Transition
Triathlon training plans with an AI coach chat, Garmin and Apple Watch workout push, and Zwift and Rouvy sync.
Ranked #6 of 19 with an overall score of 3.3/5 (4 of 7 dimensions scored). Visit Transition. Entry last reviewed 2026-10-13.
Triathlon, Swimming, Cycling, Running, Strength AI level: Conversational AI coach Adaptive plan + chat AI only USD 139/yr pushes workouts to 8 devices
Transition builds swim, bike, run and strength plans for sprint to full-distance triathlon and adjusts them when sessions are missed or the schedule changes, with an AI coach chat that reworks the week on request. It pushes structured workouts to Garmin watches and Edge units, Apple Watch, COROS, Suunto, Zwift and Rouvy, reads activities from Garmin Connect, Apple Health and Strava, reads HRV and sleep from Garmin, WHOOP and Oura, and controls Bluetooth smart trainers. It is sold as a USD 139/year subscription with a free trial; the App Store seller is Storybooks LLC and the founder is Alex Wormuth.
Conversational AI coach. An LLM-based coach the athlete talks to in free text; it can explain, negotiate and change the plan, usually on top of a model-driven or rule-based planner. source
What the coach does
Thirteen coaching capabilities as stated by the vendor. ● full, ◐ partial, ○ not offered, ? unverified. Each links to the page that states it.
| Plan | ||
|---|---|---|
| Builds a periodized planBuilds a periodized plan to a goal and date? | ● | Plan generated from goal, date, availability and current fitness, with phases. source |
| Precise workout prescriptionHow precise is each session? | ● | Interval-level targets (pace, power or HR) executable on a device. source |
| Race preparationRace-specific work, taper, pacing? | ◐ | Race blocks, taper and a pacing or race-day plan for the target event. source |
| Adapt | ||
| Adapts to lifeRe-plans around life? | ◐ | Missed or moved sessions and availability changes re-flow the plan automatically. source |
| Adapts to fatigueReacts to fatigue and readiness? | ◐ | Load changes from HRV, sleep, resting HR or subjective feel without the athlete asking. source |
| Handles injury and illnessHandles sick or hurt athletes? | ◐ | Pause and return-to-training progression, not just skip. source |
| Relationship | ||
| Post-workout feedbackExplains what a completed session meant? | ◐ | Per-session analysis referencing the athlete's data and the plan's intent. source |
| ConversationCan the athlete talk to the coach? | ● | Free-text chat that can answer questions and change the plan. source |
| Check-ins and accountabilityDoes it come to you? | ◐ | Scheduled check-ins, debriefs or reminders initiated by the app. source |
| Human coach in the loopIs a human in the loop? | ○ | A human coach reviews or messages, included or as an add-on. source |
| Beyond endurance | ||
| Strength and mobilityStrength in the plan? | ● | Prescribed strength or mobility sessions scheduled alongside endurance work. source |
| Nutrition and fuelingFueling guidance? | ● | Session- or day-specific fueling numbers. source |
| Multisport planningOne plan across sports? | ● | Balances load across sports in a single plan. source |
Works with
Partners the vendor states support for, by kind. A partner not listed is unverified, not unsupported.
Watches
| Partner | Direction | Source |
|---|---|---|
| Garmin (watches / Connect) | reads activities and pushes workouts; also reads sleep/HRV Garmin Connect two-way; HRV-based readiness when a Garmin is connected (features page) | source checked 2026-10-13 |
| Apple Watch | reads activities and pushes workouts | source checked 2026-10-13 |
| COROS | reads activities and pushes workouts Added in v1.0.137 (Jul 2026) | source checked 2026-10-13 |
| Suunto | pushes workouts Added in v1.0.140 (Jul 2026) | source checked 2026-10-13 |
Bike computers
| Partner | Direction | Source |
|---|---|---|
| Garmin Edge | pushes workouts Edge 1050/1040/840/540/530/830/Explore 2 named | source checked 2026-10-13 |
Indoor trainer apps
| Partner | Direction | Source |
|---|---|---|
| Zwift | reads activities and pushes workouts | source checked 2026-10-13 |
| Rouvy | reads activities and pushes workouts | source checked 2026-10-13 |
Training platforms
| Partner | Direction | Source |
|---|---|---|
| Strava | reads activities | source checked 2026-10-13 |
Wellness and health data
| Partner | Direction | Source |
|---|---|---|
| Apple Health | reads activities Activity and health data on iOS | source checked 2026-10-13 |
| WHOOP | reads wellness data Added in v1.0.150 (Sep 2026) | source checked 2026-10-13 |
| Oura | reads wellness data Added in v1.0.136 (Jul 2026) | source checked 2026-10-13 |
Smart trainers
| Partner | Direction | Source |
|---|---|---|
| Smart trainer (ERG control in-app) | reads activities and pushes workouts In-app resistance control over Bluetooth FTMS (Wahoo KICKR, Tacx, Elite, Saris, JetBlack) | source checked 2026-10-13 |
Facts
| Platforms | iOS, Android source |
|---|---|
| Languages | EN source |
| Company | Storybooks LLC (App Store seller; copyright Transition Inc) source |
| Country | unverified |
| Launched | unverified |
Pricing
| Pricing model | Subscription source |
|---|---|
| Monthly price | unverified |
| Annual price | USD 139 source |
| Free tier | Free trial source |
| Trial | unverified |
Scores
1–5 per dimension by the published rubric. Each score links to its evidence. Blank means no public evidence yet.
| Dimension | Score | Evidence |
|---|---|---|
| Plan quality | – | no public evidence yet |
| Adaptation | 3 | Vendor states the coach reshuffles the week after missed sessions, injury or travel and reads sleep/HRV via Garmin for readiness; behaviour is request-driven and no independent user confirms it. evidence checked 2026-10-13 |
| Workout feedback | 3 | Structured workouts with targets and intervals push to Garmin, Apple Watch, COROS, Suunto and Edge; version history adds per-workout zone/GAP analysis and a post-workout RPE check-in. Vendor-stated only; the single independent Zwift-forum voice is sceptical. evidence checked 2026-10-13 |
| Coaching relationship | 3 | App Store listing: ask questions, adjust the plan and 'understand the why behind every workout' in chat; no evidence of coach-initiated check-ins or independent quality reports. evidence checked 2026-10-13 |
| Transparency | – | no public evidence yet |
| Value for money | 4 | USD 139/year includes the adaptive plan, unlimited coach chat, strength and nutrition guidance; below mid-market pricing but no independent reviews yet. evidence checked 2026-10-13 |
| Athlete sentiment | – | no public evidence yet |
What athletes say
Independent threads and reviews consulted, titles only; no paraphrase.
- Transition: Triathlon Training on the App Store (appstore, checked 2026-10-13)
- Transition on Google Play (appstore, checked 2026-10-13)
- Zwift forum: Transition integration now available (Apr 2026) (forum, checked 2026-10-13)
- 220 Triathlon: sponsored feature on Transition (other, checked 2026-10-13)
Common questions
What kind of AI coach is Transition?
Transition is classified as "Conversational AI coach": An LLM-based coach the athlete talks to in free text; it can explain, negotiate and change the plan, usually on top of a model-driven or rule-based planner.
Does Transition push workouts to my watch or bike computer?
Yes. The vendor states structured workouts are sent to Garmin (watches / Connect), Garmin Edge, Apple Watch, COROS, Suunto, Zwift, Rouvy, Smart trainer (ERG control in-app).
Does Transition include a human coach?
No. Transition is AI-only according to the vendor.
Does Transition adapt the plan to fatigue and sleep?
Partly: Load changes from HRV, sleep, resting HR or subjective feel without the athlete asking.
What does Transition cost?
USD 139/yr.
Which sports does Transition coach?
Triathlon, Swimming, Cycling, Running, Strength.
Similar tools
AI Endurance LLM coach · enduco LLM coach · Athletica Model · CoachCat LLM coach · Garmin Coach Rules
Vendor sources consulted
- Transition homepage checked 2026-10-13
- Transition pricing checked 2026-10-13
- Transition features checked 2026-10-13
- Transition compatible devices checked 2026-10-13
- Transition about checked 2026-10-13