A training plan should understand the context you choose to share—and stop short of guessing the rest.
Today, Transition is adding menstrual cycle tracking for athletes. You can log observed period dates, see useful timing estimates, and tell your AI coach exactly how you want cycle context handled when it creates future training.
This is not a phase-based rulebook. Transition does not infer symptoms, readiness, ovulation, or a menstrual phase from dates alone. It also will not silently move a workout that is already on your calendar.
Menstrual cycle tracking built around athlete choice
Plenty of runners, cyclists, and triathletes already track their periods somewhere. But their training plan often lives in a separate app with no access to that context—or it applies generic assumptions that may not match how the individual athlete actually feels.
Transition takes a more personal approach. Cycle tracking is optional, and you decide what to record. Your logged dates provide factual context. Your own recurring training note tells the coach how that context should influence newly generated plans.
That distinction matters: your dates are not instructions, and population averages are not your experience.
What you can track in Transition
The new Cycle section gives you one place to:
- Log period dates on a calendar, including observed start and end dates
- Edit or delete entries when a date needs correcting
- See your current cycle day based on the most recent start you recorded
- View an estimated next start after you add enough context
- Add your usual cycle length if you already know it
- Save a recurring training preference for future coaching and workout generation
The next-start estimate uses only the dates you log and, if supplied, your usual cycle length. It is an estimate—not a guarantee or medical guidance.
You can also make explicit updates through the AI coach. Tell it, “My period started today,” ask it to correct a date, or update your cycle settings in the conversation. The coach does not invent missing dates or make those changes unless you ask.
How cycle context can shape future training
Every athlete experiences their cycle differently. The most useful coaching instruction is therefore the one you write yourself.
Your recurring training note might say:
- “Keep key sessions as planned unless I tell you symptoms are affecting training.”
- “If I report low energy, ask before moving an intensity session.”
- “Favor flexibility in newly generated plans when I say my first two days are difficult.”
Transition treats that note as a planning preference, alongside the rest of the context your AI coach already uses. When the app generates future workouts, it can honor the instruction you gave it without pretending a date alone reveals how ready you are to train.
Changing a cycle setting or logging a new date does not automatically rewrite workouts already on your schedule. If you want to change an existing session, you remain in control of that decision.
What Transition deliberately does not assume
Responsible cycle-aware training starts with being honest about what the data can—and cannot—say.
Transition does not use logged dates to guess:
- How you feel today
- Whether you are ready for a hard workout
- When ovulation occurred
- Which menstrual phase you are in
- How long bleeding lasted when no end date was recorded
- Whether a new period started without an explicit entry
That boundary is intentional. A calendar can provide timing context, but your experience belongs to you. The coach should respond to what you report, not turn an estimate into a verdict.
This follows the same practical philosophy behind how Transition builds training plans: use the available evidence, personalize around the athlete, and stay honest about uncertainty.
How to turn on menstrual cycle tracking
- Update Transition to the latest version.
- Open the profile menu, then select Health.
- Enable Cycle tracking.
- Add a recent period start and, if you want, your usual cycle length.
- Write a recurring training note that reflects how you want future plans handled.
Once enabled, the Cycle section appears under Health. You can return anytime to log another date, correct an entry, change your preference, or disable tracking.
Frequently asked questions
Is menstrual cycle tracking optional?
Yes. Cycle tracking is off until you enable it. You choose whether to use it and which dates or preferences to add.
Will Transition automatically change my workouts?
No. Cycle context can inform future coaching and newly generated workouts, but logging a date or changing a preference does not alter workouts already scheduled.
Does Transition predict symptoms or menstrual phases?
No. Transition does not infer symptoms, readiness, ovulation, or menstrual phase from cycle dates. It uses observed dates as context and follows only the training preferences you explicitly provide.
Can I update cycle tracking through the AI coach?
Yes. You can explicitly ask the coach to log, correct, or delete a period start, or to update your cycle settings. It will not make those changes based on an assumption.
Training that knows more about you—on your terms
Good coaching is personal, but personalization should never require pretending to know more than the athlete has shared.
Menstrual cycle tracking gives Transition another piece of real-life context while keeping the athlete in charge of what it means for training. That is the kind of coaching we want to build: informed, adaptable, and honest.
Ready to set it up? Download Transition and open Health → Cycle tracking.
