Numa Card FAQ
How does the Numa Card work?
The Numa Card is an NFC app blocker. In the Numa app, choose the apps that distract you and a daily limit. Hold the Numa Card to your phone and those apps lock; next time you free them for a length of time you choose, then they lock again. Once your daily limit is used up, they stay locked until the next day.
Does Numa work on iPhone and Android?
Yes. Numa runs on iPhone with iOS 16 or later and on Android. Your phone needs NFC. The app is currently in German.
What happens if I lose my Numa Card?
If your apps are unlocked, pair a new Numa Card in the app settings. The old card stops working. If your apps are locked, free them first with the emergency unlock.
Can my child use Numa?
Yes, from age 13. Your child chooses the child role in the app, links to you with a QR code and needs their own Numa Card. You then see their screen time, can set a maximum limit and unlock remotely.
Is there a subscription in the app?
No. The Numa app is free and currently has no subscription or in-app purchases.
Can I keep my apps locked in the evening?
Yes, with the night lock. For each weekday you set when your locked apps can’t be unlocked; then only the emergency unlock works. Numa doesn’t lock the whole phone, only the apps you chose.
How do I unlock in an emergency?
The settings have an emergency unlock. It frees all locked apps until you end it and works up to five times per calendar year. It also works during the night lock.
Which apps and websites can I block?
Pick the apps straight from the list on your phone. For many apps Numa blocks the matching website too, for example instagram.com, and you can add more websites yourself. Adding works any time, removing once every 30 days.
What happens if I switch phones or delete the app?
To move to a new phone, start the device switch in the app settings and scan the QR code with the new phone; this works once every 30 days. If you delete the app, your account is deleted, unless it is linked to parents or children. You can then sign up again with the same email or Numa Card only after 7 days, starting from zero.
How much does Numa cost?
The Numa Card is a one-time CHF 15.50, or CHF 13.95 with your waitlist code. The app is free.
Does the card need a battery?
No. The card runs on your phone's NFC and needs no battery, cable or charger.
When and where can I buy the Numa Card?
The shop opens on 1 December 2026 at 18:00. Everyone on the waitlist gets a code for 10% off. Shipping is free and available within Switzerland only.