The Deep Focus strict mode, with Unblock Limit type, supports scanning an NFC tag as a requirement before unblocking. In other words, you can use a physical “key” as a way to enforce unblocking!
An NFC tag is a small chip that triggers actions when tapped, like the “tap to pay” feature on many credit cards. These tags come in various formats, such as AirTags, cards, key fobs, and stickers, and can cost as little as $1.00!
If you have a credit card that supports contactless payments, you likely have an NFC tag you can use right now!
Other examples:
Please ensure your iPhone is updated to iOS 17.4 and above.