Comparison

CalmFlow vs MoonVault

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

Head to head
About

CalmFlow

Features
Read full description

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/

About

MoonVault

Features
Read full description

MoonVault is a privacy-first period diary designed for calm, local cycle tracking. No account is required. There are no ads. There is no third-party tracking. Your basic tracking stays on your device by default, and optional cloud backup can be turned on for your account when you want it. With MoonVault you can: - Log period start and end dates. - Track flow level, symptoms, mood, and private notes. - See logged and estimated days on a clean calendar. - Follow local insights such as average cycle and period length. - Receive gentle morning, noon, and evening support messages. - Use safe self-care cards without exposing sensitive details. MoonVault does not provide medical advice, diagnosis, treatment, contraception, or fertility guarantees. Predictions are estimates based on the information you enter. For health decisions, consult a qualified healthcare professional. YOUR DAILY RECORD, AT YOUR PACE - Mark today as a period start or edit earlier entries. - Record light, medium, or heavy flow. - Select cramps, headache, bloating, fatigue, nausea, cravings, and other symptoms. - Add your mood and a private journal note in a few taps. CALENDAR AND ON-DEVICE ESTIMATES See logged period days and upcoming estimated days in distinct calendar styles. With enough history, MoonVault calculates average cycle and period length on your device. Until then, it uses the usual lengths you choose in settings. Future dates are always labeled as estimates and are never presented as contraception or fertility guarantees. CARE FOR BODY AND MOOD TOGETHER Gentle wellness messages, your chosen guide character, and optional morning, midday, and evening reminders create small moments of support. Notification wording avoids revealing explicit cycle details on the lock screen. Self-care cards never include exact dates or private journal content. PRIVACY YOU CONTROL MoonVault does not require an email address, phone number, or profile to start. Basic tracking stays on your device by default. If you want, you can turn on optional cloud backup for your account, then restore or delete that backup later. Delete all local data at any time from settings. On supported devices, app lock and Face ID add another layer of protection. Deleting the app may also delete local data if it has not been backed up separately. FREE CORE TRACKING, OPTIONAL PLUS Period logging, calendar, mood, symptoms, and basic estimates remain available. MoonVault Plus adds more themes, personalization, guide choices, and reminder controls without blocking the essential cycle diary. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

CalmFlow4 screens
MoonVault4 screens

Verdict

The call

The clearest difference is update cadence: MoonVault at every 2 days against CalmFlow's every 3 months. MoonVault also leads on iOS requirement (13.0 vs 15.1). On price, ads, 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. CalmFlow sells 2 in-app purchases, starting at $4.99 per month and MoonVault sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

CalmFlow ships an update every 3 months, MoonVault every 2 days. The most recent releases landed on October 1, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 4 level
CalmFlow versus MoonVault: the parameters behind the verdict, then further details
ParameterCalmFlowMoonVault
PriceFreeFree
Update frequencyEvery 3 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size52 MB56 MB
Age rating4+4+
DeveloperMark MagerAHMET MAMI

In-app purchases

2 purchases

CalmFlow

Subscriptions2
  • CalmFlow Pro Monthly$4.991 Month
  • CalmFlow Pro Yearly$29.991 Year
3 purchases

MoonVault

Subscriptions2
  • MoonVault Plus Monthly$2.991 Month
  • MoonVault Plus Yearly$19.991 Year
One-time1
  • MoonVault Plus Lifetime$37.00

Questions

Is CalmFlow free?
CalmFlow is free to download, with in-app purchases available.
Is MoonVault free?
MoonVault is free to download, with in-app purchases available.
Do CalmFlow or MoonVault have ads?
Neither CalmFlow nor MoonVault shows ads.
Which is updated more often, CalmFlow or MoonVault?
CalmFlow ships an update every 3 months, and MoonVault every 2 days. Most recently, CalmFlow was updated on October 1, 2026 and MoonVault on October 15, 2026.

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