
Cycle Sync Running Coach
Period Training 5K to Marathon
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Free
In-App Purchases
About
Some weeks you feel unstoppable. Others, a 5k feels like a marathon. That's not
a lack of discipline — it's your cycle, and most training plans ignore it
completely.
Cycle Sync builds your running week around where you actually are this month.
CYCLE-AWARE TRAINING
With Premium, your plan shifts with your phase. Quality sessions stay as written
in the follicular and ovulatory phases. Volume over intensity through the luteal
phase. Gentle, honest days when you're bleeding — never a hard session prescribed on a
day your body is doing something else. Training for a 5k, 10k, half or marathon?
Your week periodizes toward race day — base, build, peak, taper — and race day
itself never moves.
ADAPTS WHEN YOU DO
Log how you feel in seconds — energy, cramps, sleep, flow. With Premium, your
week adjusts around it. Missing a run or easing off isn't failure and Cycle Sync never treats it
that way. No streaks to break, no guilt, no red rings shaming you.
AN AI COACH THAT KNOWS YOUR WEEK
Ask anything. "I have terrible cramps today." "Why is today easy?" "Can I move
my long run to Sunday?" Your coach knows your phase and your plan, explains
every change in one plain sentence, and can reshuffle your week on request. It
tells you the real reason a day looks the way it does — not a generic tip.
RUN TRACKING BUILT IN
GPS route, distance, pace and cadence. Finished runs save to Apple Health
alongside everything else.
SAFETY THAT'S HONEST
Let a trusted contact know when you head out, with a message you send yourself.
A daylight cue when you're heading into dusk. No fake live-tracking promises.
Free, always.
SEE YOUR PATTERNS
Every run is tagged with the cycle phase you were in. Once you've logged a
couple of full cycles, Cycle Sync reads your own record back to you: which phases you
run strongest in, how your energy and symptoms move through the month, and how
many of your cycles each finding rests on. Never a study's average — your
numbers. When a finding lands on a week that has a hard session in an unhelpful
window, Cycle Sync offers to move it. One tap, free for everyone, and you can put it
back. Monthly distance, pace and run trends.
PRIVACY BY DESIGN
Your cycle dates, symptom logs, routes and runs live on your iPhone and in Apple
Health. There's no account — no email, no password, no profile on a server. We
don't sell your data, don't run ads, and don't track you. To build your week and
to answer you, Cycle Sync sends a short, anonymised summary — your phase, your plan,
and how the last few weeks have trended — to an AI service. Never your name,
your dates, your raw logs, or where you run. Setup shows you that summary and
asks before any of it is sent; say no and your plan is built entirely on your
iPhone. The privacy policy spells the rest out in full.
FREE FOREVER
Run tracking, period logging and safety sharing are free and always will be.
CYCLE SYNC PREMIUM
Unlocks the cycle-adaptive layer — every workout retuned to your phase and your
logged symptoms — plus the conversational AI coach. Monthly or annual.
SUBSCRIPTION DETAILS
Cycle Sync Premium is an auto-renewable subscription, offered as Premium Monthly (one
month) or Premium Annual (one year). The price for your region is shown in your
local currency on the subscription screen before you confirm. Payment is charged
to your Apple Account at confirmation of purchase. The subscription renews
automatically for the same period unless auto-renew is turned off at least 24
hours before the end of the current period; your account is charged for renewal
within 24 hours before the period ends. Manage your subscription or turn off
auto-renew in your Apple Account settings after purchase.
Cycle Sync is a training app, not a medical device, and doesn't give medical advice.
If something feels wrong, talk to a clinician.
Privacy Policy: https://bloomcyclefitapp.github.io/bloom-privacy/
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in Cycle Sync Running Coach
1.2.1
October 1, 2026
Runs don't go missing anymore. If your iPhone is locked when you finish, or the app closes mid-run, the run is saved and its day is ticked off in your plan. With Apple Watch, the second of two back-to-back runs now gets its heart rate too. Precise Location off? The run screen now tells you why the distance stays at zero. Once your race is behind you, the plan stops counting down to it. Plus smaller fixes for travel across time zones and for the coach chat.
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Subscriptions & In-App Purchases
Premium Monthly
Cycle-adaptive plans and your AI coach, monthly.
$12.991 Month
7 Days trial








