Download QTLBook

Available on Android and Windows. Always free to download — billing starts after your trial.

android

Android App

Version 2.7.8

info Android 8.0 (API 26) or later

Bug fixes and performance improvements.

Released 2026-08-01

Scan to download on your phone

laptop_windows

Windows App

Version 2.7.8

info Windows 10 version 1903 (build 18362) or later, x64

Bug fixes and performance improvements.

Released 2026-08-01

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