Kettle is an AI coach you can actually talk to. Log sets, start workouts, surface PRs, and plan sessions — all through a conversation that understands your full training history.
Log sets, start workouts, or plan sessions through natural conversation that knows your history.
Volume, PRs, and streaks update as you train. Know when to push and when to recover.
Resume where you left off. Kettle tracks rest times, sets, and exercises across every workout.
Weight, reps, rest — with smart defaults. Spend less time tapping forms, more time training.
Hit a personal best? Kettle calls it out the moment you log the set. No spreadsheets needed.
No forms. No menus. No data entry. Just say what you did and Kettle keeps the record.
Generic AIs guess. Kettle pulls from a curated library of fitness research — every answer cites the studies behind it, so you train on evidence, not vibes.
Protein dosing, training frequency, periodization — backed by Morton 2018, ISSN, and IOC reviews.
Mifflin-St Jeor, deficit ranges, and what the literature actually says about nutrient timing.
Frequency vs. volume, compound vs. isolation, and progressive overload that's actually progressive.
DOMS, deload protocols, and sleep architecture's measured effect on adaptation.
Pregnancy, postpartum, masters athletes — programmed against ACSM and WHO guidelines.
HIIT vs. steady state, the concurrent training effect, and how to stack both without losing gains.
Ask Kettle "how much protein do I need?" and you don't get a confident guess. You get the 1.6–2.2 g/kg threshold from Morton's 2018 meta-analysis (n=1,863) — with the citation, the confidence interval, and the population it applies to.
Download Kettle and train with an AI that actually understands you.