Every feature, built for real athletes.
Not another tracking app. An AI coach that generates, adapts and evolves your training.
Core Features
Adaptive AI Coach
Your coach remembers your preferences, injuries, and goals. It gets smarter with every session, learning which exercises work for you, when you need rest, and how to push you forward.
Ask for exercise swaps, log how you feel, or just say “motivate me.” The coach responds with data-driven, personalised guidance. Not generic platitudes.
Good morning. Your bench moved last week, so I bumped Thursday's press volume too.
Intelligent Program Generation
A marathoner gets Pfitzinger. A lifter gets 5/3/1. I pick what fits you.
Science-based training methodologies across strength, running, swimming, cycling, triathlon, CrossFit, and general fitness. Periodized with meaningful progression, and personalised to your experience level.
From 5/3/1 and conjugate strength to polarised running and USRPT swimming. Each methodology carries real coaching intelligence, not just sets and reps. Built-in templates also cover CrossFit programs with balanced modal domains rather than random workouts.
Real-Time Adaptation
Every session informs the next. Performance, fatigue, and readiness all factor into your next workout. High RPE weeks trigger deload adjustments. Missed sessions recalibrate your plan.
This isn’t a static spreadsheet. Your program evolves as you do.
That's a new best on your bench press. Nice work.
Last time's numbers are already filled in. Tap done, rest, go again.
Free Workout Tracker
Log every set, rep, and session with an interface designed for phone-in-pocket training. RPE, tempo, rest timing, and session notes captured in seconds. Your entire training history stays searchable, exportable, and free forever.
Unlike Hevy, Strong, or Fitbod, tracking is 100% free with no paywall on history or exports. Automatic PR detection runs on every set you log, and AI coaching sits alongside when you want it, not in front of it. Learn more about the tracker →
The Engine: Personalised Training Content
A personalised training content library that reads your day and ranks what matters. Four categories, fuel, recover, learn, prepare, re-ranked for your program phase, sport, injuries, and recent reads. Marathon base week surfaces aerobic content; taper week pulls up race-day prep; deload week brings recovery guides to the top.
Not a static article index. Workout content that keeps up with your training. See how the Engine ranks content →
You're in a taper week, so I've moved race-day prep to the top.
Your waist-to-hip ratio has held steady for six weeks now.
Body Analysis
AI-powered body composition tracking with proportion analysis, archetype classification, and DEXA-inspired colour-mapped visualisation. See your body shape morph over time.
Track shoulder-to-waist ratio, waist-to-hip proportion, and overall body composition trends with animated comparison views. See how body scanning and the 3D Body Blueprint work →
Horizon View
See your entire training month at a glance. Weekly summaries, session completion rates, and program arc, all in one view.
From today’s session to your 12-week program arc, Pelaris connects every workout to the bigger picture. Learn about how it works →
88% completion over four weeks. Ready to move up a block.
Integrations
Connect Apple Health on iPhone or Health Connect on Android and your workouts and heart rate sync into your coaching automatically, completing matching planned sessions as you go. Sync your training with Strava or Polar to import activities. Connect via MCP to use Pelaris through ChatGPT, Claude, or any MCP-compatible AI assistant.
The Pelaris fitness plugin for ChatGPT installs straight from the ChatGPT Plugin Directory, so your real training data answers the question instead of generic advice.
Strava sync is temporarily unavailable due to Strava's API changes for developers. Read Strava's announcement →
Explore integrations →Take Pelaris anywhere
Pelaris is on the App Store and Google Play, and everything you log on your phone syncs straight through to the web app. Start a session at the gym, review the week on your laptop, and it is the same coach with the same history either way.
Your coach also lives inside ChatGPT, so you can ask for today’s session, log a lift, or check your readiness without opening an app at all.
Read the thinking
Essays and guides from Pelaris
Every feature here is built on the training science in the blog and the practical guides. Read the thinking before you try the app, or after. For the published research underneath it, every source is listed on our science page.
Blog
Training science essays
Zone 2 research, the interference effect, returning from illness, process metrics. The research and reasoning behind the methodologies.
Read the blogGuides
Practical training guides
Fuel, recover, learn, prepare. Deload weeks, marathon tapers, concurrent training, pre-session fuelling, progressive overload. Planning-level guidance for every training decision.
Browse the guidesExperience it yourself
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Start Training →Already training? Rate your current program for a free AI coach-grade review.