β›΅ Maren

Your cycle, your mood,
your data.

Maren is a privacy-first period, mood & symptom tracker. Your health data stays on your device β€” we never see it, sell it, or lock it behind a paywall.

Free forever for tracking Β· Premium monthly/yearly subscriptions or a one-time lifetime purchase

Privacy first

We can't read your data. By design.

No accounts, no servers holding your health data, no ads, no third-party trackers.

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Local-first

All health entries live only on your device β€” never in iCloud, never on any server. Even we can't access them.

🚫

No data selling

We never sell, rent, or share your data, and embed no advertising or tracking SDKs. Period.

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Export or back up anytime

Use raw CSV/PDF export, a clinician report, or a password-encrypted manual backup. Local records remain fully deletable β€” never paywalled.

Features

Built for real cycles β€” including irregular ones.

Maren learns your cycle instead of assuming "day 14" ovulation, so it works for 15–120 day cycles, PCOS, and everything in between.

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Calendar & phases

Track flow, see the four cycle phases color-coded, with honest confidence ranges β€” not fake precision.

🧠

Adaptive prediction

Statistical model that adapts to your history and shows a range, not a false "exact day".

😊

Mood & body signals

Log mood, energy, pain, sleep, weight, basal body temperature, spotting, notes, and custom items.

✨

Personal insights

On-device trends, recent-cycle comparison, and correlation exploration. Premium.

⏰

Smart reminders

Period, PMS self-care, and phase-aware nudges. Medication multi-time & weekday scheduling. Premium.

❀️

Apple Health

Choose menstrual flow, body mass, sleep, basal temperature, spotting, step count, or Apple Exercise Time. Sleep, steps, and exercise time are read-only; no Health data is sent to a developer server.

⌚

Watch, Widget & Shortcuts

Quick-log with App Shortcuts, an interactive widget, or the Apple Watch app and Smart Stack.

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Clinician report

Generate a structured PDF for a healthcare visit. Maren warns you that shared CSV/PDF files are not encrypted.

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Encrypted manual backup

Export a password-encrypted backup, preview it before import, and choose safe merge or confirmed replacement.

Pricing

Free forever. Premium when you want more.

Tracking, basic prediction, Sample Experience, raw export, fixed clinician reports, encrypted backup, and deletion are always free. Cancel subscriptions anytime.

Free
$0
forever

Tracking, basic prediction, free Perimenopause 30/90-day record summary, Sample Experience, raw export, fixed clinician report, encrypted backup, app lock, Apple Health, and quick actions.

Premium Β· Monthly
StoreKit price
auto-renewing / month

Advanced on-device insights, deeper trends, cycle comparison, correlation explorer, customizable reports, advanced reminders, additional accent themes, and unlimited custom items.

Premium Β· Yearly
StoreKit price
auto-renewing / year

Everything in Premium, billed yearly. Eligible new subscribers may see Apple’s configured 7-day introductory trial.

Premium Β· Lifetime
StoreKit price
one-time, forever

One non-consumable purchase with permanent Premium access and no automatic renewal.

Not a contraceptive. Maren is a tracking & insight tool for personal awareness. It is not a medical device and does not provide medical advice or guarantees about fertility, ovulation, or pregnancy prevention. Predictions are estimates and may be inaccurate, especially for irregular cycles. Always consult a qualified healthcare professional for medical decisions.

Coming to the App Store.

Maren is built for iPhone (iOS 17+), with an Apple Watch app and home-screen widgets.

View on GitHub