Protocol Zero vs DeepSleep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Protocol Zero
This app provides a personalized daily plan to improve sleep quality, incorporating science-backed techniques and sleep sounds. It guides users through setting consistent wake times, managing caffeine intake, and activating wind-down routines for better rest.
- Personalized daily sleep plan
- Sleep sounds (white noise, rain)
- Consistent wake time guidance
- Caffeine cutoff reminders
- Wind-down mode
- CBT-I techniques
Read full descriptionHide full description
Protocol Zero is the first Active Sleep Improvement based on Research It’s a system that gives you a clear, personalized daily plan so you know exactly what to do to sleep better starting tonight. New: Protocol Zero now includes sleep sounds you can play at night, including white noise, brown noise, rain, and calming audio. Use them alongside your personalized nightly routine to unwind faster and fall asleep more easily. YOUR PERSONAL SLEEP COACH Unlike most apps that only track your sleep, Protocol Zero guides you through a daily schedule designed to reset your body clock and improve your sleep quality. Each day, you get specific actions that make a real difference: - Set a consistent wake time and get morning light exposure to reset your internal clock and help you feel alert during the day - Follow precise caffeine cutoffs so late-day coffee or tea never interferes with your deep sleep - Activate wind-down mode in the evening, which blocks distracting apps and helps your mind and body relax before bed - Practice science-backed techniques from Cognitive Behavioral Therapy for Insomnia (CBT-I), proven to help you fall asleep faster and stay asleep longer HOW IT WORKS Your body depends on a 24-hour internal clock to regulate sleep. Protocol Zero anchors your day around two key signals: when you wake up and when you get morning light. The app then schedules your caffeine, meals, exercise, and wind-down activities into optimal time windows. This structure helps you build habits that make you naturally tired at bedtime, so you fall asleep more easily and wake up refreshed. No more lying awake wondering what went wrong. No more generic sleep tips that never stick. Protocol Zero gives you a clear, automated plan that builds lasting habits for deep, restorative sleep. SIMPLE, SCIENCE-BACKED, AND ACTIONABLE Protocol Zero combines the most effective techniques from CBT-I the gold standard for sleep improvement with modern behavioral science. Research shows that tracking your habits and making targeted changes leads to real, lasting results. We make these techniques simple to follow, so you can start seeing improvements right away. WHO IT’S FOR Protocol Zero is designed for healthy adults who want to optimize their sleep. It is an educational tool, not a medical device, and is not intended to diagnose or treat sleep disorders. If you suspect you have insomnia, sleep apnea, or another medical condition, consult a physician. Stop guessing about your sleep. Start following a clear plan and experience better rest tonight with Protocol Zero. *in-app subscription is required to use the app EULA: http://www.apple.com/legal/itunes/appstore/dev/stdeula
DeepSleep
This app offers a science-inspired approach to improving sleep quality. It combines soothing sounds, guided meditations, and bedtime stories with intelligent sleep tracking to help users fall asleep faster, sleep deeper, and wake up refreshed.
- Calming sleep sounds and ambient audio
- Guided meditation sessions for relaxation
- Soothing bedtime stories for adults
- Intelligent sleep cycle tracking and insights
- Nightly routine building with reminders
- Progress tracking with streaks and goals
Read full descriptionHide full description
DeepSleep helps you fall asleep faster, sleep deeper, and wake up restored. Discover your sleep type, quiet a racing mind with guided wind-downs, and understand your nights with simple insights. DISCOVER YOUR CHRONOTYPE Take the chronotype quiz to find out whether you're a Bear, Lion, Wolf, or Dolphin. Your type helps provide personalized bedtime recommendations. DRIFT: YOUR NIGHTLY WIND-DOWN Drift guides you from a busy day into rest with simple wind-down routines that help settle your space, quiet your mind, and relax your body. SLEEP INSIGHTS See clear nightly summaries and recovery insights. Track consistency, build gentle streaks, and see how your rest changes over time. CALMING SOUNDS & SOUNDSCAPES Listen to sleep sounds, ambient soundscapes, and white, brown, or pink noise. Sounds include ocean waves, soft rain, and other relaxing options. GUIDED MEDITATION Short, calming meditations help release tension and quiet your thoughts at bedtime. SLEEP STORIES FOR ADULTS Relax with calming bedtime stories that help take your mind away from stress and toward sleep. DAILY CHECK-INS & REMINDERS Log your morning mood, understand habits affecting your rest, and set custom reminders. WHY DEEPSLEEP • Chronotype quiz for personalized rest • Drift guided wind-down routines • Nightly sleep insights & streaks • Sleep sounds, color noise & soundscapes • Guided meditation & sleep stories • Daily check-ins & reminders • Minimal design focused on calm Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://deepsleepai.io/pages/privacy-policy.html Terms of Service: https://deepsleepai.io/pages/terms-of-service.html
Screenshots
Verdict
The clearest difference is monetization model: DeepSleep at freemium against Protocol Zero's subscription. DeepSleep also leads on ads (none vs shown) and rating (5.0 vs 4.7). Protocol Zero's advantage is ratings volume (182 vs 1). On price, update cadence and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Protocol Zero sells 5 in-app purchases, starting at $12.99 per month and DeepSleep sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
DeepSleep holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Protocol Zero has 182 ratings behind it against 1, so its average is the more settled of the two.
Protocol Zero ships an update every 4 days, DeepSleep every 5 days. Both last shipped on October 1, 2026.
| Parameter | Protocol Zero | DeepSleep |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (182 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 182 — better | 1 |
| Update frequency | Every 4 days — better | Every 5 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Freemium — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 123 MB | 104 MB |
| Age rating | 12+ | 4+ |
| Developer | HumanOS LLC | Muhammad Umer Shah |
Customer experience
Protocol Zero
DeepSleep
In-app purchases
Protocol Zero
- Protocol Zero Monthly$12.991 Month
- Protocol Zero Annual Starter$19.991 Year
- Protocol Zero Annual$29.991 Year
Show 2 moreShow fewer
- Protocol Zero Pro$39.991 Year
- Protocol Zero Pro$59.991 Year
DeepSleep
- Deep Sleep Premium Monthly7 Days trial$8.991 Month
- Yearly Pro14 Days trial$39.991 Year
Questions
Is Protocol Zero free?
Is DeepSleep free?
Which has better reviews, Protocol Zero or DeepSleep?
Do Protocol Zero or DeepSleep have ads?
Which is updated more often, Protocol Zero or DeepSleep?
Other comparisons















