Trillian

Modern and secure messaging and calls for people, business and healthcare.

Igor V Ustyugov · com.ceruleanstudios.trillian.android

4.7 out of 5 (6 ratings) 500K+ downloads v7.0.0.35 68.9 MB Android 9+ PEGI 3 · Everyone

Download APK 68.9 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v7.0.0.35 (70035)
Updated: Oct 5, 2026 (3 days ago)
APK size: 68.9 MB
Requires: Android 9+ (API 28)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Business (app)
Listed since: Apr 8, 2021 (at least)
Permissions: 31 (11 sensitive)
Website: trillian.im
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Trillian is an app by Igor V Ustyugov in the Business category, listed since at least April 2021. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 6.6.0.21, the APK grew from 36.4 MB to 68.9 MB and the minimum Android version rose from 5.0 to 9. It asks for 31 permissions, 11 of them sensitive, including camera, record audio and read contacts. It asks for the same permissions as version 7.0.0.32. The app offers in-app purchases through Google Play.

Ratings

4.7out of 56 ratings

5 ★67%
4 ★33%
3 ★0%
2 ★0%
1 ★0%

Ratings from users of the source store — not collected or verified by AAPKs.

What's new in v7.0.0.35

New features, bugfixes, and performance improvements.

Description

From the listing uploaded by “appupdater”.

Trillian is modern and secure messaging for people, business and healthcare. For over 20 years, Trillian has been helping people stay connected. Today's Trillian brings secure (and HIPAA-compliant) messaging, audio, and video calls to healthcare professionals and businesses of all sizes. And true to our roots, if you're just looking for free personal instant messaging, we can help with that too! • FOR BUSINESSES: Does your business still rely on texting or cumbersome email chains? Let Trillian's modern and secure business instant messaging modernize employee communication without compromising on security or control. • FOR HEALTHCARE: Your healthcare organization needs secure instant messaging, and Trillian's HIPAA-compliant secure messaging platform has you covered. We help teams of all sizes improve clinical communication without breaking the bank. • FOR INDIVIDUALS: Stay in touch with family and friends without compromising your privacy. Your unique Trillian username can be used to send unlimited messages free of charge over your existing data plan and/or WiFi and place and receive voice calls. Whether you're looking to empower secure employee instant messaging or just to keep in touch with family and friends, Trillian can help. Thanks for checking us out!

Version history

7 versions are listed, going back to v6.6.0.21. New versions arrive here about every month. Since v7.0.0.30 it requires Android 9+.

v7.0.0.35 LATEST Oct 5, 2026 68.9 MB TRUSTED v7.0.0.32 Sep 1, 2026 68.3 MB TRUSTED v7.0.0.31 Aug 31, 2026 68.3 MB TRUSTED v7.0.0.30 Aug 29, 2026 68.3 MB TRUSTED v6.6.0.61 May 20, 2026 67.1 MB TRUSTED

All 7 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Oct 5, 2026.
Certificate issued to “Cerulean Studios, LLC” This is the certificate of the Google Play version.
Same certificate as the 4 other versions checked

Store checks and file details

Developer signature not checked yet Oct 5, 2026
Validated against Google Play Oct 5, 2026
Signed byCN=Trillian for Android, OU=Unknown, O="Cerulean Studios, LLC", L=Brookfield, ST=Connecticut, C=US
Signing certificate (SHA-1)78:3C:D0:7F:9D:A9:EA:B8:2B:DA:B0:52:8B:9A:F7:5A:65:7C:5A:55
File MD5272462453b7b9c31b287e75f470676b3
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (4 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (31)

Trillian requests 31 permissions, 11 of them sensitive.

Bluetooth connect Sensitive android.permission.BLUETOOTH_CONNECT
Call phone Sensitive android.permission.CALL_PHONE
Camera Sensitive android.permission.CAMERA
Read contacts Sensitive android.permission.READ_CONTACTS
Read media audio Sensitive android.permission.READ_MEDIA_AUDIO
Read media images Sensitive android.permission.READ_MEDIA_IMAGES
Read media video Sensitive android.permission.READ_MEDIA_VIDEO
Read media visual user selected Sensitive android.permission.READ_MEDIA_VISUAL_USER_SELECTED
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
Write contacts Sensitive android.permission.WRITE_CONTACTS
Bluetooth android.permission.BLUETOOTH
Change network state android.permission.CHANGE_NETWORK_STATE
Change wifi state android.permission.CHANGE_WIFI_STATE
Control vibration android.permission.VIBRATE
Foreground service data sync android.permission.FOREGROUND_SERVICE_DATA_SYNC
Foreground service remote messaging android.permission.FOREGROUND_SERVICE_REMOTE_MESSAGING
Full network access android.permission.INTERNET
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) com.ceruleanstudios.trillian.android.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Manage own calls android.permission.MANAGE_OWN_CALLS
Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
Show notifications android.permission.POST_NOTIFICATIONS
Use fingerprint hardware android.permission.USE_FINGERPRINT
Use full screen intent android.permission.USE_FULL_SCREEN_INTENT
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Bluetooth android.hardware.bluetooth
Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait

Trillian APK: questions and answers

Is there a version of Trillian for older Android phones?

The current version needs Android 9 or later. Version 6.6.0.61 is the newest listed build that installs on Android 7.0 and later. Get version 6.6.0.61 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is Trillian free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the Trillian APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 4 other versions checked. After downloading, check that the file's MD5 is 272462453b7b9c31b287e75f470676b3.