Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
Tinitell - Wearable mobile phone for kids. GPS enabled.
Keepsafe Unlisted - Protect your phone number, private texts and calls
Joon - A fun habit building app for kids
Kindaba🎈 - Simple private sharing for families
Octopus by Joy - 1st icon-based watch that teaches kids good habits and time