Feet-inches-fraction math and trade tools for elevator mechanics.
Found a bug, have a feature request, or spotted a value that doesn't match your code book? Email francis.a.viola@gmail.com and include your iOS version and what you were calculating. You'll usually hear back within a couple of days.
Why does a clearance check say PASS but my inspector disagrees?
The app checks against typical industry minimums. Your job specs, local code,
and ASME A17.1 edition in force always govern — the app is a field reference,
not a substitute for the code book.
Does the app work offline?
Yes, completely. It makes no network connections at all.
Where did my calculation history go?
The tape is kept while the app is open and cleared when iOS closes the app in
the background. Use M+ to hold a value you need later.
The app collects no data. See the privacy policy.