Cycle Cipher vs Endurance Debrief

Cycle Cipher is a private, local-first period and cycle tracker. Log the details that matter to you without creating an account, seeing ads, or sending health entries to the developer. TRACK YOUR CYCLE - Record period flow and daily notes. - Log symptoms, moods, sexual activity, and basal body temperature. - Review your history in a clear calendar. - See cycle and period-length summaries based on the data you enter. PRIVATE BY DESIGN - Health records stay in the app's local container. - Optional PIN and device authentication protect access. - No advertising, analytics, accounts, or developer-operated cloud sync. - Create password-encrypted backups and CSV copies when you choose. REMINDERS ON YOUR TERMS Choose optional on-device reminders and manage notification permission at any time. Cycle estimates are based only on past entries and may be early, late, or unavailable. SENSITIVE HEALTH HISTORY Privately record pregnancy tests, pregnancy outcomes, provider visits, contraception changes, and related dates. These entries are personal records, not medical guidance. FREE FOR EVERYONE Every feature is available for free. Optional, repeatable tips are processed by Apple and never unlock features or change app behavior. Cycle Cipher does not diagnose conditions, provide treatment, or replace a qualified healthcare professional. Fertility and ovulation estimates are approximate and must not be used as contraception. Seek urgent medical help when you are concerned about severe or emergency symptoms.

Endurance Debrief answers two questions after every workout: Was that session any good? And how fit am I right now? Import your rides, runs and swims as FIT, TCX or GPX files — or automatically from Apple Health — and get the analysis usually reserved for big training platforms. Entirely on your iPhone. No account, no subscription, no cloud. YOUR WORKOUT, HONESTLY ANALYZED • Training Stress Score (TSS) — from power, pace or heart rate, depending on your data • Normalized Power, Intensity Factor and aerobic decoupling • Zone distribution: power, pace or heart-rate zones • Coach feedback in plain sentences: what your numbers mean — generated fully on device YOUR FITNESS AT A GLANCE • Form curve based on the proven CTL/ATL/TSB model: fitness, fatigue, form • Today view with a simple status: build, recover, or race-ready • Weekly summary: sessions, TSS and fitness trend for the current week • Home Screen widget with today's form • History as a list or calendar, filtered by sport • VO₂max trend estimated from your workouts 100% PRIVATE • All calculations run locally on your iPhone • No cloud, no account, no ads, no tracking • Privacy label: "Data Not Collected" FOR CYCLISTS, RUNNERS AND SWIMMERS • FIT, TCX and GPX files from bike computers and sports watches • Apple Health import for workouts recorded with Apple Watch • Manual entries for sessions without a file — your form curve stays complete • Profile with FTP, threshold pace, LTHR and heart-rate zones • Fully localized in English and German • Lock Screen widget: your form at a glance, without opening the app • Siri and Shortcuts: "What is my form" gets answered right away Download once, done. No subscription. Note: VO₂max and form values are training estimates, not medical statements.