安全
MotionLock
Keeps your device locked
Hypatia
A real-time malware scanner
AdAway
一款面向安卓设备的自由和开源应用
Inter Profile Sharing
在 Android 用户档案之间轻松分享媒体和文本
Blink Comparison
Simplifies comparing photos of tamper-evident seals using your eyes
Ripple：恐慌时做出反应
在焦虑或恐慌的情况下触发应用以保护您的隐私
DroidCrypt
A file and text encryption tool for Android
Pazzword - Password Evaluator
The most intelligent password evaluator app
mOTP
一次性密码生成器
Tinc Mesh VPN
Tinc mesh VPN client and user interface
Ruam Mij
Suspicious app scanner with privacy respects
Varengold activeTAN
2FA for online banking
FreedomBox
A companion app for your FreedomBox server
Karma Firewall
Karma Firewall blocks apps from accessing the Internet
Briar Mailbox
在 Briar 离线时接收加密消息
DroidFS
Store & access your files securely
Exodus
显示来自其他已安装应用的跟踪器和权限
Duress
Duress password trigger
Vault
Simple, secure and fast password manager compatible with KeePass
NewPass
使用 NewPass 安全地存储和管理您的数字领域的密码。
Pushie
Provides temporary, secure, password sharing
Ojo RTSP IP Camera viewer
Ojo is a basic IP Camera surveillance wall.
open2share
允许从每个应用（如微信）分享文件
Sekreto
WG Auto Connect
Auto connect to a WireGuard tunnel
OpenKeychain: Easy PGP
加密你的文件和通信。兼容 OpenPGP 标准。
TorServices (alpha)
最简单、最快、最小的 Tor 代理应用（早期测试版本）
AuthPass - 兼容KeePass的密码管理器
全平台同步您的密码，安全又方便！
ANONguard
ANONguard anonymises the Internet connection
ClassyShark3xodus - Scan apps for warnings
Checks apk(s) for known trackers (provided by Exodus) +other warnings and specs.
