Sleep Cycle - Bio-alarm clock that wakes you up at optimal times based on your sleep patterns.
Charles Proxy - HTTP proxy / HTTP monitor / Reverse Proxy
SleepBot - SleepBot is a sleep tracking app available in Google Play and the Apple App Store.
Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Talalarmo - Minimalistic android alarm
Postman - The Collaboration Platform for API Development