BuddySOS vs Hauk

BuddySOS is an Android and iOS app for groups that combines real-time location sharing, boundary alerts, and one-tap SOS. An SOS alerts members of the active group with the sender's live GPS location, including when the phone is locked. It can also text emergency contacts a live-location link through Twilio, and recipients do not need the app. Safe zones alert the group when a member enters or leaves; each zone must have a radius of at least 100 meters, and a group can have up to five. The free plan costs nothing and includes one group, one safe zone, and ads. BuddySOS Pro is $1.99 a month and removes ads while allowing more groups and zones. The maker says it shares location only with group members, does not sell it, and does not keep location history. Data is encrypted in transit and at rest, but not end-to-end encrypted. Sign-up uses a phone number and text-message code; listed availability currently includes US, Canada, UK, and EU numbers.

Hauk is a free, open-source service for sharing a phone’s live location through a backend that users host themselves. With its Android app, a user can set how long to share, then send a link for others to follow the location on a map. Sharing ends when the set period expires or the user stops it, and anyone with the link can view the location while it is active. The app sends location data only to the Hauk server configured in its settings. Running it therefore requires a server with PHP and Memcached or Redis, including the corresponding PHP extensions. Deployment options include manual or scripted installation, an Arch Linux AUR package, and an official Docker image. The project supports end-to-end encryption, LDAP authentication, and Tasker share starts; the Android app also supports HTTP and SOCKS proxies. Hauk is licensed under Apache-2.0. Its public demo is limited to two-minute shares and is intended for demonstration. The project recommends HTTPS through a reverse proxy to protect data in transit.