Every Rep Calculated.
Every PR Earned.
StrengthMaxxer programs your next session automatically with 6 science-based progression algorithms and scores your lifts against 235 exercise standards — calibrated by gender and weight class. Not another logging app.
6 algorithms. Zero guesswork.
Select a mode, watch how the algorithm adapts your training session by session. Each mode is tuned to your equipment type with smart weight increments.
Session Timeline
Linear progression
225 lbs x 8 reps -- All sets hit
+5 lbs --> 230 lbs x 8 reps
230 lbs: 7, 7, 6 reps -- Stall #1
230 lbs x 8 -- Keep pushing
225 lbs x 8 reps -- All sets hit
+5 lbs --> 230 lbs x 8 reps
230 lbs: 7, 7, 6 reps -- Stall #1
230 lbs x 8 -- Keep pushing
Equipment-Aware Increments
Each equipment type uses the smallest practical weight jump
Imperial
+5 lbs
Metric
+2.5 kg
Know exactly where you stand.
235 exercises with gender-specific, weight-class-calibrated scoring. Your 1RM is interpolated to your exact body weight and mapped to a precise percentile from Beginner to Elite.
Bench Press
| BW (lbs) | Beginner | Novice | Intermediate | Advanced | Elite |
|---|---|---|---|---|---|
| 130 | 62 | 95 | 137 | 186 | 240 |
| 150 | 78 | 115 | 160 | 213 | 271 |
| 170 | 94 | 134 | 182 | 238 | 299 |
| 190 | 109 | 152 | 203 | 262 | 326 |
| 210 | 124 | 169 | 223 | 285 | 351 |
| 250 | 152 | 201 | 259 | 326 | 396 |
Values shown in lbs (1RM). Interpolated to exact body weight in the app.
How scoring works
A 175 lb male lifter walks into the gym.
Dive deep into your training data.
Pivot-table views across sets, sessions, and exercises. Filter by date range or muscle group, then drill down into 1RM trends and volume history.
| Date | Exercise | Weight | Reps | RPE | Est. 1RM |
|---|---|---|---|---|---|
| Feb 12 | Bench Press | 225 lbs | 8 | 7.5 | 279 lbs |
| Feb 12 | Bench Press | 225 lbs | 7 | 8.0 | 268 lbs |
| Feb 12 | Squat | 315 lbs | 5 | 8.0 | 354 lbs |
| Feb 10 | Deadlift | 365 lbs | 3 | 8.5 | 387 lbs |
| Feb 10 | OHP | 135 lbs | 10 | 7.0 | 180 lbs |
Track volume, fatigue, and PRs.
14 muscle groups tracked independently with exponential recovery decay. PR detection uses Brzycki 1RM estimation so every set competes fairly regardless of rep range.
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Muscle Groups
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Recovery Model
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Chart Types
Muscle Fatigue Decay
Primary: 11%/set · Secondary: 5.5% · Recovery: 48-60 hours
PR Detection
225 lbs x 8 reps
iPhone. Watch. Widgets.
Build programs on your phone. Train from your wrist with Digital Crown controls and haptic PR celebrations. Check progress at a glance with 17 Home Screen widgets.
- Workout builder with drag-and-drop exercises
- 6 progression algorithms (per-exercise or global)
- Dark-mode UI with 15 color themes
- 235 exercise strength standards
- Muscle fatigue tracking (14 muscle groups)
- CSV + JSON data export
- Digital Crown for weight adjustments (±2.5 lbs per click)
- Haptic PR celebrations on your wrist
- Rest timer with wrist tap alerts
- Bidirectional sync — finish on Watch, data on iPhone
- Compact glanceable UI designed for mid-set use
17 widget types
Volume, streaks, strength scores, activity grids, muscle fatigue, PR tracking, and more — all on your Home Screen.
Core training is free. Analytics are premium.
All workout tracking, all 6 progression algorithms, and strength scoring are free. Premium adds deep analytics, themes, and more widgets.
Free
$0
- Workout creation and tracking
- All 6 progression algorithms
- Strength scoring (235 exercises, gender + weight class)
- Muscle fatigue tracking
- Apple Watch sync
- 7-day analytics charts
- 3 widget types
Premium
7-DAY FREE TRIAL$6.99/mo
or $39.99/yr or $99.99 lifetime
- Everything in Free, plus:
- Full analytics dashboard
- Data Explorer (6 pivot views)
- 15 themes + 19 textures
- All 17 widget types
- CSV + JSON data export
- Saved filter presets
Your data never leaves your device.
No accounts. No servers. No tracking. Everything is stored locally on your device with optional iCloud sync. We never see your workout data.
Stop guessing.
Start progressing.
Free to download. No account required. All 6 progression algorithms included from day one.
Download on the App Store