For iPhone & Apple Watch · No ads. No social feed.

Lift heavy.
Track everything.
Skip the noise.

The strength training app built for people who care about numbers under the bar, not streaks and emoji confetti. Run StrongLifts 5×5, Wendler 5/3/1, the full GZCL family, or build your own — all from one engine.

Compound Theory home dashboard mid-workout, with the next working set queued.
StrongLifts 5×5Wendler 5/3/1MadcowTexas MethodGZCLPJacked & Tan 2.0Candito 6-WeeknSunsPHULPHATJuggernautGreyskull LPStrongLifts 5×5Wendler 5/3/1MadcowTexas MethodGZCLPJacked & Tan 2.0Candito 6-WeeknSunsPHULPHATJuggernautGreyskull LP
20+
Built-in Programs
0
Ads · Trackers · Analytics
$0
To Import Your History
∞
iCloud Sync · Free Forever

What you get

Built for the work, not the highlight reel.

Every feature exists to answer one question: what should you do under the bar today? Everything else got cut.

01RECOVERY

Know what's ready to train.

Every exercise carries a recovery dot — green, yellow, or red — so you know which movement patterns are loaded for another session and which need another day. Tap in for per-pattern bars and last-loaded times.

  • Hinge / Squat / Push / Pull bars
  • Per-muscle freshness ring
  • Last-loaded timestamps
Compound Theory Muscle Freshness view with overall recovery ring and per-movement-pattern bars.

02RANK

See where you stand.

Squat, Bench, Deadlift, OHP — ranked against the rest of the lifting population, adjusted for your bodyweight, age, and sex. Exactly how far you are from Intermediate, Advanced, or Elite. No guessing.

  • Bodyweight-adjusted percentiles
  • Age & sex calibrated
  • Tier progression visual
Compound Theory Strength Standards detail ranking your big lifts against the lifting population.

03ANALYZE

Every lift, plotted.

Volume by muscle group. Weekly workload. Per-lift 1RM trends. PR tracking. The data is here whether you want a glance or a deep audit of your last training block.

  • Volume distribution donut
  • Per-lift working weight + e1RM
  • PR feed across all variations
Compound Theory per-lift progress chart with PR markers for the deadlift over a 12-week block.

A unique view

You vs. everyone else.

Most apps tell you what you lifted. Compound Theory tells you what it means. Your numbers, ranked against the lifting population — adjusted for your bodyweight, age, and sex.

Beginner
155 lb
Novice
230 lb
Intermediate
320 lb
You · Adv.
405 lb
Elite
480 lb

Apple Watch

On your wrist. Mid-set.

Start, track, and complete barbell workouts from the watch. Rest timer in the Dynamic Island. Optional auto-RPE from heart-rate recovery. Phone stays in the bag.

Watch It Work →
Compound Theory on Apple Watch — active set screen showing 225 lb bench at set 3, 5 reps.
Compound Theory on Apple Watch — rest timer at 2:47 with live heart-rate recovery.

Out of the box

Twenty proven programs. One engine.

The classics, the modern staples, and the cult favorites — already configured, with auto-progression dialed in. Or build your own from scratch.

Linear · Beginner
StrongLifts 5×5
3 days/wk · A/B alternating

The canonical novice program. Five sets of five, every session, every lift. Add weight until you can't.

Linear · Beginner
Starting Strength
3 days/wk · A/B alternating

Rippetoe's classic. Three lifts a session, hard sets across, novice gains for as long as they last.

Linear · Beginner
Greyskull LP
3 days/wk · upper/lower

AMRAP final sets, frequent OHP, double-progression. The 'smarter' linear progression.

Periodized · Intermediate
Madcow 5×5
3 days/wk · ramp + back-off

Where SL graduates go. Weekly progression with a single top set and ramped warmups.

Periodized · Intermediate
Texas Method
3 days/wk · vol/light/intensity

Volume Monday, recovery Wednesday, intensity Friday. The blue-collar intermediate template.

Pro · Wendler
5/3/1 BBB
4 days/wk · 4-week wave

Boring But Big. Five sets of ten on the supplemental lift. Volume that builds quietly.

Pro · GZCL
GZCLP
4 days/wk · T1/T2/T3

Linear-progression GZCL. Tier 1 heavy, Tier 2 moderate, Tier 3 accessory volume.

Pro · GZCL
Jacked & Tan 2.0
4 days/wk · 12-week block

Cody Lefever's hypertrophy/strength hybrid. Brutal volume, methodical progression.

Pro · Custom
Build Your Own
Any split · any progression

Custom programs with auto-progression rules, deload weeks, and AMRAP support. Yours.

Pro

Unlock everything.

Pro adds every periodized program, advanced analytics, recovery insights, and the watch auto-rep counter. One purchase, three ways to pay.

Monthly
$3.99/ mo
7-day free trial. Cancel anytime.
Best Value
Yearly · Save 38%
$29.99/ yr
7-day free trial. ~$2.50/month.
Lifetime
$99.99once
Pay once. Yours forever.
  • All 5/3/1 templates & variants
  • Full GZCL family (GZCLP, Rippler, J&T 2.0, UHF 9)
  • Custom program builder
  • Advanced analytics & volume reports
  • Recovery insights & freshness model
  • Apple Watch auto-rep counter
  • Unlimited workout history
  • CSV / JSON data export
  • Premium themes & app icons
FREE TRIAL FOR NEW SUBSCRIBERS · NO ADS EVER · NO TRACKING

Common questions

Asked & answered.

Can I sync my data across devices?

Yes. Enable iCloud Sync in Settings. Your workouts move with you, encrypted end-to-end by Apple. We never see them.

Is my data actually private?

Zero analytics. No telemetry. No third-party trackers. Your data stays on your device or in your iCloud — and only there.

How do I import from another app?

Settings → Import & Export. StrongLifts, Five3One, or any CSV. Free for every user — no Pro required. Export to CSV/JSON is a Pro feature.

Does it actually work on Apple Watch?

Yes — first-class. Start, log, and finish workouts from the wrist. Rest timer in the Dynamic Island. Optional auto-RPE from heart-rate recovery (beta).

Which programs are free vs. Pro?

Free: StrongLifts 5×5, Starting Strength, Greyskull LP, Madcow, Texas Method. Pro: every 5/3/1 variant, the full GZCL family (GZCLP, Rippler, J&T 2.0, UHF 9), and custom programs.

Add weight.
Repeat.

Strength is a long game. Make sure you're keeping score.

Download on App Store