AI readout · Local-first
Your workout log tells you what to train today.
No account, no setup. Log a set and see your numbers — then what to train, how hard, and what's lagging.
- No account needed
- No cloud required
- No credit card, no trial clock, no subscription
- Runs in your browser
- Yours to export or erase
Why local-first?
The core log starts in this browser by default. Sync is optional for signed-in users; export or delete records whenever you want.
Your last logged set
——
From your own log on this device. Open your full plan
- 227exercises
- 6+tools
- Freetoday, no card
- Localfirst by default
Three surfaces, one glance each
Daily
Today
Your recovery × what the week needs → one readiness call.
Open TodayHow it works
It weighs how recovered you are against the volume your week still needs, then gives one call: push, hold, or ease off. No wearable required — it reads what you log.
Input
Log
Add this week’s sets. Volume rolls up live, per muscle.
Open LogHow it works
Pick from a real exercise library and log your sets. Weekly volume totals update instantly for every muscle group, so the picture is always current.
Weekly
Weak-Link Report
Per-muscle volume vs. your ceiling → the fix-this-first list.
Open reportHow it works
Each muscle’s weekly volume is charted against a recoverable ceiling you set. Whatever is furthest behind rises to the top — an honest weakness scan, not a guess.
Why Eccentryx
Honest, not hyped
Reads your actual logs. No generic plans, no guesswork.
Free, not freemium-bait
The core is free today, no card. Upgrade only if you want more.
Yours, not locked in
Export or erase your data anytime. Local-first by default.
The engine reads your logs so the information side of training is free and honest — no gatekeeping, no guessing.
Where this is going
Training knowledge shouldn’t cost what a session with someone costs — it’s information, and information can scale for free. What it can’t replace is a real person cheering you on. So as your own logged progress becomes real and advanced, the plan is to let you help newer lifters the same way someone once helped you — always labeled as a peer, never a substitute for this page’s own honesty or for medical care.
Sample path · illustrative, not live data
- 01Browse the AtlasFree exercise library, no account
- 02Log a set freeLocal-first, no card
- 03Structured planLocal+ $9/mo · Pro $19.99/moSee plans →
Browse the exercise library
227 exercises with honest form cues, muscle emphasis, and safe substitutions — free to read, no account.
Push
Pull
Legs
See all 227 exercisesFree training tools
Calculators, analyzers, and visualizers — free, no account. Part of the Eccentryx toolkit.
Questions
Is Eccentryx really free?
Yes, free today, no card. The core log, Atlas, and tools are free. Local+ ($9/mo) and Pro ($19.99/mo) add cloud sync and advanced features when you choose to upgrade.
Do I need an account?
No account needed to log sets and see your numbers. Sync is optional for signed-in users.
Is my data stored in the cloud?
The core log starts in your browser by default. Cloud sync is optional and only when you choose to sign in.
What does “local-first” mean?
Your training data lives in your browser first. You can export or erase it anytime. Sync to the cloud is opt-in, not default.
Is this medical advice?
No. Eccentryx provides training guidance only — not medical advice, not a medical device, and not intended to diagnose, treat, cure, or prevent any condition.
Plans
Free
Free
- Planner + Gym Mode + tracker
- Atlas (227 exercises)
- All tools
- Export and erase your data
Local+
$9/mo
- Everything in Free
- Cloud sync across devices
- Long-term analytics
- Account-based backup
Free today, no card. Upgrade only if you want more. Cancel anytime.
Start free
Free Mode
Log one honest set — no setup, no account. Step up to a full plan whenever you’re ready.
Or build a full planWhat “free” means here
Free today, no card, no trial timer — the core log starts in this browser by default. Local+ adds cloud sync and long-term analytics when you choose to upgrade. No dark patterns, no surprise paywall.