🔒 🖼 Securely, easily add a watermark to your sensitive photos. 安全、简单地为你的敏感照片添加水印，防止被小人泄露、利用

No-root network monitor, firewall and PCAP dumper for Android

Catima, a Loyalty Card & Ticket Manager for Android

eXtended Permission Manager for Android - view, set, watch Manifest Permissions and AppOps

🔧A front-end application for the Android AppOpsService.

An Android app that can convert open(view) files to share(send) files.

AdAway is a free and open source ad blocker for Android.

OONI Probe Android

backup manager for android