Tonightish is a mobile app that aims to make it easier for parents to book trusted babysitters on short notice by providing a convenient and secure platform for both parties. The app allows parents to share their list of trusted sitters with friends, select available sitters for specific dates and times, and receive confirmation via Twilio SMS upon acceptance. Babysitters can also join the platform without downloading an app and respond to job requests through text messages. The founders prioritize ease, security, and spontaneity in the app's design, aiming to solve last-minute scramble situations and provide a more convenient experience for both parents and sitters.