Cycle Sync vs KORE Cycle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cycle Sync
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CYCLE-AWARE CALENDAR CycleSync helps professional women align their work schedules with their natural menstrual cycle phases. Instead of fighting through low-energy days, you get smart suggestions to move demanding meetings to days when your focus and energy peak. WORK WITH YOUR RHYTHM, NOT AGAINST IT Your cycle isn't an obstacle. It's a compass. Menstrual Phase (Winter) Rest and recovery. Reschedule high-stakes meetings. Follicular Phase (Spring) Rising energy. Schedule creative work and planning. Ovulation Phase (Summer) Peak performance. Take on negotiations and leadership. Luteal Phase (Autumn) Focused wind-down. Finish projects and organize. SMART RESCHEDULING CycleSync connects to your calendar and automatically detects: • Events on heavy-flow days • Events on rest-phase days • Dense meeting days during focus phases (3+ events) One tap on a conflict card opens the Time Slot Picker. Your available slots on better days are pre-calculated. Reschedule in seconds. An undo option gives you 10 seconds to reverse. NO AI. NO GUESSING. The recommendation engine is rule-based: 1. Your cycle history predicts your phase for any date. 2. Your phase preferences determine focus or rest classifications. 3. Your calendar events are flagged when they conflict with your classifications. 4. Available slots on recommended-phase days enable one-tap rescheduling. WHAT'S FREE • Cycle logging and phase prediction • Calendar sync (Apple Calendar and Google Calendar) • Dashboard with today's phase and a 7-day overview • Basic conflict detection • Five notification types including phase transitions, daily insights, and period predictions • Cycle history for the last three cycles • Focus and rest customization for each phase • Light, Dark, and System themes WHAT'S PRO Unlock everything: • Unlimited reschedule suggestions • One-tap rescheduling with undo • Advanced conflict detection • Unlimited phase history • Priority notifications • Tomorrow's preview alerts • Re-engagement reminders PRIVACY FIRST • All cycle data is stored locally on your device • No cloud sync and no tracking • Health data is read-only from Apple Health • Export your data anytime as JSON or CSV HOW TO START 1. Open CycleSync and log your last period start date. 2. Connect your calendar using Apple Calendar or Google Calendar. 3. Set your typical cycle length (default: 28 days). 4. Review your dashboard. Suggested reschedules appear automatically. Download CycleSync and work with your natural rhythm. By subscribing, you agree to our Terms of Use (EULA): https://cyclesync.tunnxo.com/legal/eula.html Privacy Policy: https://cyclesync.tunnxo.com/legal/privacy.html
KORE Cycle
This app offers private cycle tracking, logging flow, symptoms, and moods. It provides a daily oracle based on your logged patterns and allows you to export your cycle history for your doctor. It also includes herbal wisdom and a star chart, all working offline with no data collected by the developer.
- Private cycle tracking
- Log flow, symptoms, and moods
- Offline functionality
- Daily oracle based on personal patterns
- PDF export for healthcare providers
- Herbal wisdom and star chart
- Data export and deletion
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KORE Cycle keeps your data on your phone. Not encrypted on our servers, not anonymized in a database. On your phone. There's no account to create and no cloud sync running behind your back. Our privacy label reads "Data Not Collected" because there's nothing on our end to collect it with. TRACK YOUR CYCLE Log flow, symptoms, and moods in a few taps. Kore learns your rhythm and shows you where you are in your cycle, alongside the moon at its actual phase tonight. Everything works offline. A DAILY ORACLE Kore's Oracle reads your own logged patterns, not a syndicated horoscope. The longer you track, the more it knows you. BRING YOUR DOCTOR IN, IF YOU WANT Turn your cycle history into a clean PDF summary for your provider. Generated on your device, shared only when you decide. THE SANCTUARY Herbal wisdom, rituals, and lore for those who walk with the moon, plus a star chart of the sky above you. LEAVE WHENEVER Export a full backup anytime. Or delete everything, permanently, in one action. KORE Cycle is free at launch. The whole app, no paywall. Built by the founder who thinks your cycle is nobody's business but yours.
Screenshots
Verdict
The clearest difference is in-app purchases: KORE Cycle at none against Cycle Sync's 3. KORE Cycle also leads on iOS requirement (15.0 vs 18.2). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Cycle Sync sells 3 in-app purchases, starting at $4.99 per 7 days. KORE Cycle asks for nothing beyond the download.
| Parameter | Cycle Sync | KORE Cycle |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 55 MB | 32 MB |
| Age rating | 4+ | 12+ |
| Developer | Amit Kairon | ANGEL ANN THURMAN ROBERTSON |
In-app purchases
Cycle Sync
- CycleSync Pro — Weekly$4.997 Days
- CycleSync Pro$9.991 Month
- CycleSync Pro$59.991 Year
KORE Cycle
No in-app purchases









