Comparison

Cycle Sync Running Coach vs HerMoon

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Cycle Sync Running Coach

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Some weeks you feel unstoppable. Others, a 5k feels like a marathon. That's not a lack of discipline โ€” 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 โ€” 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 โ€” base, build, peak, taper โ€” and race day itself never moves. ADAPTS WHEN YOU DO Log how you feel in seconds โ€” 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 โ€” 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 โ€” 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 โ€” 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 โ€” your phase, your plan, and how the last few weeks have trended โ€” 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 โ€” every workout retuned to your phase and your logged symptoms โ€” 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/

About

HerMoon

Features
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HerMoon is a calm, private period and cycle tracker designed to make everyday logging simple. Record period dates and daily flow, view your cycle history, and see cautious estimates based on the information you enter. Multiple local profiles make it possible for families to track separately on one device. HerMoon includes: โ€ข Quick period start and daily flow logging โ€ข Calendar history and cycle pattern insights โ€ข Prediction ranges that account for cycle variability โ€ข Optional Face ID or device-passcode app lock โ€ข Optional local reminder before an estimated cycle window โ€ข Password-protected encrypted backups โ€ข Local profile and data-deletion controls Your cycle information is stored locally on your device. No account is required, and the current version does not automatically synchronize health information to a server. HerMoon is intended for personal tracking and cycle awareness. It does not provide medical advice, diagnosis, or treatment.

Screenshots

Cycle Sync Running Coach4 screens
HerMoon4 screens

Verdict

The call

The clearest difference is in-app purchases: HerMoon at none against Cycle Sync Running Coach's 2. HerMoon also leads on update cadence (every 2 days vs every 5 days) and device support (3 vs 1). On price and ads there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Cycle Sync Running Coach sells 2 in-app purchases, starting at $12.99 per month. HerMoon asks for nothing beyond the download.

UpkeepUpdate frequency

Cycle Sync Running Coach ships an update every 5 days, HerMoon every 2 days. Both last shipped on October 31, 2026.

Scorecard4 real differences ยท 2 level
Cycle Sync Running Coach versus HerMoon: the parameters behind the verdict, then further details
ParameterCycle Sync Running CoachHerMoon
PriceFreeFree
Update frequencyEvery 5 daysEvery 2 days โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPad, iPod โ€” better
Requires iOS18.015.0 โ€” better
Further details โ€” not scored
Size6 MB23 MB
Age rating4+4+
DeveloperDenis Vladimirovic GolubevManmeet Nain

In-app purchases

2 purchases

Cycle Sync Running Coach

Subscriptions2
  • Premium Monthly7 Days trial$12.991 Month
  • Premium Annual7 Days trial$79.991 Year
None

HerMoon

No in-app purchases

Questions

Is Cycle Sync Running Coach free?
Cycle Sync Running Coach is free to download, with in-app purchases available.
Is HerMoon free?
HerMoon is free to download, with no in-app purchases.
Do Cycle Sync Running Coach or HerMoon have ads?
Neither Cycle Sync Running Coach nor HerMoon shows ads.
Which is updated more often, Cycle Sync Running Coach or HerMoon?
Cycle Sync Running Coach ships an update every 5 days, and HerMoon every 2 days. Most recently, Cycle Sync Running Coach was updated on October 31, 2026 and HerMoon on October 31, 2026.

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