This is the arm64-v8a build of SimpleX Chat 6.4.5 — the modern 64-bit ARM build that runs on virtually every Android phone released since 2017. It's smaller and faster than the universal variant because Android only loads the native code your CPU actually needs. If your phone is from the last 8 years, this is the right pick.
File size: 70.6 MB • Min Android: 26 • Target Android: 34 • Version code: 320 • Framework: Native (Java/Kotlin) • Permissions: 21
Screenshots
File Information
| Package Name | chat.simplex.app |
|---|---|
| Version Name | 6.4.5 |
| Version Code | 320 |
| Architecture | arm64-v8a |
| Min Android Version | Android 26 (API 34) |
| Main Activity | chat.simplex.app.MainActivity_default |
| Framework | Native (Java/Kotlin) |
| File Size | 70.64 MB |
| Signature (SHA1) | 187C96C32CC8259CD082E6A89843E6D937DBF836 |
| File Hash (SHA256) | 1ea7939dd98e7223eaa0980fbd5192d78af949877051f5636391a32ad4542bbf |
App Description
SimpleX - the first messaging platform that has no user identifiers, not even random numbers!
Security assessment
was done by Trail of Bits in November 2022.
SimpleX Chat features:
end-to-end encrypted messages, with editing, replies and deletion of messages.
sending end-to-end encrypted images and files.
single-use and long-term user addresses.
secret chat groups - only group members know it exists and who is the member.
end-to-end encrypted audio and video calls.
private instant notifications.
portable chat profile - you can transfer your chat contacts and history to another device (terminal or mobile).
SimpleX Chat advantages:
Full privacy of your identity, profile, contacts and metadata
: 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.
Complete protection against spam and abuse
: 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.
Full ownership, control and security of your data
: SimpleX stores all user data on client devices, the messages are only held temporarily on SimpleX relay servers until they are received.
Decentralized network
: 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.
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.
Your profile and contacts are only stored in the app on your device - our servers do not have access to this information.
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.
Please send us any questions via the app (connect to the team via settings!),
email us
or submit an
issue on GitHub
.
Follow us on Mastodon (
@simplex@mastodon.social
), Twitter (
@SimpleXChat
) and Reddit (
r/SimpleXChat
) for the latest updates.
Once you install SimpleX Chat, join the group of users via
this link
to share your ideas and feedback.
License:
GNU Affero General Public License v3.0 or later
Website
Issue Tracker
Translation
Source Code
Changelog
Build Metadata
Reproducibility Status
Security assessment
was done by Trail of Bits in November 2022.
SimpleX Chat features:
end-to-end encrypted messages, with editing, replies and deletion of messages.
sending end-to-end encrypted images and files.
single-use and long-term user addresses.
secret chat groups - only group members know it exists and who is the member.
end-to-end encrypted audio and video calls.
private instant notifications.
portable chat profile - you can transfer your chat contacts and history to another device (terminal or mobile).
SimpleX Chat advantages:
Full privacy of your identity, profile, contacts and metadata
: 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.
Complete protection against spam and abuse
: 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.
Full ownership, control and security of your data
: SimpleX stores all user data on client devices, the messages are only held temporarily on SimpleX relay servers until they are received.
Decentralized network
: 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.
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.
Your profile and contacts are only stored in the app on your device - our servers do not have access to this information.
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.
Please send us any questions via the app (connect to the team via settings!),
email us
or submit an
issue on GitHub
.
Follow us on Mastodon (
@simplex@mastodon.social
), Twitter (
@SimpleXChat
) and Reddit (
r/SimpleXChat
) for the latest updates.
Once you install SimpleX Chat, join the group of users via
this link
to share your ideas and feedback.
License:
GNU Affero General Public License v3.0 or later
Website
Issue Tracker
Translation
Source Code
Changelog
Build Metadata
Reproducibility Status
Download SimpleX Chat APK
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APK Permissions 21
- android.permission.ACCESS_NETWORK_STATE
- android.permission.CAMERA
- android.permission.FOREGROUND_SERVICE
- android.permission.FOREGROUND_SERVICE_CAMERA
- android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK
- android.permission.FOREGROUND_SERVICE_MICROPHONE
- android.permission.FOREGROUND_SERVICE_REMOTE_MESSAGING
- android.permission.INTERNET
- android.permission.MODIFY_AUDIO_SETTINGS
- android.permission.POST_NOTIFICATIONS
- android.permission.RECEIVE_BOOT_COMPLETED
- android.permission.RECORD_AUDIO
- android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
- android.permission.USE_BIOMETRIC
- android.permission.USE_FINGERPRINT
- android.permission.USE_FULL_SCREEN_INTENT
- android.permission.VIBRATE
- android.permission.VIDEO_CAPTURE
- android.permission.WAKE_LOCK
- android.permission.WRITE_EXTERNAL_STORAGE
- chat.simplex.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
APK Verified
The cryptographic signature guarantees that the file is safe to install and was not tampered with in any way.
Frequently Asked Questions about SimpleX Chat APK
This variant is built for 64-bit ARM (most Android phones made since 2017). If your device's CPU matches, this is the smallest, fastest version to install.
Yes — the APK's signature has been cryptographically verified against the publisher's signing key. The SHA-256 hash is shown in the File Information panel so you can independently confirm the file matches the original release.
Android 26 (API level 34) or newer. Older devices will refuse the install.
Install a free app like 'CPU-Z' or 'Droid Hardware Info' from the Play Store and look at the ABI / Instruction Set row. Most phones made after 2017 are arm64-v8a; if in doubt, download the universal variant.
All variants are functionally identical — same features, same version. They differ only in which CPU architectures the native code is compiled for, and (sometimes) which screen densities the included graphics target. Pick the one that matches your device for the smallest install size, or pick 'Universal' if you're unsure.