Comparison

Sync vs CycleHaven

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

Head to head
About

Sync

A privacy-focused period tracker that stores all your data locally on your device. It offers a simple and ad-free experience for managing your menstrual cycle.

Highlights
  • Privacy-focused design
  • Local data storage
  • Ad-free experience
  • Simple interface
  • Cycle tracking
Features
Read full description

Sync Period tracks cycles locally and supports private sharing with a partner or friend. Log periods, symptoms, moods, and notes; view your calendar and pattern summaries; set optional reminders; and import supported Flo, Clue, Drip, or generic CSV data after reviewing what Sync can recognize. Your cycle history is encrypted on your device. Private predictions adapt to your recent cycle history and confirmed corrections entirely on your device. Sync shows a likely-start window and confidence level, learns recurring pre-period patterns, and can use an enabled BBT signal or positive ovulation test without uploading those health details. Predictions become more cautious when history is sparse or variable. Partner sharing is optional and off by default. You choose which supported cycle details to share. Updates are end-to-end encrypted and require the complete private invite to open. Each encrypted relay update expires after no more than 30 days; active sharing renews that rolling expiration when a new update is published. Recent physical symptoms and flow, sex-drive and intimacy check-ins, and moods are three separate opt-ins that can each be turned off again. Intimate sharing is off by default and never indicates consent. Discharge, medications, written notes, and other sexual details remain private. Sync Period has no ads, no behavioral analytics SDKs, and no required account. You can export a private backup or permanently delete local app data at any time. Cycle predictions and pattern summaries are estimates. Sync Period does not provide diagnosis, contraception, or medical advice.

About

CycleHaven

Features
Read full description

Cycle Haven is a calming support app designed to help parents, caregivers, and families through everyday challenges with babies, toddlers, and parenting life. Whether you need a moment to breathe, calming toddler activities, emotional support tools, or simple ways to reset during stressful moments, Cycle Haven creates a peaceful space for families. FREE FEATURES: • Babies & Toddlers calming activities • Emotional wellbeing support tools • Breathing and grounding exercises • Daily calming guidance and encouragement • Easy-to-use design built for busy parents • Smooth, fast performance across all sections PREMIUM FEATURES: Unlock additional tools and exclusive content with Cycle Haven Premium: • Extra calming activities for babies and toddlers • Expanded parenting support content • Exclusive wellness and relaxation features • Additional guided calming experiences • Premium updates and new content releases • Enhanced support tools for stressful parenting moments Cycle Haven is designed to feel comforting, supportive, and simple to use — whether you’re at home, out with your toddler, or needing a quick moment of calm during the day. Perfect for: • Parents of babies and toddlers • Caregivers and families • Stressful parenting moments • Emotional wellbeing support • Daily calming routines We’re continuously improving Cycle Haven with new features, smoother performance, and helpful content designed to support growing families every day. Privacy Policy: https://docs.google.com/document/d/1JqKNoivIckOQGzW-fK_O2ViZ_DdATiynfOcrEdO1MWU/edit?tab=t.0 terms of Serivce: https://docs.google.com/document/d/1iEs29hFArYK9hlcitFUsrPoR919lEXMWku_3cApVYi0/edit?tab=t.0

Screenshots

Sync4 screens
CycleHaven4 screens

Verdict

The call

The clearest difference is in-app purchases: Sync at none against CycleHaven's 2. Sync also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). CycleHaven's advantage is update cadence (every 4 days vs every 3 weeks). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CycleHaven sells 2 in-app purchases, starting at $4.99 per month. Sync asks for nothing beyond the download.

UpkeepUpdate frequency

Sync ships an update every 3 weeks, CycleHaven every 4 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Sync versus CycleHaven: the parameters behind the verdict, then further details
ParameterSyncCycleHaven
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size41 MB19 MB
Age rating12+12+
DeveloperWei Jian WongGelana Millewski

In-app purchases

None

Sync

No in-app purchases

2 purchases

CycleHaven

Subscriptions2
  • CycleHaven Premium Monthly7 Days trial$4.991 Month
  • CycleHaven Premium – Yearly7 Days trial$29.991 Year

Questions

Is Sync free?
Sync is free to download, with no in-app purchases.
Is CycleHaven free?
CycleHaven is free to download, with in-app purchases available.
Do Sync or CycleHaven have ads?
Neither Sync nor CycleHaven shows ads.
Which is updated more often, Sync or CycleHaven?
Sync ships an update every 3 weeks, and CycleHaven every 4 days. Most recently, Sync was updated on October 20, 2026 and CycleHaven on October 24, 2026.

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