Pricing
Start free. Become a member when you're ready.
The survey and your first result cost nothing and need no account. Membership keeps your whole calendar with you.
Free
$0
- The full survey
- Your rhythm and today's guidance
- Your current cycle phase
- No account, nothing sent anywhere
Monthly
$4.99/month
- Your full 30-day calendar, day by day — printable or saved as PDF
- Your plan saved to your account and waiting on every device
- Update your period date any time and the whole calendar realigns
- Message Samantha directly from inside your member area
Yearly
$49.99/year
Two months free
- Everything in monthly
- One simple yearly payment
- 30-Day Fasting Journal included free (a $9.99 value)
Cancel anytime, full refund in the first 7 days. Just want the journal? The 30-Day Fasting Journal is $7.99 one-time (usually $9.99) — add it to a monthly membership at checkout.
You'll message Samantha herself
Samantha Linden, MEd, DBA, built this tool and reads every member message personally — about your plan, your fasting windows, or fitting the calendar around real life. She answers every message herself, so please allow up to 48 hours for a reply.
Your data, plainly
The free tool stores nothing — your answers never leave your browser. As a member, we store your survey answers, your plan, and your journal entries in your account so they're waiting on every device. We never sell your data, and you can delete your account whenever you like.