SimpleX

about

description

<h1>SimpleX - the first messaging platform that has no user identifiers, not even random numbers!</h1> <p><a href="https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.html" target="_blank">Security assessment</a> was done by Trail of Bits in November 2022.</p> <p>SimpleX Chat features:</p> <ul> <li>end-to-end encrypted messages, with editing, replies and deletion of messages.</li> <li>sending end-to-end encrypted images and files.</li> <li>single-use and long-term user addresses.</li> <li>secret chat groups - only group members know it exists and who is the member.</li> <li>end-to-end encrypted audio and video calls.</li> <li>private instant notifications.</li> <li>portable chat profile - you can transfer your chat contacts and history to another device (terminal or mobile).</li> </ul> <p>SimpleX Chat advantages:</p> <ul> <li><strong>Full privacy of your identity, profile, contacts and metadata</strong>: unlike any other existing messaging platform, SimpleX uses no phone numbers or any other identifiers assigned to the users - not even random numbers. This protects the privacy of who you are communicating with, hiding it from SimpleX platform servers and from any observers.</li> <li><strong>Complete protection against spam and abuse</strong>: as you have no identifier on SimpleX platform, you cannot be contacted unless you share a one-time invitation link or an optional temporary user address.</li> <li><strong>Full ownership, control and security of your data</strong>: SimpleX stores all user data on client devices, the messages are only held temporarily on SimpleX relay servers until they are received.</li> <li><strong>Decentralized network</strong>: you can use SimpleX with your own servers and still communicate with people using the servers that are pre-configured in the apps or any other SimpleX servers.</li> </ul> <p>You can connect to anybody you know via link or scan QR code (in the video call or in person) and start sending messages instantly - no emails, phone numbers or passwords needed.</p> <p>Your profile and contacts are only stored in the app on your device - our servers do not have access to this information.</p> <p>All messages are end-to-end encrypted using open-source double-ratchet protocol; the messages are routed via our servers using open-source SimpleX Messaging Protocol.</p> <p>Please send us any questions via the app (connect to the team via settings!), <a href="mailto:chat@simplex.chat?subject=SimpleX Chat on F-Droid">email us</a> or submit an <a href="https://github.com/simplex-chat/simplex-chat/issues" target="_blank">issue on GitHub</a>.</p> <p>Follow us on Mastodon (<a href="https://mastodon.social/@simplex" target="_blank">@simplex@mastodon.social</a>), Twitter (<a href="https://twitter.com/SimpleXChat" target="_blank">@SimpleXChat</a>) and Reddit (<a href="https://www.reddit.com/r/SimpleXChat/" target="_blank">r/SimpleXChat</a>) for the latest updates.</p> <p>Once you install SimpleX Chat, join the group of users via <a href="https://simplex.chat/contact#/?v=1-2&smp=smp%3A%2F%2Fu2dS9sG8nMNURyZwqASV4yROM28Er0luVTx5X1CsMrU%3D%40smp4.simplex.im%2FWHV0YU1sYlU7NqiEHkHDB6gxO1ofTync%23%2F%3Fv%3D1-2%26dh%3DMCowBQYDK2VuAyEAWbebOqVYuBXaiqHcXYjEHCpYi6VzDlu6CVaijDTmsQU%253D%26srv%3Do5vmywmrnaxalvz6wi3zicyftgio6psuvyniis6gco6bp6ekl4cqj4id.onion&data=%7B%22type%22%3A%22group%22%2C%22groupLinkId%22%3A%22mL-7Divb94GGmGmRBef5Dg%3D%3D%22%7D" target="_blank">this link</a> to share your ideas and feedback.</p>

publisher

78ce6faa72264387284e647ba6938995735ec8c7d5c5a65737e55130f026307d

first seen

2026-09-28T17:37:48.796952+00:00

last event

2026-10-08 17:18 UTC

install

zapstore.dev or any Zapstore-compatible client

source & build

repository

https://github.com/simplex-chat/simplex-chat

arch flags

android-arm64-v8a

manifest

missing

releases (kind 30063)

1 release indexed; latest 7.0.3.

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

7.0.3 — simplex-aarch64.apk

sha256

d535e5a8986d4e11b9abd5656a3c0e1be5a08e06b00a7b20d6b7587ed0c3457f

size

83.5 MB

archs

android-arm64-v8a

version code

381

apk cert sha256

3c52c4fd3cad1c07c9b00a7080e358fab9fefcb8af5aec147765f16d0f21ad85

download

simplex-aarch64.apk

Showing the newest 1 asset descriptor; the full set is in /api/apps/78ce6faa…