Hevy vs SayLift

The short answer

• Pick SayLift if the reason your log has gaps is that you will not handle your phone between sets. You speak the session and its AI writes down the exercises, sets, reps and weights.
• SayLift sets your next weight. After each session the coach tells you, lift by lift, whether to increase, hold or decrease, and when to deload. Hevy leaves that decision to you.
• No caps: Hevy's free tier stops at 4 routines, 7 custom exercises and 3 months of graph history. SayLift caps none of those.
• Price: SayLift is $4.17 a month (billed $49.99 a year), $7.99 a month or $3.99 a week, after a 3-day free trial with everything unlocked. That one plan covers voice logging, the coach and every other feature.

What Hevy is

Hevy is a tap-based workout logger. You build routines, run them set by set, and tap in the reps and weight for each one.

The free version logs unlimited workouts but is capped at 4 routines, 7 custom exercises and 3 months of graph history. Hevy Pro removes those caps, as a subscription or a one-time purchase.

What SayLift is

SayLift is an iPhone workout tracker built around the microphone. You train without touching your phone, then tap the mic and describe the session out loud: "bench press, three sets of eight at 135, then incline dumbbell press for ten, ten and eight at fifty." The recording goes to a multimodal AI model rather than through a plain speech-to-text stage, and comes back as structured exercises, sets, reps and weights, with a review screen before anything saves.

Around that sit the parts that make the log useful: a coach that sets your next working weight per lift and picks one of six actions (increase, hold, decrease, deload, restart or calibrate), 873 exercises with photos and step-by-step instructions stored on the phone for offline use, paste-in routine import that turns a plan in any text format into a routine you can edit on the Profile tab, a progress dashboard, and cloud backup from the first session.

You can also log by hand when you would rather tap. The planned sets open pre-filled with last session's numbers beside them, one tap logs a set as the same as last time, and a set can be marked as a warm-up, a drop set or to failure.

There are no tiers: every subscriber gets every feature. Try it free for 3 days with everything on, then it is $4.17 a month (billed $49.99 a year), $7.99 a month or $3.99 a week.

Side by side

What SayLift does better

• Voice logging. Hevy has no equivalent. Its ChatGPT integration generates routines; it does not take a spoken session and write your sets down. In SayLift, one tap on the Lock Screen widget, or the Action button on iOS 18 and later, opens straight into a recording.
• The load call. SayLift's coach sets the next working weight for each lift from your own history. Hevy records what you decide and leaves the decision to you.
• The offline library. 873 exercises with photos and instructions on the phone, which matters in a basement gym with no signal.
• Routine import from plain text. Paste four training days in whatever format you have them and the app builds them, instead of an evening of typing.
• No sign-up wall. SayLift lets you start as a guest and attach an account later. Hevy asks for one up front.

Who SayLift is for

SayLift suits you if your training log has holes in it because logging mid-session is the thing you skip. Speaking one recording at the end of a workout is a different habit from tapping thirty times during it. If that is where you fall off, SayLift fixes it, and the coach then turns what you logged into your next working weight. The trial unlocks voice logging, so two real sessions will tell you.

Try it free for 3 days with every feature on. After that it is $4.17 a month (billed $49.99 a year), $7.99 a month or $3.99 a week in the US.