Leviathan & Scylla by JeffTron

Leviathan application is created for airsoft FCU by Jefftron Company

Jefftron · com.trinerdis.leviathan

Not rated yet 10K+ downloads v4.4.1 63.7 MB Android 7.0+ PEGI 3 · Everyone

Download APK 63.7 MB All versions

Signature matches the Google Play version Details

Leviathan & Scylla by JeffTron screenshot 1

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Leviathan & Scylla by JeffTron screenshot 3

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Leviathan & Scylla by JeffTron screenshot 7

Leviathan & Scylla by JeffTron screenshot 8

At a glance

Latest version: v4.4.1 (2012171616)
Updated: Jan 28, 2026 (8 months ago)
APK size: 63.7 MB
Requires: Android 7.0+ (API 24)
CPU support: x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Sports (app)
Listed since: Apr 14, 2021 (at least)
Permissions: 10 (3 sensitive)
Website: jefftron.net
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Leviathan & Scylla by JeffTron is an app by Jefftron in the Sports category, listed since at least April 2021. It includes native code for x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 4.2.0, the minimum Android version rose from 5.0 to 7.0. It asks for 10 permissions, 3 of them sensitive: precise location, Bluetooth connect and Bluetooth scan. It asks for the same permissions as version 4.2.0.

What's new in v4.4.1

Fixed buttons bug

Description

From the listing uploaded by “appupdater”.

JeffTron application turns your smartphone into controllable fire control unit for your airsoft gun. Thanks to this app you can easily set up your gun in real time. App works in wireless mode with Leviathan hardware from the Jefftron Company, for all functions you have to buy Leviathan unit. By this app you can also upgrade your Leviathan unit for free with updates which we release in the future. Features: - hybrid fire modes - binary trigger mode - pre-cocking function for instant shot on SEMI fire - statistics shows cycle timing, motor current consumption, rate of fire and mosfet temperature. - adjustable active braking (can be disabled) - smooth control rate of fire - fast trigger response - adjustable burst fire - low battery indicator - time delay between shots - low current consumption in idle state - 3 shot counters - error log shows problems made during the device life - Electronic fuse avoid any damage to Leviathan if something goes wrong - User can save multiple settings under profiles - controling hardware via wireless connection - update function fixes bugs and adds new features to the device Contact us: [email protected] If you like this app please join the group on the Facebook! https://www.facebook.com/groups/Leviathan.by.jeffTron.QA/ App requires wireless BLE connection with Leviathan hardware. Recommended specs: Android 5.1.0 or above and at least 1GB of RAM. We are constantly optimizing application and adding new features for free.

Version history

2 versions are listed, going back to v4.2.0. Since v4.4.1 it requires Android 7.0+.

v4.4.1 LATEST Jan 28, 2026 63.7 MB TRUSTED v4.2.0 Jul 18, 2025 32.2 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jan 28, 2026.
Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
Same certificate as the other version checked

Store checks and file details

Developer signature verified Jan 28, 2026
Validated against Google Play Jan 28, 2026
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)81:93:82:58:95:20:C3:3D:52:71:EA:F6:51:13:AA:7C:AE:63:41:D9
File MD5f0d0b3d1dab6cf1c009922e95be22277
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 (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (10)

Leviathan & Scylla by JeffTron requests 10 permissions, 3 of them sensitive.

Bluetooth connect Sensitive android.permission.BLUETOOTH_CONNECT
Bluetooth scan Sensitive android.permission.BLUETOOTH_SCAN
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) com.trinerdis.leviathan.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Bluetooth android.hardware.bluetooth
Basic touch input android.hardware.faketouch
Location android.hardware.location

Leviathan & Scylla by JeffTron APK: questions and answers

Is there a version of Leviathan & Scylla by JeffTron for older Android phones?

The current version needs Android 7.0 or later. Version 4.2.0 is the newest listed build that installs on Android 5.0 and later. Get version 4.2.0 · 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 the Leviathan & Scylla by JeffTron 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 other version checked. After downloading, check that the file's MD5 is f0d0b3d1dab6cf1c009922e95be22277.