Comparison

Haven vs Calla

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

Head to head
About

Haven

This app helps women understand their menstrual cycles through personalized predictions, symptom tracking, and an AI wellness companion. It offers partner sharing and robust privacy features to support overall well-being.

Highlights
  • AI wellness companion for menstrual health insights
  • Partner sharing and sync for support
  • Personalized period and ovulation predictions
  • Track over 30 symptoms and wellness indicators
  • Privacy-focused with passcode/Face ID protection
  • Customizable reminders for periods and pills
Features
Read full description

Unlock the rhythm of your body with Period Tracker & My Calendar — a beautifully designed, privacy-first cycle tracker made for modern women. Overview Understanding your menstrual cycle is about more than just dates. It’s about recognizing patterns in your mood, energy, and overall well-being. Whether you're tracking your cycle, planning for pregnancy, or simply learning more about your body, Period Tracker & My Calendar helps you stay informed with clarity and confidence. Why Choose Us? AI Wellness Companion Meet your in-app AI companion designed to provide educational information about menstrual health, PMS, symptoms, and cycle-related topics. Ask questions anytime and receive helpful, easy-to-understand insights to support your wellness journey. AI responses are for informational purposes only and are not medical advice. Partner Support & Sync Strengthen communication with optional partner sharing. Choose to share selected cycle updates with your partner so they can better understand and support you. You stay fully in control of what information is shared and can revoke access at any time. Personalized Predictions Receive personalized forecasts for your upcoming period, fertile window, and ovulation day. Our algorithm adapts to your unique cycle data over time to improve prediction accuracy. Holistic Health Tracking Log over 30+ symptoms and wellness indicators, including: • Mood changes • Flow intensity • Weight tracking • Basal Body Temperature (BBT) • Sleep patterns Visualize your trends with clean, easy-to-read charts designed for clarity and comfort. Designed for Privacy Your health data is personal. We use industry-standard security practices and optional passcode/Face ID protection to help keep your information safe. You are always in control of your data. Key Tracking Tools Cycle & Flow — Track period dates, duration, and intensity Mood Tracker — Identify emotional patterns across your cycle Weight & BBT — Monitor body changes over time Sleep Log — Understand how rest connects to your cycle Smart Reminders — Get customizable notifications for periods, ovulation, and pill intake Subscription Information Subscription Plans: • Monthly Subscription: $4.99 per month • Yearly Subscription: $19.99 per year Subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current period. Payment will be charged to your Apple ID account at confirmation of purchase. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your App Store Account Settings after purchase. Important Medical Disclaimer Not for Contraception This app is a tracking tool and should not be used as a method of birth control. Informational Use Only The information provided by this app, including AI-generated responses, is for educational purposes only and is not intended as medical advice, diagnosis, or treatment. Consult a Healthcare Professional Always seek the advice of a qualified healthcare provider regarding any medical concerns. Stay Connected Privacy Policy: https://sites.google.com/view/iosperiodtracker/ Terms of Use: https://sites.google.com/view/iosperiodtrackeraipartner/ Support: moontemplee@gmail.com

About

Calla

This app helps teens understand their menstrual cycles with privacy-focused tracking. It learns individual patterns for accurate predictions and allows logging of various symptoms to connect with cycle phases. Optional parent sharing provides a simple wellness update without revealing sensitive data.

Highlights
  • Personalized cycle predictions
  • Symptom and mood logging
  • Age-appropriate cycle insights
  • Prep-day period reminders
  • Optional parent wellness sharing
  • Privacy-first data storage
Features
Read full description

Most period apps were built for adults trying to get pregnant. Calla wasn't. It's built for teens who just want to understand what's happening in their body - without the noise, the upsells, or the ovulation countdowns. Your data lives on your phone. No accounts required. No ads. No third parties, no data brokers, no advertisers. Optional parent share, if you want it. Privacy-first. Always. All your data stays on your phone. No accounts. No cloud. No ads. No data selling. Period. Built for how your body actually works Irregular cycles? That's normal, especially when you're starting out. Calla doesn't just assume a 28-day cycle - it learns your patterns and gives you predictions that actually make sense for your body. Track what matters to you Log your period, flow level, mood, energy, cramps, sleep, skin, focus, appetite, and activity. See how your cycle connects to how you feel day to day. Understand your cycle Get gentle, age-appropriate insights about each phase of your cycle - what's happening in your body and what to expect. Prep-day reminders Get a heads-up before your period is predicted to start so you're never caught off guard. Parent Mode Share a simple wellness signal with a parent or guardian - "all good" or "heads up" - without revealing any cycle details. Communication on your terms. Calla is not a medical app. It does not diagnose, treat, or prevent any medical condition. If you have health concerns, talk to a doctor.

Screenshots

Haven4 screens
Calla4 screens

Verdict

The call

The clearest difference is in-app purchases: Calla at none against Haven's 3. On price, ads, device support and iOS requirement 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. Haven sells 3 in-app purchases, starting at $7.99 per month. Calla asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Haven versus Calla: the parameters behind the verdict, then further details
ParameterHavenCalla
PriceFreeFree
Rating—4.8 (4 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—4 — better
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size121 MB33 MB
Age rating12+12+
DeveloperMOON TEMPLE LIMITEDRoxana Heitz

In-app purchases

3 purchases

Haven

Subscriptions3
  • 1 Month$7.991 Month
  • 12 Month$29.991 Year
  • 12 Months7 Days trial$29.991 Year
None

Calla

No in-app purchases

Questions

Is Haven free?
Haven is free to download, with in-app purchases available.
Is Calla free?
Calla is free to download, with no in-app purchases.
Do Haven or Calla have ads?
Neither Haven nor Calla shows ads.

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