Eccentric

SEF Industries, LLC

About this app

Eccentric is a training log that records every workout — on any equipment — and connects it to the rest of your life: your wearable's recovery data, your calendar, and your AI assistant. Plans, history and honest progress in one place.

Built around the Voltra I smart cable trainer, and just as at home with barbells, dumbbells, machines, bands or bodyweight.

RECORD EVERY WORKOUT
• Check sets off as you train — your reps and load count toward volume and history immediately.
• Import your Voltra export and measured velocity, power and range of motion replace the numbers you entered.
• Log on any equipment: cable, barbell, dumbbell, machine, bands or bodyweight.

CONNECT YOUR RECOVERY
• Bring in sleep, HRV, readiness and resting heart rate from your wearable (Oura and more).
• See how recovery lines up with your training.
• Keep it private: a coach you invite to build your plans can never see your sleep, HRV, readiness or bodyweight unless you grant it.

PROGRESS YOU CAN TRUST
• Personal bests and strength, velocity, power and volume over time.
• Honest analytics — we won't call something a trend until there's enough data to back it up.

PLAN YOUR WEEK
• Lay out your training days and rest days.
• Sync your plan straight to Apple or Google Calendar.

TRAIN WITH A COACH
• Share a plan with a coach or training partner with fine-grained access — they see what you choose, nothing more.
• Version history shows every edit, from both sides.

ASK YOUR AI ASSISTANT
• Connect your training to an AI assistant to review sessions, adjust plans and answer questions in plain language.

BUILT FOR ECCENTRIC OVERLOAD & BFR
• Purpose-built for eccentric (lowering-phase) training and blood-flow-restriction (Kaatsu) work, treated as first-class training conditions rather than an afterthought.

Your data is yours. Recovery signals stay private by default, and you decide exactly what a coach can see.

Start free — record your next session in seconds.

What’s new

Initial Release for Eccentric, your new favorite lifting app.