Smoke

F-Droid Open Source | Internet

8 Downloads 16 Views v2023.1 7.99 MB 4.1+

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(7.99 MB)

Editor's Overview

Smoke is a internet application developed by F-Droid Open Source, packaged as a single Android APK of version 2023.1 weighing in at 7.99 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
File size is a light 7.99 MB, so it installs quickly even on modest connections.
This build is signed by "F-Droid Open Source" — always verify the developer name matches what's listed on the app's official store page before installing an update.
After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

Summary of Smoke

* Aliases. Preserve your contacts.
* Almost zero-dependency software.
* Application lock.
* Argon2id and PBKDF2 key-derivation functions.
* Automatic, oscillatory public-key exchange protocol, via SipHash.
* BSD 3-clause license.
* Completed.
* Content is recorded via authenticated encryption.
* Decentralized. TCP, and UDP multicast and unicast.
* Does not require Internet connectivity.
* Does not require registration. Telephone numbers are not required.
* Encrypted communications.
* Eventful tasks. Limited polling.
* F-Droid.
* Fiasco forward secrecy.
* Future-proof software.
* Introduces Cryptographic Discovery. Cryptographic Discovery is a
practical protocol which creates coordinated data paths.
* Juggling Juggernaut Protocol!
* Manufactured tool tips!
* McEliece Fujisaka and Pointcheval.
* Message structures do not explicitly expose contents. Header-less protocols!
Some messages do include type information.
* Mobile servers via SmokeStack.
* Obfuscation of resident secret keys.
* Optional foreground services.
* Optional silence over the wires.
* Original implementation of SipHash.
* Ozone destinations: private and public repositories.
* Post offices for messages of the past.
* Private servers.
* Public and private public-key servers.
* Rainbow digital signature scheme.
* Reliable distribution of archived messages.
* Reliable distribution of deliverable text messages.
* SPHINCS digital signature scheme.
* SSL/TLS through SmokeStack.
* Semi-compatible with Spot-On via Fire.
* Share files with TCP utilities such as Netcat.
* SipHash-128.
* Smoke and mirrors.
* Software congestion control.
* Software manual included.
* Steam, reliable file sharing. TCP over the Echo!
* Steamrolling, or, real-time broadcasting of inbound Steams to fellow participants.
* Super McEliece: m = 13, t = 118.

Details

Version	v2023.1
Size	7.99 MB
Developer	F-Droid Open Source
Category	Internet
Package	org.purple.smoke
Android	4.1+
Last Updated	Oct 29, 2026
Downloads	8

Frequently Asked Questions

Is Smoke free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Smoke require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Smoke safe to install?
We link to the exact APK published by F-Droid Open Source. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Smoke?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install Smoke

Tap the Download APK button above and save the file to your device.
Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
Open the downloaded org.purple.smoke.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «Smoke» by F-Droid Open Source and grant only the permissions it actually needs.
Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.