Google Authenticator - Google Authenticator is a multifactor app for mobile devices.
Next Keyboard - A better keyboard for iOS with stickers, themes & emojis 💃
Microsoft Authenticator - One app to quickly and securely verify your identity online, for all of your accounts.
NASA Exoplanet Posters - Imagine visiting worlds outside our solar system
andOTP - andOTP is a two-factor authentication App for Android 4.4+
Spacetime - Work hour and time zone management for distributed teams.