Questions, bugs, or a calculator you wish it had: email support@mimssoftwareco.com. Tell us your phone model and the app version (Settings → About).
Tap ft after the feet and in after the inches: 5 ft 7 in 3/8. A fraction always belongs to the inches.
A number on its own isn't a length. If you type 16 with no unit, the app asks rather than guessing, because a wrong guess gives a wrong cut. Add ft or in after the number.
Answers are rounded to the precision you pick in Settings (1/8" to 1/64"). "Strong" means the true length is a hair over the mark shown; "shy" means a hair under. Tap any result to see the exact decimal.
Sign in to the Play Store with the same Google account, install the app, and open Settings → Unlock or restore Pro → Restore purchase. Pro is tied to your Google Play account, not to the phone.
Some payment methods take time to clear. Pro unlocks on its own as soon as Google Play confirms the payment.
Purchases go through Google Play. You can request a refund through Google Play's refund process, or email us.
Strong Sixteenth does the arithmetic. It doesn't know your job, your materials, or local requirements, and it isn't engineering advice. Check every number before you cut.