Free during beta

Strength Training Tracker
Built for Progressive Overload.

Open it. Hit start. Log your sets in three taps. Then watch the numbers go up.

  • Auto-progression — knows what weight to use next
  • Real 1RM math + drop-set tracking
  • Built by lifters. Free during beta.
Follow
RepDemon dashboard — 25 sessions, 432 sets, 341.6k volume
RepDemon active workout — Bench Press with auto-progression
Built around how you actually train

Build Your Strength Training Program: Movements, Workouts, Splits.

Three layers. One system. Build it once — train it forever.

01

Movements

Your library of lifts. Tag with equipment, rep ranges, notes. Anything from a Smith squat to a single-arm cable curl.

02

Workouts

Stack movements into a session. Order them, set targets, dial in progression.

03

Splits

Combine workouts into a weekly plan — PPL, Bro Split, custom 6-day. The app picks today’s session for you.

In-app

Start Tracking Your Strength Progress for Free

REPDEMON is free during beta. Log every rep, track your numbers, unlock personalized 1RM calculations after just 3 movements. No credit card required. Early users get priority access to premium features coming soon.

Start for free
RepDemon Library, Workouts, Splits tabs
/ 01 — Quick log

Log Your Workouts in 3 Taps with Smart Suggestions

Open the app. Hit Log Workout. Choose a split, pick today’s session, start lifting. Or roll a one-off custom — no rules.

  • Templates: PPL, Bro Split, 6-Day, Full Body
  • Or build your own splits from scratch
  • Smart-suggests today’s workout
Log Workout split picker
/ 02 — Auto-progression

Auto-Progression: Smart Weight Recommendations Based on 1RM Calculations

RepDemon remembers what you lifted last and tells you exactly what to try today. Hit your range — load goes up. Miss it — stay put. No spreadsheet.

  • Per-movement progression (default +5%)
  • Real 1RM math (Epley, drop-set aware)
  • Drop sets, warm-ups, back-offs tracked
Active workout with auto-progression recommendation
/ 03 — Receipts

Track Strength Gains: Personal Records, 1RM History, and Training Analytics

Sessions, sets, volume — weekly heat-map, most-trained movements, best 1RM PRs, the pack leaderboard. Receipts for the work.

  • Lifetime totals + 8-week trend chart
  • Best 1RM PRs auto-calculated
  • Compare against your training partners
RepDemon dashboard analytics
Frequently Asked

Lifting questions answered.

Everything you wanted to know about progressive overload, 1RM calculations, and how REPDEMON tracks your strength training.

What is progressive overload?

Progressive overload is the practice of gradually increasing the demands on your muscles during training. This can mean more weight, more reps, more sets, or shorter rest periods. RepDemon calculates the optimal progression automatically based on your 1RM and rep range.

How does REPDEMON calculate 1RM?

RepDemon uses the Epley formula to calculate your estimated 1-rep max from any set. Formula: 1RM = weight × (1 + reps ÷ 30). After you log 3 movements (typically 9 sets), REPDEMON unlocks personalized 1RM calculations and weight recommendations.

Can I use REPDEMON offline?

Yes. REPDEMON is a Progressive Web App (PWA) that works completely offline. Log your workouts in the gym without an internet connection, and your sessions sync automatically when you reconnect.

Is REPDEMON free?

REPDEMON is free during beta. A paid tier is coming in the future, but early users get priority access to premium features and beta pricing.

How many workouts until I unlock 1RM calculations?

After you log 3 movements with at least 3 sets each (9 total sets), REPDEMON unlocks 1RM calculations, estimated max weights, and smart progression recommendations based on the Epley formula.

What are warm-up sets and how do I log them?

Warm-up sets are lighter reps before your working sets to prepare your muscles and joints. Log them just like regular sets — REPDEMON tracks everything. Your working sets unlock 1RM calculations; warm-ups are there for safety and preparation.

What is The Pack (social system)?

The Pack is our privacy-first training community (coming soon). Compare progress with friends using invite codes — no public leaderboards, no exposure. Training partners keep you accountable without sacrificing privacy.

Will REPDEMON sync with Google Calendar?

Yes — Google Calendar integration is coming soon. Sync your training schedule from REPDEMON to Google Calendar for automatic workout reminders. Never miss a session.

What's the best way to build a custom workout split?

Start with movements (add all exercises you'll use), then build workouts (assign movements to workout days), then create or assign to splits. This prevents duplicates and keeps your library clean. REPDEMON guides you through this workflow.

How do I get started if I'm a complete beginner?

Start by logging any 3 movements — doesn't matter if you're new. After 9 total sets (3 movements × 3 sets), REPDEMON unlocks your personalized 1RM calculator and smart weight recommendations. You learn as you go.

Free during beta

Ready to track every rep?

Try the app