A strength log for iPhone and Apple Watch. There’s no account to create and no feed to scroll past. You open it at the bench, tap once per set, and put your phone back in your pocket.
On the App Store on Sunday, December 13.
Weight and reps are already filled in from last time. Tap Complete and the rest timer starts on its own. Adding five pounds is one tap on the stepper, or a short drag on the number itself.
The Watch app does the whole session: Crown for weight, one tap to complete, two taps on your wrist when rest is over. If the phone is out of range, the sets wait on the Watch and land on the phone when it’s back.
The set you complete on the Watch appears in the session on your iPhone within a second, with no button to press on either side.
Your log lives on your iPhone and in your own iCloud. Plinth doesn’t run a server, so there is nowhere else for it to go. You can export everything as CSV or JSON from Settings whenever you like.
Export a CSV from Strong or Hevy, share it to Plinth, and every session lands with its original date. Your records and PRs are correct from the first minute, not the first month.
One number and how it’s changed. Bench press e1RM, 228 pounds, up 12 in twelve weeks. Weekly sets by muscle next to what your routine planned. Every PR with the date it happened.
Countdown, next set, and Skip, without unlocking. If you’re in another app, the Dynamic Island keeps the count.
Thirty days of full access, no card. After that, logging new sessions needs a plan. Everything you’ve already logged stays readable and exportable on every device, for as long as you have the app.