlar is a secure, free mobile app designed for private voice calls over the internet. By using end-to-end encryption via the ZRTP protocol, Simlar ensures that your conversations stay confidential and protected from eavesdropping. It automatically detects which of your contacts also use Simlar and connects you instantly. Available on Android and iOS, Simlar is easy to use, cost-free, and open-source—making it a reliable solution for anyone prioritizing secure communication. Download Simlar now!
Key Features:
End-to-End Encryption (ZRTP Protocol):All calls are encrypted, ensuring no one—including Simlar itself—can listen in. ZRTP protects against man-in-the-middle attacks.
Automatic Contact Detection:
Simlar shows you which of your existing contacts already use the app, making it easy to start calling securely.
Tap-Proof Communication:
A short verification code is shown during the first call with each contact. Verifying this ensures that the line is secure.
Cross-Platform Compatibility:
Available for both Android and iOS, so users can securely communicate regardless of their device.
Completely Free:
No fees, subscriptions, or in-app purchases. Simlar only requires an internet connection and uses minimal data (about 1 MB for a 2-minute call).
Open Source & Community Driven:
The source code is public and maintained by the community, which promotes transparency and continuous development.
Top 5 FAQs on Simlar:
1. How does Simlar ensure my calls are secure?Answer: Simlar uses the ZRTP protocol, which provides strong end-to-end encryption. Only you and the person you're calling can hear the conversation. Even Simlar cannot decrypt your calls.
2. What is the short code I see during a call?
Answer: This short code is a part of the security verification process. You and your contact can compare the code during your first call to confirm that no one is intercepting the call (man-in-the-middle protection).
3. Do both users need Simlar installed to make a call?
Answer: Yes, both users must have the Simlar app installed. Once both parties have the app, it automatically shows up in your contact list for easy calling.
4. Is Simlar really free to use?
Answer: Yes. There are no hidden charges or in-app purchases. All you need is a stable internet connection (WiFi or mobile data) to make calls.
5. Can I use Simlar while traveling or abroad?
Answer: Absolutely. As long as you have an internet connection, Simlar works anywhere in the world, making it great for international private calls without roaming fees.
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Version Historyv2.12.0——19 Jan 2025
• Use post quantum encryption
• Improve Call establishment
• Linphone Sdk Update 5.3.84
• Validate more international telephone numbers
• Small improvements and fixes
