Hidden surprise app: create real-world experiences

A hidden surprise combines content (message, photo, video, voice note or gift card) with unlock conditions: a date, a place, or both. The recipient knows something is coming, but not what it contains or exactly when they will discover it.

Unlike a text or email, the reveal becomes a moment. That is the difference between a notification and a real experience.

Regular messaging apps send and forget. A hidden surprise app structures anticipation, place and content inside one object: the Klok.

With Klok, you schedule delivery, choose whether the recipient must reach a specific place, and seal the surprise. Everything is encrypted and accessible only to you and the person involved.

The result is a memorable experience, not content lost in a chat thread.

1. Compose your Klok: text, photo, video, voice note or partner gift card.

2. Set the unlock date and, if you want, the place where the surprise can be discovered.

3. Seal it and let Klok send the surprise at the right time. Your recipient gets an invitation to discover what you prepared.

Parents preparing a surprise for their children, couples leaving a message to find later, friends running a digital treasure hunt, or brands creating an on-site discovery experience.

If you are looking for a geolocated surprise app that is easy to use and available on iOS and Android, Klok is built for you.