Hormone-Smart Rhythm

An honest comparison

Hormone-Smart Rhythm vs FastingBestie

Both tools believe fasting should follow your cycle, not fight it. Here's where we genuinely differ, so you can pick what fits you.

Hormone-Smart RhythmFastingBestie
Trying it outToday's fasting range and cycle phase free, no account — your answers never leave your browserFree trial before any price is shown
Price$4.99/month or $49.99/year (two months free), shown up frontSubscription; price not shown on public pages
Cycles coveredRegular, irregular, and no periods right now (post-menopause, continuous contraception, or paused)Aimed at women with a current cycle
What you getMembers get a 30-day calendar with a fasting range and nourishment focus per day — printable and saveable as PDFApp-based cycle-synced fasting guidance
Human supportMessage Samantha directly; she answers every message herself within 48 hoursCommunity and app support

Based on what's publicly visible on each site. If FastingBestie changes something, tell us and we'll update this page.

Common questions

Is Hormone-Smart Rhythm really free to try?

Yes. The survey and your first result — today's fasting range and your cycle phase — need no account and no card. Membership adds the full 30-day printable calendar, saving across devices, automatic realignment, and messaging with Samantha.

Which is better if my periods are irregular or paused?

Hormone-Smart Rhythm was built for exactly that. The survey's first question offers regular, irregular, and 'no periods right now', and the calendar anchors to where your body actually is rather than assuming a textbook 28-day cycle.

Can I print my fasting calendar?

Yes — the member calendar in Hormone-Smart Rhythm can be printed or saved as a PDF, so you don't have to log in each day to remember your window.