Comparison
SUB vs TrainingPeaks.
TrainingPeaks is the gold-standard coach platform: structured workouts, ATP planning, deep analytics, USD 19.95/month for athlete Premium plus separate coach fees. SUB is the free, focused alternative: assign workouts by date; runs auto-complete on Garmin or COROS sync; coach views student progress. For 80% of marathon coaching workflows, SUB does the job for free.
Side-by-side
| TrainingPeaks | SUB | |
|---|---|---|
| Athlete price | USD 19.95/mo Premium | Free |
| Coach price | USD 19/mo+ per athlete | Free |
| Assign workouts by date | ✓ | ✓ |
| Structured workout builder | ✓✓ (their strength) | ✓ (simpler) |
| Auto-complete on watch sync | limited | ✓ Garmin, COROS, Apple Watch, Polar |
| CTL / ATL / TSB analytics | ✓✓ | — |
| Sub-3 / Sub-4 pace calculator | ✓ | ✓ |
| Race finder (worldwide) | — | ✓ |
| Multi-watch dedup | — | ✓ |
| Coach class / group management | per-athlete | ✓ join code, batch assign |
| Languages | EN | EN, 繁中, 日本語 |
Where TrainingPeaks wins
- Industry-standard CTL / ATL / TSB load metrics for elite coaching.
- Deep structured-workout builder with per-step pace / power / HR targets.
- Year-long ATP (Annual Training Plan) planning UX.
- Established coach community and trust.
Where SUB wins
- Free for both athletes and coaches. No USD 19.95/mo. No per-athlete licence.
- Auto-complete on watch sync — Garmin, COROS, Apple Watch, Polar all detected.
- Class / group management via join code — batch-assign workouts to a whole class at once.
- Race finder built in — assign a race date and the matching event drops into the student’s view.
- Multi-watch dedup — students with Garmin and COROS get honest mileage totals.
- Trilingual UI — coach and student can speak different languages.
Try SUB
Coach? Sign up at coach.subdim.app. Athlete? Download the app and join your coach’s class with the code. Free.
Frequently asked questions
Is there a free alternative to TrainingPeaks for marathon coaching?
Yes. SUB is a free coach platform plus marathon training app. Coaches assign workouts (long runs, intervals, tempo, races); students see them, run them, and SUB auto-completes the workout the moment a matching run lands from Garmin Connect or COROS. No coach licence fees, no athlete subscription.
How does SUB compare to TrainingPeaks for coaches?
TrainingPeaks is the gold-standard coach platform: structured workouts, sophisticated workout builder, ATP planning, performance analytics. It costs USD 19.95/month for the athlete Premium tier, plus separate Coach Edition fees. SUB is free; it has a simpler coach workout builder (simple text or structured step list), assignments by date or training class, automatic workout completion on watch sync, and shared progress views. SUB is the lighter, free option; TrainingPeaks is the deeper professional option.
Does TrainingPeaks work with COROS?
TrainingPeaks integrates with COROS for activity sync. SUB has the same activity-sync depth plus native running dynamics (stride length, vertical oscillation, vertical ratio, ground contact time) and lap detail.
Can I be a coach on SUB?
Yes. Create a coach account at coach.subdim.app, generate a class join code, students join with it, and you can assign workouts by date. Workouts auto-complete from Garmin Connect, COROS, Apple Watch, or Polar sync. Free.
Should I switch from TrainingPeaks to SUB?
If you need TrainingPeaks' deep ATP planning, structured-workout building, and CTL/ATL/TSB analytics, stay. If you want a free coach platform that just works — assign by date, auto-complete on sync, Garmin and COROS supported — SUB covers the 80% case for the cost of nothing.