We can share the ones that we have developed ourselves: (https://play.google.com/store/apps/developer?id=Ideophone&hl...)
1. One Touch SOS & variants (we have some country specific variants with local police/security integrations).
2. Suruk: a user-configurable tuktuk/taxi meter, to double check that you're not being cheated. Some versions with adequate usage also give crowdsourced estimates of average distance between points.
3. Kopa is a whitelabel Ride sharing app targeted at events
4. DroidJuice plots and graphs your battery usage online (without draining your battery itself), and lets you send automatic "low battery" messages to a predefined receiver list or FB.