Steady vs ShiftRhythm

Steady is built for shift workers, not 9-to-5. NEW IN 1.8 • A 3-minute reaction test before you drive home, compared with your own rested speed. A fatigue check, not a driving test. • Switching to nights or back to days: Steady plans the days around it, with bedtimes, light and a nap before the first night. • Your next 24 hours on one line: work, sleep, naps and your caffeine cutoff. • iPhone Duo: stand it half open and Steady becomes a nightstand. WHAT MAKES STEADY DIFFERENT • Drive home risk alert: warns you when fatigue makes the drive too risky. 17 hours awake is roughly a 0.05% BAC. Always free. • Roster import from a photo: point your camera at the schedule on the wall and confirm every day before it's saved. • An alertness curve that shows when you'll crash, plus the best windows for exercise, meals and light. • A sleep score measured against your own rotation, not a 9-to-5 clock. • Sleep debt and a payback plan built around your real rota. • Smart wake alarm: wakes you in light sleep within a window you choose, backed by a real system alarm on iOS 26 and later. • 290 coaching tips grounded in AASM, NIOSH and chronobiology research. • English and Spanish, written natively in both. • Private and on-device: no accounts, no servers, no tracking. For DuPont, 4-on-4-off, Panama, 12-hour rotations, fixed nights and on-call: healthcare, manufacturing, public safety, hospitality, transit and logistics. FREE • Drive home risk alert, reaction test and night-switch planner • Today's fatigue score and your next 24 hours • Shift templates, single-day changes and Calendar roster import • Sleep log with Apple Health sync (last 7 days) • Bedtime and wake check-ins • Wind Down: brown noise, pink noise and 4-7-8 breathing • Caffeine, alcohol, exercise and meal logging • Bedtime and shift-day reminders • Sleep Focus filter, Live Activity and a Control Center nap button • iPhone Duo nightstand, Apple Watch app, Siri and Shortcuts • A starter set of coaching tips STEADY PRO Free for 7 days, then $3.99 a month or $24.99 a year. • Roster import from a photo • Alertness curve and light plan • Fatigue score breakdown and 7-day forecast • Sleep debt ledger and shift-aware sleep score • Sleep stages, overnight vitals and Discoveries • Smart wake alarm and nap planner • Caffeine cutoff and light reminders • Custom rotations and the chronotype quiz • Daily briefing, weekly review and Ask Steady, on-device • Widgets and Watch complications • Full history, long-range stats and exports • The full coaching library Works on iPhone, iPad, Apple Watch and the iPhone Duo inner display, with two pages split on the fold. Steady is not a medical device. Always consult a licensed clinician for medical advice. SUBSCRIPTION TERMS Steady Pro is an auto-renewing subscription, $3.99 a month or $24.99 a year. Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://jcmobileappstudio.com/apps/steady/privacy/

Night shifts flipped your sleep? Enter your roster and ShiftRhythm tells you when to sleep, when to nap, and when to seek or avoid light — today. WHAT IT DOES • 24-hour body-clock dial — see your estimated melatonin onset (DLMO) and biological night (CBTmin) at a glance • Light, nap & caffeine guidance — timed to your circadian rhythm and updated as your shifts change • Sleep score, sleep debt & recovery — last night's sleep plus HRV and resting heart rate from Apple Watch, telling you whether to push or recover • Presets that match real rosters — Panama 2-2-3 schedule (day/night), Pitman, DuPont, Fire 48/96, 12-hour rotating shifts, plus Korean and Japanese patterns. Or build your own custom rotation • Melatonin timing card (optional) — an informational window based on your estimated body clock. Not a recommendation to take melatonin; talk to your doctor or pharmacist first BUILT FOR SHIFT WORKERS Whether you're a night shift nurse, a firefighter on 48/96, a plant operator on a DuPont rotation, or a driver on a rotating roster — ShiftRhythm adapts to your schedule, not the other way around. • Tap any calendar day to correct that day's shift • Works from your schedule alone — no Apple Watch required • Apple Watch app and widgets included; available in English, Spanish, Korean, and Japanese PRIVATE BY DESIGN • No account. No server. Your data stays on your phone. • All circadian math runs on-device — health data never leaves your iPhone • No ads, no tracking PRICING • 30-day free trial — full features, no account needed • Then Monthly or Annual (Annual saves vs. monthly), or a one-time Lifetime purchase if you'd rather not subscribe • Subscriptions auto-renew; cancel anytime in Settings > Apple Account > Subscriptions Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://yoonspower.github.io/shiftrhythm/privacy.html ShiftRhythm is for general wellness and reference only. It is not a medical device and does not diagnose, treat, or monitor any medical condition. Values shown are estimates and may be inaccurate. Consult a professional for health concerns.