Rendall Zero
Simple and secure
Rendall Zero is a simple application for secure audio and video calls, as well as instant messaging and files..

All data is transmitted encrypted during the limited time of the chat, after which all the information, including the fact of communication, is permanently deleted.
Invite an Interlocutor
Send him the one-time code from Rendall Zero, or copy and share the code in any other way.
Speak safe
The interlocutor just needs to follow the link to start communication. Exchange encrypted instant messages, files, and make voice and video calls within 10-minute session.
Complete session
Communication time in Rendall Zero is limited to 10 minutes. At the end of the chat, all information exchanged by the interlocutors is irretrievably deleted.
How it works?
3 factors of security
App doesn't store
contacts or chat history
At the end of the chat, no traces of your conversation are saved. That minimizes the risk of information leakage.
End-2-End encryption
Strong encryption algorithms AES and RSA. Any attempt to intercept the data becomes useless.
We do not collect
or store your personal data
Your communication is completely anonymous and protected from social engineering.
Install the app
and send the code
No settings and accounts with usernames and passwords
Strong encryption and automatic data removing
Perfect Quality
Crystal-clear sound and connection stability
Publish a one-time link instead of your phone number on social media and where else you need to protect your privacy. No transfer of personal data for a single communication with the interlocutor.
User cases
Invite new users to confidential talk easily with full respect for their privacy and time.
Interviews of your customers and employees. Use Rendall Zero for online consulting, ensure privacy and personal data protection of your clients.
Partner with us
Rendall Authorized Media Partner
Become Rendall Media Partner and be a member of our global community of cybersecurity professionals. Get involved in our events online and offline, gain access to our latest research, articles, newsletters, offers and product updates. Join us in cross-promotion whilst gaining a new, audience for your own.
Rendall Authorized Security Tester
Being pro-active rather than re-active to emerging security issues is a fundamental belief of Rendall team. We appreciate all security concerns brought forth and are constantly striving to keep on top of the latest state-of-the-art security developments. No technology is perfect, and we believe that working with skilled security researchers and companies across the globe is crucial in identifying weaknesses in any technology. Become Rendall Security Tester an earn money rewards participating in our Bug Bounty program.
Rendall Authorized Solution Provider
Rendall Solution Providers are reseller partners with wide areas of expertise in Rendall security solutions, especially enterprise level. As a solution provider, you will gain access to a large set of benefits – tools, pricing discounts, incentive rebates and sales, technical and marketing support, offers and product updates – designed to help you drive sales revenue and grow your business. You will also have the inside track on trending security issues, new technologies, and products. As your commitment to us grows, you have the ability to access additional benefits. Partner with Rendall to deliver state-of-the-art, high quality security solutions and services to your customer.
Rendall Authorized Online Reseller
Become our commercial partner to promote on-line sales of Rendall secure solutions for teams and private communities. Join us to help people to ensure privacy and security globally.
We appreciate your efforts in creating a more secure world.
Apply form now
Contact us:
Phone: +41 79 921 77 77
Rendall AG c/o Baarerstrasse 8 6302 Zug, Switzerland

Do you have some questions? Contact us!

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