Help with 45 lb

Yes — you sign in with Apple the first time you open the app. That takes one tap, needs no password or email, and it is what lets your training history follow you to a new phone.

Your data is stored on your device and synced to your 45 lb account, so it works offline at the gym and catches up when you have signal. Sign in on any iPhone and your history is there. It does not depend on iCloud.

Yes. You can log 0 lb for bodyweight movements, and any weight to two decimal places — the numpad accepts real gym numbers like 92.50 or 210.55.

Set a target range like 8–10 reps instead of a single number. When every working set hits the top of the range, 45 lb suggests a small weight increase for next time — classic double progression.

Your workout is saved as you go and resumes cleanly. The rest timer accounts for the time the app was closed, so your elapsed clock stays honest.

45 lb is an iPhone app running on iOS 17 and later, in dark mode.