Comparison
Triathlon training apps compared
A triathlon training app has to balance three sports, plus strength, inside one week you can actually live with. We compared nine options on price for a season, strength, watches, and whether you can talk to the plan, with each app’s own site as the source.
Prices and features checked on on each app’s own website. We make TextFit, one of the apps on this page.
Short answer:
- Most data-driven: TriDot ($14.99 to $99 a month, more for a coach).
- Strongest on the bike, indoors: TrainerRoad ($21.99 a month).
- AI planners around $20 a month: AI Endurance, Athletica, HumanGO.
- Free, on Garmin: Garmin Coach’s triathlon plan.
- Free plan, no watch sync: MOTTIV.
- Buy a coach’s plan: TrainingPeaks.
- Garmin or Apple Watch, with strength in the same plan: TextFit ($14.99 a month or $99.99 a year after a 14-day free trial).
What a triathlon training app should do
- Count hard days across sports: a hard swim, ride and run on three days in a row is three hard days.
- Targets per sport (run pace, bike power, swim pace per 100 m), from a test when you don’t know them.
- Place strength where it doesn’t wreck the next key session.
- Put structured workouts on your watch and bend when the pool is closed on Thursday.
Triathlon training apps at a glance
| App | Price | Strength | Watches | Talk to the plan |
|---|---|---|---|---|
| TriDot | $14.99/month (1 sprint or Olympic race) to $99/month; coached $249/month | Complete tier ($99/month) | Garmin, Apple Watch, COROS, Wahoo | In-app assistant for training questions |
| HumanGO | Essential $16.99/month; Premium $28.99/month (Premium is aimed at triathletes) | Yes | Garmin, Apple Watch, Suunto, Polar, Strava | AI coach Hugo; plan adapts automatically |
| Athletica | $19.90/month or $189/year | Not listed | Garmin, COROS, Wahoo, Strava, Concept2; Apple Watch not listed | AI Coach explains and suggests; doesn’t change the plan by itself |
| AI Endurance | $20/month or $200/year, free trial | Not listed | Garmin, Suunto, COROS, Wahoo, Hammerhead and more; Apple Watch via the third-party Watchletic app | Coach can change the plan in the conversation |
| MOTTIV | Free plan; Premium $19.99/month or $179.99/year | Yes, strength and mobility | Premium only: Strava, Garmin and other apps; free plan has no device connection | Not listed |
| TrainerRoad | $21.99/month or $209.99/year, 30-day money-back guarantee | Not listed on the triathlon plan page | Indoor trainers; workouts also run inside Zwift | TrainerRoad AI adapts the plan |
| Garmin Coach | Free | Supplemental strength workouts | Garmin only | Not listed |
| TrainingPeaks | Premium $134.99/year; training plans and coaches cost extra | Strength training tools | Structured workout sync to Garmin, Apple Watch, Wahoo, Zwift | You or your coach edit the plan; live coaching from $149/month |
| TextFit | $14.99/mo or $99.99/yr, 14-day free trial | Yes, in the same plan | Garmin and Apple Watch, next 7 days pushed automatically | Coach chat changes the plan; every change has Undo |
What a 24-week half-distance build costs
Monthly price × 6, at the cheapest tier that covers a 70.3, on 29 October 2026. Annual plans are cheaper if you train all year.
| App | Tier for a 70.3 | 6 months |
|---|---|---|
| TriDot | Essentials ($39/month; Lifestyle covers sprint or Olympic only) | $234 |
| HumanGO | Premium ($28.99/month) | $173.94 |
| TrainerRoad | Monthly ($21.99) | $131.94 |
| AI Endurance | Monthly ($20) | $120 |
| MOTTIV | Premium for device sync ($19.99/month), or the free plan | $119.94 or $0 |
| Athletica | Monthly ($19.90) | $119.40 |
| TextFit | Monthly ($14.99) after a 14-day free trial; $99.99 a year | $89.94 |
| TrainingPeaks | Premium is sold yearly ($134.99), plus the plan you buy | $134.99 + plan |
| Garmin Coach | Free | $0 |
The apps, one by one
TriDot
The most data-heavy option. Its FitLogic engine sets your swim, bike and run baseline (normalized for temperature, humidity and elevation), scores how well you executed each session and predicts race pacing. Garmin, Apple Watch, COROS and Wahoo. Lifestyle $14.99 a month covers one sprint or Olympic race, Essentials $39 up to three races, Complete $99 adds unlimited races and strength, coached $249; two weeks free. Best for: age-groupers who like metrics.
HumanGO
An adaptive plan around your availability; its AI coach Hugo reads workouts, heart rate, sleep and fatigue and adjusts it automatically, for swim, bike, run and strength. Garmin, Apple Watch, Suunto, Polar and Strava. Premium, recommended for triathletes, is $28.99 a month or $264.99 a year. Best for: an AI planner with a coach persona.
Athletica
“Your training finally answers back”: an AI Coach that explains your history, fitness and fatigue, while the plan adapts from your performance and recovery. Triathlon, duathlon, running, cycling, rowing and HYROX, with a baseline test for your zones. $19.90 a month or $189 a year; Garmin, COROS, Wahoo, Strava and Concept2. Best for: a science-led plan explained.
AI Endurance
Trains a “Digital Twin” of how you respond to training and re-optimizes the plan; its coach chat can move the long ride or swap a session. Pushes to Garmin, Suunto, COROS, Wahoo, Hammerhead and more, and to Apple Watch through the third-party Watchletic app. $20 a month or $200 a year. Best for: data-minded triathletes.
MOTTIV
Triathlon, running, duathlon, cycling and swimrun plans with each workout explained, plus strength, mobility and nutrition. Free for one race at a time without device connections; Premium ($19.99 a month or $179.99 a year) adds them. Best for: first-time triathletes on a budget.
TrainerRoad
A cycling app first: triathlon plans from sprint to full distance in 8-week blocks, power-based bike workouts, pace-based runs and swims with drills, adapted by TrainerRoad AI and runnable inside Zwift. $21.99 a month or $209.99 a year. Best for: triathletes whose bike split matters most and who ride indoors.
Garmin Coach
Garmin Triathlon Coach is free in Garmin Connect: pick your race, schedule pool days and two-a-days, and get adaptive recommendations with optional strength. Best for: Garmin owners who want a free plan.
TrainingPeaks
Owned by Garmin since July 2026 and used by many triathlon coaches. Premium $134.99 a year; plans and coaches are sold separately, live coaching from $149 a month. Syncs to Garmin, Apple Watch, Wahoo and Zwift. Best for: a specific coach’s plan or a human coach.
TextFit
Our app: an AI coach for iPhone that plans swimming, cycling, running and strength as one week and keeps the next 7 days on your Garmin or Apple Watch. 14 days free, then $14.99 a month or $99.99 a year.
- One plan, hard days counted across sports: at most two a week (three above eight sessions), never back to back, about 80% easy, and a long ride plus a long run on the weekend that count as one.
- Garmin Connect and Apple’s WorkoutKit, so every session waits on the watch with your targets.
- Every change visible, with Undo: “The pool is closed Thursday” in the coach chat moves the swim.
- Tests when your numbers are unknown (run, FTP ramp, CSS) and recovery from HRV, resting heart rate and sleep against your own 28-day normal range.
Example: an Olympic-distance week, 7 sessions, Monday off
| Tue | Swim · 2,000 m with 8×100 m @ CSS (key), then strength · 35 min |
|---|---|
| Wed | Easy run · 40 min @ 5:35–6:07 /km |
| Thu | Easy ride · 60 min |
| Fri | Swim · 1,800 m easy with drills |
| Sat | Long ride · 2 h 30 min, mostly easy (long) |
| Sun | Long run · 60 min easy, the day after the long ride (long) |
An illustration of the rules: two hard days, Tuesday and the long weekend, which counts as one. Your week depends on your race, days and thresholds.
More on what the AI triathlon coach does, how the coach builds a week, triathlon interval training and TextFit with Apple Watch.
FAQ
What is the best triathlon training app?
TriDot for data-driven age-groupers ($39 to $99 a month), TrainerRoad for power-based bike training, HumanGO, Athletica or AI Endurance for an AI planner at about $20 a month, Garmin Coach for free on a Garmin. TextFit plans swim, bike, run and strength in one week on Garmin or Apple Watch: 14 days free, then $14.99 a month.
Is there a free triathlon training app?
Garmin Coach has a free adaptive triathlon plan in Garmin Connect for Garmin users. MOTTIV has a free plan for one race at a time, without device connections. TriDot, HumanGO and AI Endurance offer free trials, and TextFit has a 14-day free trial.
Which triathlon apps work with Apple Watch?
TriDot, HumanGO and TrainingPeaks list Apple Watch; AI Endurance works with it through the third-party Watchletic app; Athletica doesn’t list it. TextFit schedules workouts on Apple Watch directly through WorkoutKit.
How much does TriDot cost?
On 29 October 2026 TriDot listed Lifestyle at $14.99 a month for one sprint or Olympic race, Essentials at $39 for up to three races of any distance, Complete at $99 with unlimited races and strength sessions, and a coached tier at $249 a month, with a 14-day free trial.
Do AI triathlon coaches change the plan when you ask?
Some do. AI Endurance’s coach can change your plan in the conversation, HumanGO’s Hugo adapts it automatically, and Athletica’s AI Coach explains and suggests without changing the plan itself. In TextFit the coach changes the plan from the chat and shows each change with Undo.
Can TextFit plan for a triathlon race date?
Yes: sprint, Olympic, half or full distance, in phases from base to taper, with a long ride and a long run on the weekend and hard days counted across all sports.
Sources
Prices checked on 2026-10-29 (US prices unless noted; they vary by country and change). Where we write “not listed”, the feature wasn’t on the pages below that day, which doesn’t prove the app lacks it. Spotted something out of date? Email support@textfit.app.
- TriDot: TriDot homepage and pricing
- HumanGO: HumanGO FAQs and pricing, HumanGO on the App Store
- Athletica: Athletica pricing and FAQ
- AI Endurance: AI Endurance pricing, AI Endurance homepage, AI Endurance FAQ
- MOTTIV: MOTTIV pricing, MOTTIV homepage
- TrainerRoad: TrainerRoad pricing, TrainerRoad triathlon plans
- Garmin Coach: Garmin Coach overview, Garmin Coach running plans, Garmin Coach triathlon plan
- TrainingPeaks: TrainingPeaks pricing for athletes, TrainingPeaks help: structured workout sync, Garmin newsroom: Garmin acquires TrainingPeaks
More comparisons
- Runna alternatives: Six options instead of Runna, free and paid: Garmin Coach, Nike Run Club, MOTTIV, Coopah, TrainingPeaks and TextFit.
- Runna vs Garmin Coach: A paid coach-designed running plan against a free plan built into Garmin Connect, plus a multisport third option.
- Best marathon training apps: Runna, Garmin Coach, Nike Run Club, MOTTIV, Coopah, TrainingPeaks plans and TextFit for a marathon or half marathon.
Swim, bike, run and strength on your watch
Tell the coach your race, your week and your current fitness. It builds your first two weeks and pushes every session to Garmin or Apple Watch.
14 days free, then $14.99/month or $99.99/year. Cancel anytime in your App Store settings.
Start your 14-day free trial