Comparison

Cadence Period Tracker vs Flow

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

Head to head
About

Cadence Period Tracker

This app helps you track your menstrual cycle with accurate predictions and gentle reminders. It offers a unique feature to share cycle information with a partner, fostering better synchronization and understanding. Your data is private and encrypted, with optional integration with Apple Health.

Highlights
  • Period cycle prediction
  • Partner cycle sharing
  • Apple Health two-way sync
  • Customizable reminders
  • End-to-end data encryption
  • Calendar history view
Features
Read full description

Cadence is a thoughtful period tracker built for both you and your partner. Log your cycle in seconds. Cadence predicts your next period from your history, surfaces a clean countdown on the home screen, and quietly nudges you before it arrives. CONNECT WITH YOUR PARTNER Share a code with the person you trust so they can see when your next cycle is coming. They get the same countdown on their phone — no awkward guesswork, no surprise grocery store runs. Just a calmer, more in-sync household. PRIVATE BY DESIGN Your cycle data is end-to-end encrypted. We don't sell it. We don't share it. The only people who see it are you and the partner you choose to share it with. We use non-personalized advertising only and do not request tracking permission. APPLE HEALTH SYNC Two-way sync with Apple Health's Menstrual Cycle category. Already tracking in another app? Import everything in one tap. Want your Cadence history back in Apple Health? Same. GENTLE REMINDERS Choose which heads-ups feel right: three days, two days, one day before, day-of. Each one is a soft nudge — not a notification firehose. Partners get reminded too, on their side. WHAT YOU GET • Clean countdown to your next predicted period • Calendar history with patterns visible at a glance • Partner-side view so the person you trust stays in sync • Apple Health two-way sync (read + write) • Optional reminders at 3, 2, 1, and 0 days before • Local-first caching so the app works fast even on a flaky connection • Encrypted backups — your cycle data is yours WHY CADENCE Most period trackers are designed for one person. Cadence is built around the reality that a cycle affects more than one life. Whether you want to share with a partner or keep it solo, the app gets out of your way and just works. Cadence is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease. For medical advice, please consult a healthcare professional.

About

Flow

Features
Read full description

FlowSync is your intelligent period and cycle tracking companion. With a beautiful, intuitive calendar interface, FlowSync helps you understand your body's natural rhythms. KEY FEATURES: • Smart Calendar — Visual cycle tracking with color-coded days for period, fertile window, and ovulation • Period Predictions — AI-powered cycle predictions based on your history • Symptom Tracking — Log mood, energy, cramps, and other symptoms daily • Today View — At-a-glance dashboard showing cycle day, phase, and upcoming events • Cycle Insights — Understand your patterns with detailed cycle analysis • Beautiful Design — Clean, modern interface that's a joy to use FlowSync is designed for informational and general wellness purposes only. It is not intended to be used for contraception, medical advice, diagnosis, or treatment. Always consult your healthcare provider for medical concerns.

Screenshots

Cadence Period Tracker3 screens
Flow4 screens

Verdict

The call

The clearest difference is ads: Flow at none against Cadence Period Tracker's shown. Flow also leads on update cadence (every 3 weeks vs every 2 months). Cadence Period Tracker's advantage is iOS requirement (15.1 vs 17.0). On price, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Cadence Period Tracker ships an update every 2 months, Flow every 3 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Cadence Period Tracker versus Flow: the parameters behind the verdict, then further details
ParameterCadence Period TrackerFlow
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size47 MB4 MB
Age rating12+4+
DeveloperTrevor Frese拥军 刘

In-app purchases

None

Cadence Period Tracker

No in-app purchases

None

Flow

No in-app purchases

Questions

Is Cadence Period Tracker free?
Cadence Period Tracker is free to download, with no in-app purchases.
Is Flow free?
Flow is free to download, with no in-app purchases.
Do Cadence Period Tracker or Flow have ads?
Cadence Period Tracker shows ads; Flow does not.
Which is updated more often, Cadence Period Tracker or Flow?
Cadence Period Tracker ships an update every 2 months, and Flow every 3 weeks. Most recently, Cadence Period Tracker was updated on October 28, 2026 and Flow on October 24, 2026.

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