# Sleep Phase Tracker — DSPS Sleep Protocol Tracker > App to follow doctor's delayed sleep phase protocol for shifting body clock. (iPhone/iPad app by MAXWELL JEREMIAH DROWN.) - Source: https://appshunter.io/ios/app/sleep-phase-tracker/id6764618216 (this page in markdown: same URL + `.md`) - Developer: [MAXWELL JEREMIAH DROWN](https://appshunter.io/developer/1895851818) - Category: Health & Fitness, Medical - Price: $4.99 - Rating: 5.00/5 from 1 App Store ratings - Age rating: 17+ - Requires: iOS 15.1 · 31 MB - Languages: American English - Released: 2026-05-13 - Data updated: 2026-08-03 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/sleep-phase-tracker/id6764618216/reviews.md ## What is Sleep Phase Tracker? SleepPT helps you follow your doctor's delayed sleep phase protocol — the gradual, week-by-week process of shifting your body clock earlier. Set up your personalized protocol once, then let the app guide you every night with your current bedtime, wake time, melatonin reminder, and light therapy cues. Log each morning, track your streak, and advance through your schedule at your own pace. FEATURES - Tonight's plan — bedtime, wake time, melatonin, and dim-lights times at a glance - Daily sleep log — track actual times, medications, sleep quality, and notes - Streak tracking — 7 consecutive on-time mornings earns a week advance - Progress view — see your full protocol at a glance, week by week - Missed night support — gentle, non-judgmental flow for nights you miss - Customizable protocol — adjust start/goal times and advance step if your doctor prescribed different values - Dark mode support - No account required — all data stays on your device Built for people managing Delayed Sleep Phase Syndrome (DSPS) with a doctor-prescribed chronotherapy protocol. ## Key features - Personalized protocol setup - Nightly bedtime and wake time guidance - Melatonin and light therapy reminders - Daily sleep logging - Streak tracking for progress - Customizable protocol adjustments ## Frequently asked questions about Sleep Phase Tracker ### What is the Sleep Phase Tracker app? Sleep Phase Tracker is an application designed to help users adhere to a doctor-prescribed Delayed Sleep Phase Syndrome (DSPS) protocol. It guides users through gradually shifting their sleep schedule earlier. ### How does Sleep Phase Tracker help with DSPS? The app provides personalized nightly guidance on bedtime, wake time, melatonin intake, and light therapy. It also allows for daily sleep logging and tracks progress through a streak system to advance the protocol. ### Is Sleep Phase Tracker free to use? No, Sleep Phase Tracker is a paid application. It is available for purchase at $4.99. ### Does Sleep Phase Tracker have ads? No, Sleep Phase Tracker does not contain advertisements. The app is ad-free. ### What devices does Sleep Phase Tracker support? Sleep Phase Tracker is currently supported on iPhone and iPod devices. ### How often is Sleep Phase Tracker updated? The latest version, 1.4.0, was released on June 19, 2026. Updates are provided to ensure the app functions correctly and stays current. ### Is my sleep data private with Sleep Phase Tracker? Yes, Sleep Phase Tracker prioritizes user privacy. No account is required to use the app, and all your sleep data remains on your device. ### Can I customize the sleep protocol in Sleep Phase Tracker? Yes, the protocol is customizable. You can adjust start/goal times and the advance step if your doctor has prescribed different values for your treatment. ## Version history (last 5 releases) ### 2.1.6 — 2026-07-29 This is a big one — Sleep Phase Tracker has been rebuilt from the ground up since your last update. WHAT'S NEW • Redesigned interface with clearer, color-coded cards and bolder buttons throughout • "Steps" are now "Phases" — track your progress with a configurable number of phases tailored to your protocol • Streaks: track your consecutive on-time nights toward your next phase, with an editable target • New sleep-window chart shows your bed-to-wake pattern at a glance, plus an overlay view to spot trends across nights • Clock-aware reminders — the app now knows if you're still in your overnight window, so you won't get a "did you sleep?" prompt while you're still up • Strict/Lenient on-time tolerance toggle to match how forgiving you want your schedule to be • Simplified pause, resume, and restart — one clear flow, and nothing is ever deleted • Clearer progress-to-goal stats so you can see exactly how close you are • A future-dated protocol start no longer takes effect early — your current schedule stays active until the date you chose • Dozens of smaller fixes and polish across every screen As always: your logs and history are never touched by any of these changes. If you're mid-protocol, everything picks up right where you left off. ### 1.5.1 — 2026-07-01 Add a Pause function. Fixed badges. ### 1.5.0 — 2026-06-26 This release adds depth to what you track each night and makes it easier to find and fill in past nights at a glance. NEW — Difficulty ratings Rate how hard it was to fall asleep and how hard it was to wake up, each on a 1–5 scale. Both are optional. Tap a selected rating again to clear it. NEW — Difficulty pattern advice After five or more consecutive nights rated as difficult, the app offers a specific, clinically-framed observation alongside your usual post-save message — so you can consider what to try rather than simply noting the pattern. NEW — Tonight's plan The Home screen now shows a single card with your bedtime, wake time, melatonin timing, bright-light cutoff, and light therapy time together. In maintenance mode, the card labels the wake time as the anchor and the bedtime as the flexible target. NEW — Light therapy reminder A new reminder on the Schedule tab fires at your wake time each morning to prompt light therapy. It follows your schedule automatically. IMPROVED — Date picker on Log Tap the date header on the Log screen to open a scrollable list of the past 90 tracked nights, color-coded so gaps are easy to spot and backfill. IMPROVED — Notes keyboard toolbar A Done button now appears above the keyboard when you edit the Notes field. No data is affected — your logs, schedule, and history are unchanged. ### 1.4.0 — 2026-06-19 This release makes logging faster and harder to get wrong, and adds a few touches that keep you oriented. NEW — Wheel time entry everywhere Set your bed time, wake time, nap length, and every schedule setting with a tap-to-open wheel — hours, minutes, and AM/PM. No more typing times by hand. NEW — Title bar on every screen Each tab now shows the app mark, the Sleep Phase Tracker name, and the screen you're on, in light and dark mode. NEW — Missed-night app-icon badge The app icon shows a small badge counting nights you haven't logged yet, so a forgotten entry doesn't quietly slip by. It clears when you catch up. IMPROVED — Impossible times are caught before they're saved If a bed-to-wake window comes out longer than 16 hours — almost always an AM/PM mix-up — the app now asks which you meant and offers the corrected time, instead of letting a 19-hour "night" distort your charts. Real short or unusual nights are always accepted without a prompt. No data is affected — your logs, schedule, and history are unchanged. ### 1.3.1 — 2026-06-16 This release fixes a display bug in the Progress tab. FIXED — Wake Time vs Target chart A night whose wake time fell on the other side of midnight from your target could appear as one oversized bar, flattening every other day and making the chart hard to read. Wake offsets are now measured the short way around the clock, so each bar reflects how far off that morning actually was. FIXED — Average wake drift The same near-midnight entries no longer skew the average drift shown on the Home screen. FIXED — Consistent late / early minute counts The "minutes late" figure on Home now matches the on-time check used elsewhere in the app, including across midnight. No data is affected. This corrects how existing entries are displayed — your logs, schedule, and history are unchanged. ## More apps by MAXWELL JEREMIAH DROWN - [CartCalc+](https://appshunter.io/ios/app/cartcalc-plus/id6768182117) - [iQuotes+](https://appshunter.io/ios/app/iquotes-plus/id6780218185) - [GutLog+](https://appshunter.io/ios/app/gutlog-plus/id6787860213) All apps by MAXWELL JEREMIAH DROWN: https://appshunter.io/developer/1895851818 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-03.*