The fastest margin calculator — on your wrist or in your pocket.
Enter any 2 values (Cost, Margin %, Revenue, Profit) and MarginMate instantly calculates the other 2. No steps, no menus, no friction.
Apple Watch + Digital Crown — fine-tune values with the crown, one unit at a time. Your margin in seconds, without touching your phone.
✦ Margin or Markup mode
✦ Dated history with one-tap restore
✦ 0 to 4 decimal places
✦ One-time purchase — no subscription, no ads
