Comparison

CalmFlow vs Period Synced

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

Head to head
About

CalmFlow

Features
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CalmFlow is a private menopause companion designed to help you track symptoms, notice possible patterns, and find practical support for everyday moments. Whether you're in perimenopause, menopause, postmenopause, or you're not quite sure, CalmFlow gives you a simple place to understand your experience over time. TRACK WHAT MATTERS โ€ข Quickly log hot flashes, night sweats, sleep, brain fog, mood, energy, and more โ€ข Add severity, notes, duration, and daily context when you want more detail โ€ข Keep a personal history of what you've been experiencing DISCOVER POSSIBLE PATTERNS โ€ข See summaries based on your own tracking history โ€ข Explore possible associations between symptoms and daily context โ€ข Review longer-term patterns as your history grows FIND RELIEF IN THE MOMENT โ€ข Access practical cooling, relaxation, sleep, and grounding tools โ€ข Find everyday strategies organized around what you need right now โ€ข Save useful strategies for later PREPARE FOR APPOINTMENTS โ€ข Turn your tracking history into useful summaries โ€ข Export information for your own records or to discuss with a healthcare professional PRIVATE BY DESIGN Your health logs stay on your device. No CalmFlow account is required. Purchases are securely managed through Apple. CALMFLOW PRO Unlock the complete CalmFlow experience with a one-time purchase โ€” no subscription required. CalmFlow Pro includes: โ€ข Longer-term symptom patterns โ€ข Deeper and longer-term insights โ€ข Full Relief library โ€ข Appointment summaries โ€ข PDF appointment reports and data export IMPORTANT CalmFlow is intended for wellness tracking, education, and personal health observations. It does not diagnose medical conditions or provide medical advice, diagnosis, or treatment. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Period Synced

Features
Read full description

Train with your cycle, not against it. Period Synced is a workout interval timer that adapts your training intensity to where you are in your menstrual cycle. It's a precision gym timer first โ€” with phase-aware suggestions layered on top. If you've ever wondered why some weeks every set feels light and other weeks the same warm-up wrecks you, your hormones are part of the answer. Period Synced helps you read that signal and time your effort accordingly. WHAT YOU GET - A full-featured workout interval timer - HIIT, Tabata, EMOM, AMRAP, For Time, and fully custom interval sequences - Smooth circular timer with crisp audio cues and haptic feedback - Phase-aware intensity suggestions for every workout - Cycle visualization with a four-phase ring you can read at a glance - Curated workout library organized by cycle phase - Workout history with stats, streaks, and progress charts - Six languages, dark-mode friendly palette, clean modern interface TIMER MODES HIIT โ€” set work, rest, and rounds. Get a 3-2-1 countdown and bell on every interval change. Tabata โ€” classic 20 / 10 protocol, 8 rounds, ready in one tap. EMOM โ€” every minute on the minute, with a clear interval indicator. AMRAP โ€” as many rounds as possible, with a clean countdown. For Time โ€” count up, track your PR. Custom โ€” build any interval sequence you want, name each segment, save it. CYCLE PHASE INTELLIGENCE The four phases of the menstrual cycle each shift your energy, recovery, and strength capacity. Period Synced calculates your current phase from your last period start and suggests how to train: Menstrual โ€” lower intensity, mobility, gentle movement, recovery focus. Follicular โ€” energy rising. Strength building, progressive overload, new challenges. Ovulation โ€” peak performance window. Sprints, heavy lifts, personal records. Luteal โ€” winding down. Steady cardio, moderate strength, more recovery between sessions. These are guidance, not rules. Skip them, override them, or use them as a starting point โ€” the timer works on its own. WORKOUT LIBRARY Twelve curated templates organized by phase. Mobility flows for your menstrual phase. Strength builders for your follicular phase. HIIT peak-power sessions for your ovulatory window. Steady endurance for your luteal phase. Tap to load any template straight into the timer. INSIGHTS Track total workouts, active minutes, current streak, and most active phase. See your weekly activity chart and phase distribution. Build a picture of how you actually train across a full cycle. PRIVACY FIRST Your cycle data lives on your device. No account required. No sign-up. No third-party data sharing beyond what's required to deliver ads โ€” and you control that with a built-in consent center you can change any time. SIX LANGUAGES English, Spanish, French, Italian, German, Portuguese. WHO IT'S FOR People who lift, run, do HIIT, train for events, or just want a clean interval timer with one more layer of intelligence on top. If you menstruate and you train, this is built for you. If you don't, the timer still works beautifully โ€” the cycle layer is opt-in. IMPORTANT This app provides general fitness guidance, not medical advice. It is not a contraceptive aid and should not be used to predict fertility. Consult a qualified healthcare provider for medical questions about your cycle or training. Privacy Policy: https://silvervalleyprintco.com/privacy_policies.html Questions, suggestions, bug reports โ€” get in touch through the App Store contact link. We read everything.

Screenshots

CalmFlow4 screens
Period Synced4 screens

Verdict

The call

The clearest difference is in-app purchases: Period Synced at none against CalmFlow's 2. Period Synced also leads on iOS requirement (13.0 vs 15.1). CalmFlow's advantage is ads (none vs shown). On price and device support 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. CalmFlow sells 2 in-app purchases, starting at $4.99 per month. Period Synced asks for nothing beyond the download.

Scorecard3 real differences ยท 3 level
CalmFlow versus Period Synced: the parameters behind the verdict, then further details
ParameterCalmFlowPeriod Synced
PriceFreeFree
Update frequencyEvery 3 monthsโ€”
AdsNo โ€” betterYes
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 โ€” better
Further details โ€” not scored
Size52 MB29 MB
Age rating4+4+
DeveloperMark MagerFerran Espuna

In-app purchases

2 purchases

CalmFlow

Subscriptions2
  • CalmFlow Pro Monthly$4.991 Month
  • CalmFlow Pro Yearly$29.991 Year
None

Period Synced

No in-app purchases

Questions

Is CalmFlow free?
CalmFlow is free to download, with in-app purchases available.
Is Period Synced free?
Period Synced is free to download, with no in-app purchases.
Do CalmFlow or Period Synced have ads?
Period Synced shows ads; CalmFlow does not.

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