Two apps. One job: get it right the first time.
Learn the tape, then cut the roof. Everything runs on your phone, nothing to sign up for, nothing leaves the phone.
Tape Pro $2.99 / year
Read a tape measure like a pro. Every line explained on a tape on your screen, the fast way to count sixteenths, and tape math: add, subtract, center, equal spaces, multiply.
Learn is free. The Tape and Math tools are $2.99 a year, one phone, no auto-renew.
Open Tape ProFraming Pro Free for now
Framing math from the square, with a drawing of where every number is measured from: walls with their doors, windows and headers; floor and ceiling joists; stairs; rafters for gable and shed roofs; hips, valleys and jacks; tape math and counts. Every choice explained beside it.
Built for the framing square and the speed square. Check your plans and local code before you cut.
Open Framing ProPut it on your phone
iPhone: open the app, tap Share → Add to Home Screen → Add.
Android: the ⋮ menu in Chrome → Add to Home screen → Install.
Then it opens from its own icon, full screen, and works with no signal.