Noxterra: Cleaner, PDF Scanner

Noxterra is an all-in-one Android toolkit for cleaning storage, scanning documents, managing files, and protecting your device. Remove junk, duplicate and similar photos, screenshots, large videos, old APKs, and unused apps with transparent results. Scan documents into PDFs, edit and sign files, convert formats, manage DOCX, XLSX, EPUB, and archive files, and browse internal, SD card, or USB storage.

The app also includes a private encrypted vault, app lock, QR scanner and generator, battery health tracking, charge alarms, Wi-Fi analysis, internet speed testing, LAN discovery, mobile data monitoring, and advanced network tools. Noxterra offers safety and scam checks without fake threats or misleading numbers, plus widgets, Quick Settings tiles, dark mode, reminders, and support for 11 languages.