Signal

Probably one of the most popular, secure private messaging apps that combines strong encryption (see Signal Protocol) with a simple UI and plenty of features. It's widely used across the world, and easy-to-use, functioning similar to WhatsApp - with instant messaging, read-receipts, support for media attachments and allows for high-quality voice and video calls. It's cross-platform, open-source and totally free. Signal is recommended by Edward Snowden, and is a perfect solution for most users.

Open Source

Signal Privacy Policy

Privacy Policy Summary

  • Prohibits the publishing of personally identifiable information without the owner’s consent
  • This service informs users that its Terms of Service does not apply to third party websites
  • Third parties used by the service are bound by confidentiality obligations
  • Your personal data is aggregated into statistics
  • The service does not guarantee accuracy or reliability of the information provided
  • The service does not share user information with third parties
  • You can request access, correction and/or deletion of your data
  • Users agree not to use the service for illegal purposes
  • They may stop providing the service at any time
  • This service does not sell your personal data
  • You maintain ownership of your data
  • You can delete your content from this service
  • This service does not force users into binding arbitration
  • The court of law governing the terms is in a jurisdiction that is friendlier to user privacy protection.
  • You have the right to leave this service at any time
  • This service allows you to retrieve an archive of your data
  • This service does not track you
  • The service reviews its privacy policy on a regular basis
  • The service provides two factor authentication for your account
  • The service claims to be GDPR compliant for European users
  • Features of the website are made available under a free software license
  • Only necessary user logs are kept by the service to ensure quality
  • The service will resist legal requests for user information where reasonably possible
  • The service provides details about what kinds of personal information they collect
  • There is a date of the last update of the agreements
  • You must create an account to use this service
  • A free help desk is provided
  • The service is provided 'as is' and to be used at your sole risk
  • This service does not guarantee that it or the products obtained through it meet your expectations or requirements
  • Failure to enforce any provision of the Terms of Service does not constitute a waiver of such provision
  • Instead of asking directly, this Service will assume your consent to changes of terms merely from your usage.
  • The service can delete your account without prior notice and without a reason
  • This service cannot be held responsible for disputes that you may have with other users
  • This service assumes no liability for any losses or damages resulting from any matter relating to the service
  • The service provider makes no warranty regarding uninterrupted, timely, secure or error-free service
  • You are responsible for maintaining the security of your account and for the activities on your account
  • The service will only respond to government requests that are reasonable
  • Any liability on behalf of the service is only limited to $100
  • This service does not condone any ideas contained in its user-generated contents
  • Your personal data is not sold
  • Information is provided about security practices
  • Instructions are provided on how to submit a copyright claim
  • Third parties are involved in operating the service
  • Your personal data may be disclosed to comply with government requests without notice to you

Score

B

Documents

Domains Covered by Policy

  • signal.org
  • whispersystems.org

About the Data

This data is kindly provided by tosdr.org. Read full report at: #528

Signal Source Code

Author

signalapp

Description

Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS

Homepage

https://signal.org/

Repository

  • LicenseAGPL-3.0
  • Created09 Dec 13
  • Primary languageJava
  • Size24,136 KB
  • Stars10,672
  • Forks2,483
  • Watchers10,672

Language Usage

Language Usage

Project Health

Recent Commits

  • Chris Eager(13 Aug 26)

    Update to the latest version of the spam filter

  • Katherine Yen(13 Aug 26)

    Parameterize on file name instead of numberless

  • Katherine Yen(12 Aug 26)

    Add numberless variant to `AccountsManagerTest#testJsonRoundTripSerialization`

  • Katherine Yen(12 Aug 26)

    Add numberless variant to `AccountsManager#updateCurrentProfileVersion`

  • Katherine Yen(12 Aug 26)

    Move test parameters for `updateCurrentProfileVersion` right after the test

  • Katherine Yen(12 Aug 26)

    Parameterize `AccountsManagerTest#testUpdate_optimisticLockingFailure` with numberless variant

  • Katherine Yen(12 Aug 26)

    Parameterize `AccountsManagerTest#testUpdateDevice` with numberless variant

  • Chris Eager(12 Aug 26)

    Update to the latest version of the spam filter

  • Ameya Lokare(11 Aug 26)

    Unify TTL handling of redeemed receipts

  • Chris Eager(12 Aug 26)

    Update to the latest version of the spam filter

  • Ravi Khadiwala(12 Aug 26)

    Add LoginPurchase grpc service

  • Chris Eager(12 Aug 26)

    Add dynamoDbClient to CommandDependencies

  • Jonathan Klabunde Tomer(03 Aug 26)

    Support linking devices to accounts without phone numbers

  • Chris Eager(12 Aug 26)

    Ensure AuthHelper mocks are Strictness.LENIENT

  • Chris Eager(12 Aug 26)

    Replace unnecessary use of AuthHelper.VALID_UUID

  • Jon Chambers(11 Aug 26)

    Move responsibility for copying badges on account reclamation to `AccountsManager`

  • Katherine(12 Aug 26)

    Clear PNI single use prekeys on device removal

  • Jon Chambers(11 Aug 26)

    Set phone number recovery password transactionally when creating accounts

  • Ravi Khadiwala(11 Aug 26)

    Increase DeviceCheck key limit

  • Jon Chambers(11 Aug 26)

    Update `AccountControllerTest` for accounts that may not have phone numbers

  • Chris Eager(10 Aug 26)

    Add numberless case to `AccountsManagerConcurrentModificationIntegrationTest`

  • Ravi Khadiwala(10 Aug 26)

    Add numberless variants to username tests

  • Ravi Khadiwala(11 Aug 26)

    Avoid calling method when mocking a stub from another class

  • Jon Chambers(11 Aug 26)

    Update to the latest version of the spam filter

  • Jon Chambers(11 Aug 26)

    Update `AccountsManagerChangeNumberIntegrationTest` for accounts that may not have phone numbers

  • Chris Eager(11 Aug 26)

    Add explicit check for recovery password in AccountsManger#create

  • Jon Chambers(11 Aug 26)

    Update `AccountTest` for cases where accounts may not have phone numbers

  • Katherine Yen(11 Aug 26)

    Update Redis account retrieval tests in `AccountsManager`

  • Katherine Yen(10 Aug 26)

    Don't assume phone number identifier presence in parsing account JSON or writing accounts to Redis

  • Chris Eager(10 Aug 26)

    Use AccountLockManager#withSingleAccountLock when appropriate

Signal Website

Website

Signal >> Home

Say "hello" to a different messaging experience. An unexpected focus on privacy, combined with all of the features you expect.

Redirects

Does not redirect

Security Checks

All 65 security checks passed

Server Details

  • IP Address104.18.11.47
  • LocationSan Francisco,California,United States of America,NA
  • ISPCloudFlare Inc.
  • ASNAS13335

Associated Countries

  • USUS
  • CACA

Safety Score

Website marked as safe

100%

Blacklist Check

signal.org was found on 0 blacklists

  • AntiSocial Blacklist
  • Artists Against 419
  • Badbitcoin
  • Bambenek Consulting
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  • CoinBlockerLists
  • CRDF
  • CryptoScamDB
  • EtherAddressLookup
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  • Fake Website Buster
  • MetaMask EthPhishing
  • NABP Not Recommended Sites
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  • PhishFeed
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  • Phishing.Database
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  • RPiList Not Serious
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  • Spam404
  • StopGunScams
  • Suspicious Hosting IP
  • ThreatFox
  • ThreatLog
  • TweetFeed
  • URLhaus
  • ViriBack C2 Tracker

Website Preview

Website preview

Signal Android App

APK Info

De-Googled Compatibility

Native3.82/ 4115 ratings
microG3.94/ 4170 ratings
  • GrapheneOSNative3.8 / 4(36)
  • LineageOSmicroG4.0 / 4(35)
  • LineageOSNative3.9 / 4(7)
  • e OSmicroG4.0 / 4(6)
  • iodeOSmicroG4.0 / 4(6)
  • Stock (samsung SM-A047F)Native4.0 / 4(3)

Tested on Android 13–16 · Updated 20 Jul 26 · View on Plexus →

Trackers

No trackers found

    Permissions

    • Access Coarse Location
    • Access Fine Location
    • Access Network State
    • Access Wifi State
    • Authenticate Accounts
    • Bluetooth
    • Broadcast Sticky
    • Broadcast Wap Push
    • Call Phone
    • Call Privileged
    • Camera
    • Change Network State
    • Change Wifi State
    • Disable Keyguard
    • Get Accounts
    • Install Shortcut
    • Internet
    • Modify Audio Settings
    • Modify Phone State
    • Process Outgoing Calls
    • Raised Thread Priority
    • Read App Badge
    • Read Calendar
    • Read Call Log
    • Read Call State
    • Read Contacts
    • Read External Storage
    • Read Logs
    • Read Phone State
    • Read Profile
    • Read Sms
    • Read Sync Settings
    • Receive Boot Completed
    • Receive Mms
    • Receive Sms
    • Record Audio
    • Request Ignore Battery Optimizations
    • Send Sms
    • Set Wallpaper
    • Use Credentials
    • Vibrate
    • Wake Lock
    • Write Calendar
    • Write Call Log
    • Write Contacts
    • Write External Storage
    • Write Profile
    • Write Sms
    • Write Sync Settings
    • Update Count
    • Receive
    • Read Settings
    • Update Shortcut
    • Change Badge
    • Read Settings
    • Write Settings
    • Update Badge
    • Read Settings
    • Write Settings
    • Read
    • Write
    • Broadcast Badge
    • Provider Insert Badge
    • Badge Count Read
    • Badge Count Write
    • Access Secrets
    • C2d Message

    Signal iOS App

    App Info

    Signal - Private Messenger

    Signal is a messaging app with privacy at its core. It is free and easy to use, with strong end-to-end encryption that keeps your communication completely private. • Send texts, voice messages, photos, videos, GIFs, and files for free. Signal uses your phone’s data connection, so you avoid SMS and MMS fees. • Call your friends with crystal-clear encrypted voice and video calls. Group calls supported for up to 50 people. • Stay connected with group chats up to 1,000 people. Control who can post and manage group members with admin permission settings. • Share image, text, and video Stories that disappear after 24 hours. Privacy settings keep you in charge of exactly who can see each Story. • Signal is built for your privacy. We know nothing about you or who you’re talking to. Our open source Signal Protocol means that we can’t read your messages or listen to your calls. Neither can anyone else. No back doors, no data collection, no compromises. • Signal is independent and not for profit; a different kind of tech from a different kind of organization. As a 501c3 nonprofit we are supported by your donations, not by advertisers or investors. • For support, questions, or more information please visit https://support.signal.org/ To check out our source code, visit https://github.com/signalapp Follow us on Twitter @signalapp and Instagram @signal_app

    Rating

    Rated 4.74 out of 5 stars by 1,070,172 users

    Version Info

    • Current Version8.23
    • Last Updated06 Aug 26
    • First Released29 Jul 14
    • Minimum iOS Version15.0
    • Device Models Supported127

    App Details

    • IPA Size205.30 Mb
    • PriceFree (USD)
    • Age Advisory12+
    • Supported Languages44
    • DeveloperSignal Messenger, LLC
    • Bundle IDorg.whispersystems.signal

    Screenshots

    • App screenshot
    • App screenshot
    • App screenshot
    • App screenshot
    • App screenshot
    • App screenshot
    • App screenshot

    Signal Docker

    Container Info

    signal

    A TLS proxy relay for the Signal privacy messenger app.

    #Messaging

    Run Command

    docker run -d \
      

    Compose File

    version: 3.8

    Signal Reviews

    More Encrypted Messaging

    • Matrix is a decentralized open network for secure communications, with E2E encryption with Olm and Megolm. Along with the Element client, it supports VOIP + video calling and IM + group chats. Note that homeservers can log IP addresses and metadata, and unrelayed 1:1 calls may reveal your IP to the other party.

    • Simplex is gaining popularity as a secure and private messaging app renowned for its robust encryption protocol without user IDs or phone numbers and this improves your privacy. Simplex offers instant messaging, supports media attachments and voice and video calls. Additionally, it is cross-platform, open-source, and completely free, aligning with the modern user's preferences for convenience, security, and accessibility. Learn more about the Security Policy.

    • XMPP, also known as Jabber, is an open standard for decentralized messaging that has been widely used for decades. It has actually been the basis upon which WhatsApp, Facebook's Chat and Google's Talk were built, but these companies (eventually) chose to remove the interoperability with other servers. Prominent XMPP clients support OMEMO end-to-end encryption, which is based on the Double Ratchet Algorithm that is used in Signal. For more hands-on information and to register an account you can visit JoinJabber.

    About the Data: Signal

    Change History

    • Amended (subreddit)
    • Amended (androidApp, iosApp)

    Edit Signal Data

    You can edit Signal's entry in this section of awesome-privacy.yml by submitting a PR to our GitHub repo.
    Note that some of the information shown above has been aggregated from external sources, a list of these can be found data documentation.

    Origin Data

    Modify Data

    API

    You can access Signal's data programmatically via our API. Simply make a GET request to:

    https://api.awesome-privacy.xyz/v1/services/signal

    The REST API is free, no-auth and CORS-enabled. To learn more, view the API Docs or read the API Usage Guide.

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