Signl Cycle

Signl Cycle · 1 of 3

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Your cycle is
data. Not drama.

Signl Cycle uses a clinically validated tool called the DRSP — the same symptom scale doctors use — to detect patterns in your hormonal cycle that most apps completely miss.

Daily check-ins. Real pattern detection. A report you can actually bring to a doctor.

Signl Cycle · 2 of 3

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Two cycles
tell the story.

PMDD and PMS can only be confirmed by tracking symptoms prospectively — meaning daily, as they happen, not from memory.

The average time to PMDD diagnosis is 20 years. Signl Cycle gives you documented, timestamped evidence in 2 cycles. That changes the conversation with your doctor entirely.

Signl Cycle · 3 of 3

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Built for you.
Free. Always.

Signl Cycle will never charge you for your own health data. No paywalls. No ads. No selling your information.

You'll get pattern detection, a clinical report you can share with your provider, and AI-powered weekly insights — all free, because access is the whole point.

Signl Cycle

Know your body.
Trust your data.

Built by a Black woman with PMDD. Designed to detect your hormonal pattern, protect your energy, and contribute to the research that has been underfunded for too long.

Create account

Password

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⚡ Continue as guest

Your data stays on this device only. Clear your browser and it's gone. Create an account anytime to protect it.

Signl Cycle

🔬 Research participation

Help us understand
this better.

Signl Cycle was built to fill a gap in women's health research. With your explicit consent, your anonymized data can contribute to the largest real-world menstrual condition dataset ever built — by women, for women.

🔒 What's collected if you opt in

Anonymized cycle day + phase
DRSP symptom scores (numeric only)
Mood scores (numeric only)
Detected pattern onset day

Never collected: your name, email, notes, or anything identifying.

🛡️ Your rights

Withdraw at any time in Settings. Withdrawing removes your data from the research pool. We will never sell your data.

🔬 Where it goes

Anonymized aggregate data is shared with research partners including IAPMD. You are building the evidence base that has been ignored for decades.

Choose your level:

✦ Contribute to research

Share anonymized DRSP scores with PMDD research partners. Withdraw anytime.

Track privately only

Nothing shared. Ever.

You can change this anytime in Settings → Research.

Signl Cycle

What are you
dealing with?

Select everything that applies. Your daily check-in will be customized for your conditions using DRSP-aligned symptom tracking.

Signl Cycle

Hi. We're glad
you're here.

Signl Cycle was built because women have gone too long without tools that take their health seriously. This app is yours — free, private, and designed to actually help.

Let's start with your name.

First name

Birth year — helps contextualize your cycle data

Signl Cycle

Import your
cycle data.

More history = faster pattern detection. Choose your source or start fresh — you can always add more later.

🍎

Apple Health XML

Health → profile photo → Export All Health Data

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Apple Health PDF

Cycle Tracking → Your Cycles → Export PDF

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Clue

CSV export from Clue settings

✍️

Start manually

Enter dates yourself

Signl Cycle

Anything that
affects your cycle?

Medications and supplements can significantly affect your cycle and mood patterns. Adding them means your clinical report will include this context for your provider.

Completely optional — skip or update anytime in Settings.

Common ones — tap to add

Birth control pill

IUD (hormonal)

IUD (copper)

SSRI / antidepressant

SNRI

Progesterone

Estrogen

Magnesium

Vitamin B6

Vitamin D

Melatonin

Vitex / Chasteberry

Signl Cycle

Almost there,
friend.

Daily check-ins are what make the pattern visible. The more consistently you log, the faster we confirm your pattern and the stronger your clinical report becomes.

Enable daily reminder

Browser notification

Today ·

—

⚠️

📋

Daily check-in

Today

How are you feeling overall?

😔

😟

😐

🙂

😊

Check-in style

↔ Swipe cards

😊 Emoji scale

☰ Classic list

⚡ Quick (5 items)

◎ Detailed (all)

✦ AI reads language patterns, not just what you check

Key dates

Cycle Map

Your cycle,
mapped.

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of 28

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Symptom timeline

Mood & symptom history

Across your logged days

Mood

DRSP score

Luteal/PMDD

Phase timeline

Symptom intensity map

Calendar

‹

›

Insights

Pattern
intelligence.

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Weekly insight

Analyzing your patterns...

DSM-5 PMDD criteria

⚠ 48-Hour Rule Active

You're in your PMDD window. Any decision that feels urgent right now gets a 48-hour hold. Write it down. Sleep on it. Common patterns: impulsive quitting, emotional spirals, relationship conflicts, drastic changes.

Research contribution

Your participation status

History

Check-in
log.

Settings

Your
preferences.

Account

👤

Guest mode

Data saved locally only

›

Profile

✏️

Name & birth year

Tap to edit

›

My conditions

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Condition profile

Tap to manage

›

Research

🔬

Research participation

Tap to manage

›

Cycle

📅

Last period start

—

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Cycle length

28 days

Notifications

🔔

Daily reminder

Off

Data

📄

Generate clinical report

DRSP-aligned · Doctor-ready PDF

›

📂

Import data

Apple Health XML or Clue CSV

›

📄

Import from Apple Health PDF

Cycle Tracking → Export PDF

›

⬆️

Export my data

Download JSON

›

🗑️

Delete all data

Permanent

›

All personal data encrypted at rest. Nothing shared without explicit consent. 🔒

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More mental health insights coming soon

Signl Cycle is part of something bigger. A companion app for broader mental health tracking — connecting your cycle data to the full picture — is on the way.

Built by Dynamack. Signl Cycle v3.0