An Android application that leverages on-device sensors to provide monitoring and protection of physical areas. Turns Android phones into a motion, sound, vibration and light detector, watching for unwanted intruders.
Haven
Official website guardianproject.github.io/haven
Our take
A clever idea, turning a spare Android phone into a motion, sound, and light sensor to watch a room or a laptop, and it is the right tool for a very specific physical-security worry. Be aware it has seen little development for years, so judge it as a stable-but-static project rather than something actively improving. Useful if you have an old phone and a concrete reason to monitor a space; do not expect ongoing updates or polish.
GitHub at a glance
guardianproject/haven
Stars
6,790
-1 this week
Last commit
3.6y ago
slowing
License
GPL-3.0
Latest release
0.2.1-beta-1
4.9y ago
Stars, last 10d
Listed in
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Haven license, in plain English
GPL-3.0 Strong copyleft
Free to use and modify, but anything you distribute that is built on it must also be open under the same license.
Permits
- Commercial use
- Modification
- Distribution
- Patent use
- Private use
Requires
- Disclose source
- Same license
- State changes
- License and copyright notice
Does not provide
- Liability cover
- Warranty
Why it matters: Strong copyleft keeps every distributed version open. A vendor cannot fold this into a closed product and ship it without releasing their changes.
Plain-language summary of the project's license, not legal advice. Read the full text for the exact terms.