CalmFlow vs Period.App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalmFlow
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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 • Quickly log hot flashes, night sweats, sleep, brain fog, mood, energy, and more • Add severity, notes, duration, and daily context when you want more detail • Keep a personal history of what you've been experiencing DISCOVER POSSIBLE PATTERNS • See summaries based on your own tracking history • Explore possible associations between symptoms and daily context • Review longer-term patterns as your history grows FIND RELIEF IN THE MOMENT • Access practical cooling, relaxation, sleep, and grounding tools • Find everyday strategies organized around what you need right now • Save useful strategies for later PREPARE FOR APPOINTMENTS • Turn your tracking history into useful summaries • 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 — no subscription required. CalmFlow Pro includes: • Longer-term symptom patterns • Deeper and longer-term insights • Full Relief library • Appointment summaries • 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/
Period.App
Gain insights into a partner's or daughter's menstrual cycle to better understand their needs and provide support. Receive daily updates on mood, energy, and emotional shifts, along with actionable tips for improved communication and a stronger relationship.
- Daily cycle insights
- Phase-based guidance
- Smart predictions
- Relationship-focused tips
- Mood and energy shift awareness
- Communication enhancement
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Understand her cycle. Show up better. Period. helps you understand your partner and/or daughter's menstrual cycle, predict what’s coming, and know exactly how to support her—every day. No more guessing. No more confusion. Just clear, daily insights that help you build a stronger relationship. WHAT YOU GET Daily Cycle Insights Get simple, easy-to-understand updates based on where she is in her cycle—so you always know what to expect. Phase-Based Guidance Learn how mood, energy, and emotions may shift throughout the cycle, and how to respond in a supportive way. Smart Predictions Anticipate upcoming phases, including period start, ovulation, and hormonal changes—before they happen. Relationship-Focused Tips Get actionable suggestions on what to say, what to avoid, and how to show up better in each phase. BUILT FOR REAL LIFE Period. is designed for partners who want to: Understand mood and behavior changes Communicate better Reduce conflict and confusion Strengthen emotional connection Whether you’re in a relationship, married, or navigating parenthood, Period. gives you the awareness you’ve been missing. STAY AHEAD WITH DAILY UPDATES Get ongoing insights so you’re never caught off guard. Know when to: Lean in Give space Offer support Plan ahead WHY IT WORKS Her cycle impacts more than just a few days—it affects the entire month. Period. helps you understand the full picture so you can show up with confidence. SUBSCRIPTION Period. offers a subscription for full access to all insights, predictions, and guidance. Monthly subscription 7-day free trial Cancel anytime PRIVATE & SECURE Your data is private and secure. We do not share personal information. START TODAY Download Period. and start showing up better—every day. Privacy Policy: https://app.periodbycycleaware.com/privacy Terms of Service: https://app.periodbycycleaware.com/terms
Screenshots
Verdict
CalmFlow and Period.App are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. CalmFlow sells 2 in-app purchases, starting at $4.99 per month and Period.App sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | CalmFlow | Period.App |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 52 MB | 24 MB |
| Age rating | 4+ | 17+ |
| Developer | Mark Mager | Cycle.Aware LLC |
In-app purchases
CalmFlow
- CalmFlow Pro Monthly$4.991 Month
- CalmFlow Pro Yearly$29.991 Year
Period.App
- Period. Premium7 Days trial$7.991 Month
- Period. Premium7 Days trial$59.991 Year









