The most popular alternative is Prey, which is both free and Open Source. If that doesn't suit you, our users have ranked 6 alternatives to Hidden so hopefully you can find a suitable replacement. Other interesting Hidden alternatives are iLostFinder (Freemium), iAlertU (Free, Open Source), LockItTight (Freemium) and LAlarm (Free Personal).
- Prey is a lightweight application that will help you track and find your laptop or mobile if it ever gets stolen. It works in Windows, Mac OsX, Linux and Android.
- iLostFinder is an anti-theft/lost app for iPhone and iPad. Find out who got your iPhone by taking photos secretly.
- iAlertU is an alarm system for your Apple MacBook that uses the built in motion detection to trigger the alarm and the iSight to capture the image of the thief. Features
- LAlarm is free laptop alarm security software.
- Track My Mac from MacKeeper developers is a fast and easy way to find your missing Mac. In case of loss, the app will detect your Mac’s current location, make a photo of the thief or intruder, and send this data directly to your iPhone.