Truly Simple Cycle

A private period tracker that stays on your device. One-tap logging, honest predictions, and a free summary for your doctor. No account, no ads, no subscription.

Truly Simple Cycle is a calm, private period tracker. Log your period in one tap, see when the next one is likely, and keep a quiet record of how each day went. Your cycle stays on your iPhone or iPad (and in Apple Health, if you choose). No account, no cloud, no ads, no subscription.

LOG IN A TAP • “Period started” and “Period ended” right on the home screen • Flow, 12 common symptoms, 8 moods, tags, and notes for any day • A clear calendar: period days filled, predicted days outlined, logged days marked with a dot

PREDICTIONS THAT ADMIT WHAT THEY DON’T KNOW • Based on the median of your last six cycles, so one unusual month doesn’t throw them off • Shown as a range when your cycles vary, with a plain note when predictions are rough

NOTICE YOUR PATTERN • Rate each day from Very hard to Great in one tap • After two cycles, see whether harder days tend to start before your period, and when they ease • An optional heads-up before those days • On a very hard day, quiet links to information about premenstrual mood changes and to crisis lines

FOR YOUR DOCTOR • A free appointment summary PDF: your last six cycles, typical lengths with ranges, symptoms and moods, daily ratings around each period, and notes

PRIVATE BY DESIGN • Your data stays on your device, and the developer never sees it • Face ID, Touch ID, or passcode lock, and a blank app-switcher preview • Reminders that never show cycle details • Optional two-way Apple Health sync for periods and spotting, with your daily rating saved as mood

YOURS TO KEEP • Export a CSV or a full JSON backup, and restore any time • Bring your history in from Apple Health or a spreadsheet • Delete everything with one button

QUICK TO REACH • A Log Today control for Control Center, the Lock Screen, or the Action button, plus a Siri shortcut • Built for iPhone and iPad, with VoiceOver, Dynamic Type, and dark mode

PAY ONCE Every feature is free, including export, Apple Health, the lock, reminders, and the appointment summary, with two custom symptoms, moods, or tags. Pro is a one-time purchase for unlimited custom items, shared with your family. No subscription, ever.

Truly Simple Cycle isn’t a medical device, and its predictions aren’t for preventing pregnancy. Talk with a doctor about anything that worries you.

Made by one person at Truly Simple Tools. Questions or ideas: trulysimpletools.com/contact