For heavy sleepers

Loud is only half of waking up.

Ransom is for people whose alarm makes noise—but who can still negotiate their way back to sleep.

First, make sure you can hear it

Use Apple's Ringtone and Alerts setting, choose an audible sound, place the phone sensibly, and run a test. A mission cannot help with a speaker you cannot hear.

Then make stopping deliberate

A mission adds a short cost to ending the alarm. The cost should be enough to wake you, not so punishing that you disable the system before bed.

Escalate only when needed

Start with Think. Move to pushups, squats, objects, NFC, or barcode distance if automatic dismissal remains the problem. The strongest mission is the mildest one you consistently complete.

Do not use software as medical certainty

Ransom is not a sleep-disorder treatment and cannot guarantee waking under every physical condition. Persistent severe difficulty waking deserves attention beyond an app.