SafeSpace stores information in app-specific internal storage, with the project providing an Android APK for installation.
Open source
18 alternativesAer
Store Android app data in a private secondary location with Aer, a fork focused on external storage support.
About Aer
Aer is a private local storage utility for Android and a fork of Anemo. It focuses on using the app's private location on external storage such as an SD card, and falls back to internal storage when no external storage exists.
It works through Android system components rather than as a separate file manager interface, and can save content exported from other apps. Files in its private storage do not appear in other apps, and access is provided through the system Files app with password locking options.
Key features
- Store files in private location on external storage
- Fall back to internal storage without external storage
- Create folders and organize files freely
- Access files through system Files application
- Lock storage with password and auto-lock delay
- Import content using Android share functionality
Best for: Android users who want separate local storage for files that other apps cannot see.
Good for
- Open-source code licensed under GPL-3.0
- Supports external storage with fallback to internal storage
- Can be installed and used alongside Anemo
Watch out for
- Focused external-storage use needs external storage; otherwise uses internal storage
Aer at a glance
- Category
- Privacy & Security › Mobile Privacy
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Android
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Aer alternatives
Tools and sites you could use instead, ranked by how closely they match.
Protect Android apps and sensitive data with AppLock, an open-source app locker.
Open source
18 alternatives
Hide private files and apps on Android with Amarok-Hider, a lightweight privacy tool.
Open source
18 alternatives
Private DNS Quick Toggle adds an Android quick settings tile for switching between private DNS providers, with support for multiple providers.
Open source
18 alternatives
Tarnhelm cleans shared links, with project information and a Play Store listing linked from its repository.
Open source
18 alternatives
PermissionManagerX lets Android users view, set, and monitor manifest permissions and AppOps through an extended permission manager.
Open source
18 alternativesPopular in Mobile Privacy
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JustUseAppjustuseapp.comTrackerControltrackercontrol.orgExodusreports.exodus-privacy.eu.org/enRethink Appgithub.com/celzero/rethink-appOpen SSTP Clientgithub.com/kittoku/Open-SSTP-ClientHMA-OSSgithub.com/frknkrc44/HMA-OSS
Aer FAQ
What happens if the device has no external storage?
It falls back to using internal storage.
Can Aer and Anemo be installed together?
Yes, they can be used side by side.
How do I access files stored in Aer?
Through the system Files application; an optional shortcut is offered on devices that do not expose it.
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