How to log a workout by voice on iPhone

Before you start

You need an iPhone running iOS 17 or later, an app that supports structured voice logging (SayLift is the one built for it), and an internet connection at the moment you record, because the audio has to reach an AI model to be interpreted.

You do not need to set up your routine first. Speaking a session works from a cold start; the app matches whatever exercises you name against its built-in database of 873 movements.

The steps

1. 1Train without touching your phone. Leave it in your bag. This is the entire point, and trying to log as you go defeats it.
2. 2Open the app when you finish and press and hold the mic button on the Today page.
3. 3Say the first exercise, then its numbers. "Bench press, three sets of eight at 135." Order does not matter much, and "135 for three sets of eight" parses the same way.
4. 4Keep going through the session. Say each exercise in turn. You do not need to pause between them or announce that you are moving on.
5. 5Release and wait a few seconds while the model returns the structured workout.
6. 6Check the review screen. Every exercise, set, rep and weight it heard is listed. Tap any number to correct it.
7. 7Save. Your history updates and the coach immediately recalculates targets for next time.

How to phrase the awkward cases

• Reps that differ per set: say them individually: "ten, ten, then eight." Do not average; the app handles uneven sets fine.
• Bodyweight movements: just leave the weight out. "Pull-ups, three sets of twelve" logs without a load.
• Added weight on bodyweight work: "weighted dips, three sets of eight with twenty-five pounds."
• Dumbbells: say the per-dumbbell weight the way you normally would: "incline dumbbell press, three by ten at fifty."
• A failed or partial set: say what you actually got. "Last set I only got six."
• Supersets: name both movements and their sets; the app records them as separate exercises, which is what you want for progression tracking.
• Machines with a stack number: say the number: "lat pulldown, three sets of twelve at plate eleven" works, though logging the actual weight is more useful long-term.

When it mishears you

Gyms are loud and plate numbers rhyme, with fifty and fifteen the classic pair. Two things reduce errors sharply.

First, record in the quietest spot you can reach, even just facing away from the speakers. Second, say the exercise name fully rather than the gym nickname; "Romanian deadlift" resolves more reliably than "RDLs", though the app also weights matches toward exercises you train often, so your regular movements get easier for it over time.

Whatever happens, the review screen is the safety net. Nothing saves until you have seen it, so a misheard weight costs one tap rather than a corrupted log.

If you have no signal

Voice logging needs a connection. In a basement gym, log manually instead. In SayLift that is uncapped and works fully offline, along with your history, the progress dashboard and all 873 exercise guides.

The other option is to record the session on the gym floor and let the app process it when you get outside, which works if you leave the app open until it goes through.

How often you can do it

SayLift caps voice analysis at 10 recordings an hour and 20 a day. Those exist to stop a stuck retry loop running up costs rather than to ration normal use, since a heavy user sends two or three per session, but it is worth knowing the ceiling is there.

Voice logging is part of the one subscription that covers the whole app. SayLift gives you 3 days free to try it, and after that it is $49.99 a year, $7.99 a month or $3.99 a week in the US.