Comparison

SleepStack vs Morphi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SleepStack

This app helps you build better sleep habits with guided routines, sleep tracking, and relaxation techniques. It monitors your sleep environment and provides feedback to improve your rest and morning recovery. Protect your sleep from phone distractions with app blocking features.

Highlights
  • Personalized bedtime routine builder
  • Sleep Score and insights tracking
  • Guided relaxation techniques
  • App blocking for sleep protection
  • Sleep environment monitoring
  • Morning energy and recovery feedback
  • Gamified sleep habit tracking
Features
Read full description

Build a better sleep routine with SleepStack a guided sleep tracker, Sleep Score coach, and bedtime routine app designed to help you fall asleep, stay consistent, and wake up more recovered. Most sleep apps only tell you what happened last night. SleepStack helps you understand your sleep, improve your routine, and protect the habits that make better rest possible. Whether you want to fix your sleep schedule, stop late-night scrolling, fall asleep faster, improve deep sleep, or wake up with more energy, SleepStack gives you a clear protocol to follow. BUILD YOUR SLEEP ROUTINE Create a bedtime routine that fits your life. SleepStack helps you set a personalized sleep window, follow a pre-sleep checklist, and build repeatable habits around your evening routine, wake time, and recovery goals. Choose guided sleep protocols for: • Better sleep consistency • Wind-down and relaxation • Circadian rhythm support • Recovery and deep sleep • Phone-free bedtime discipline • Morning energy and routine tracking Every protocol gives you structure, not guesswork. TRACK YOUR SLEEP SCORE Understand how well you slept — and why. SleepStack turns your sleep data into a simple nightly Sleep Score, helping you see what is improving your sleep and what may be disrupting it. Track key sleep insights including: • Sleep duration • Sleep efficiency • Sleep regularity • Deep sleep • REM sleep • HRV • Respiratory rate • Phone pickups • Sleep schedule consistency • Morning check-ins Connect with Apple Health to bring your sleep stages, HRV, and respiratory data into one clear sleep dashboard. FALL ASLEEP WITH GUIDED TECHNIQUES For nights when your mind will not slow down, SleepStack gives you guided relaxation tools built for bedtime. Try techniques such as: • 4-7-8 breathing • Box breathing • Physiological sigh • Progressive muscle relaxation • Cognitive Shuffle • Military Method PMR Each technique includes step-by-step guidance, timed visuals, and audio cues so you can follow along without overthinking. PROTECT YOUR SLEEP FROM YOUR PHONE Late-night scrolling can destroy a good sleep routine. SleepStack’s Shield feature helps you protect your sleep window by blocking distracting apps during bedtime hours. Track bypass attempts, unlocks, and phone pickups so you can see how your screen habits affect your sleep discipline. Put the phone down. Protect your routine. Sleep better. MONITOR YOUR SLEEP ENVIRONMENT Your bedroom matters. SleepStack’s Sanctuary feature monitors your sleep environment and helps you identify noise spikes that may interrupt your rest. Use real-time sound feedback to create a quieter, more sleep-friendly room. WAKE UP WITH BETTER FEEDBACK SleepStack connects how you went to bed with how you woke up. Log your morning energy, glow, puffiness, and recovery so you can understand which routines actually help you feel better the next day. STAY CONSISTENT WITH GAMIFIED SLEEP HABITS Better sleep is built night by night. SleepStack includes achievements, streaks, challenges, and habit tracking to help you stay motivated. Build consistency across your bedtime routine, sleep duration, morning check-ins, environment, and phone discipline. WHO SLEEPSTACK IS FOR SleepStack is built for people who want more than a basic sleep tracker. Use SleepStack if you want to: • Build a better bedtime routine • Improve your sleep schedule • Track your Sleep Score • Fall asleep with guided techniques • Reduce phone use at night • Monitor deep sleep, REM, HRV, and recovery • Create a consistent wind-down routine • Wake up with more energy • Understand what helps and hurts your sleep SleepStack gives you the tools, structure, and feedback loop to make better sleep feel practical. Your better sleep routine starts tonight. Terms of Service: https://sleepmaxertermsofuse.hrdb8phm6h.workers.dev Privacy Policy: https://sleepmaxerprivacypolicy.hrdb8phm6h.workers.dev

About

Morphi

This AI-powered coach learns your unique sleep patterns and stress triggers to create personalized strategies for better rest. It offers guided routines, morning debriefs, and smart alarms to help you wake up feeling refreshed.

Highlights
  • AI-driven personalized sleep plans
  • Guided evening wind-down routines
  • Morning debriefs with sleep insights
  • Sleep stage and quality tracking
  • Smart alarm for rested wake-ups
  • Stress and habit analysis
Read full description

You've tried everything — melatonin, white noise, blue-light glasses. You still wake up exhausted. Morphi is different. It's an AI sleep coach that learns how YOUR mind works at night and personally coaches you to sleep better — starting tonight. Most sleep apps track your sleep and hand you a chart. That's like handing someone a scale and telling them to lose weight. Morphi goes further. It asks about your stress, your habits, your schedule — then builds a coaching plan that adapts to you every single night. HOW MORPHI WORKS When you first open Morphi, you'll answer a short quiz about your sleep struggles, stress levels, and what you've already tried. In under 2 minutes, Morphi generates your personal sleep plan — not generic tips, but a specific strategy built for your life. Every evening, your AI coach guides you through your wind-down routine. Every morning, you get a personalized debrief that explains what happened overnight and what to adjust. Over time, Morphi learns your patterns and refines your plan automatically. WHAT MAKES MORPHI DIFFERENT - AI that learns you — Morphi adapts its coaching based on your real patterns, not generic averages. Your plan gets smarter every night. - Evening coaching — Guided wind-down routines tailored to your stress level, schedule, and sleep goals. Not just "put your phone down" — real, actionable steps. - Morning debriefs — Wake up to insights about your night. What worked, what didn't, and what to try tonight. - Sleep tracking — Track your sleep stages, duration, and quality without a wearable. Just your phone on the nightstand. - Smart alarm — Wake up during your lightest sleep phase so you actually feel rested, not groggy. BUILT FOR PEOPLE WHO CAN'T TURN THEIR BRAIN OFF If your problem isn't falling asleep — it's that your mind won't stop — Morphi was built for you. Stress, anxiety, overthinking, work pressure — these are the real sleep killers, and they need a real solution, not another playlist. Morphi's AI coaching focuses on what's keeping you up: stress patterns, racing thoughts, and an overstimulated nervous system. Through personalized evening routines, breathing exercises, and adaptive recommendations, Morphi helps you train your brain to let go at night. YOUR SLEEP, YOUR DATA, YOUR PRIVACY Your sleep data stays on your device and is never sold. Morphi integrates with Apple Health so your sleep data works with the rest of your health ecosystem. We believe your most personal data deserves the most serious protection. SUBSCRIPTION INFORMATION Morphi offers a subscription for full access to AI coaching, personalized plans, detailed analytics, and all premium features. Payment is charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your Apple ID account settings. Terms of Use: https://www.morphisleep.com/terms Privacy Policy: https://www.morphisleep.com/privacy

Screenshots

SleepStack4 screens
Morphi4 screens

Verdict

The call

The clearest difference is rating: Morphi at 5.0 against SleepStack's 4.0. Morphi also leads on device support (3 vs 1) and iOS requirement (14.0 vs 18.0). On price, ratings volume, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SleepStack sells 3 in-app purchases, starting at $4.99 per 7 days and Morphi sells 2 in-app purchases, starting at $13.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Morphi holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

UpkeepUpdate frequency

SleepStack ships an update every 10 days, Morphi weekly. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 7 level
SleepStack versus Morphi: the parameters behind the verdict, then further details
ParameterSleepStackMorphi
PriceFreeFree
Rating4.0 (4 ratings)5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings4 — better2
Update frequencyEvery 10 daysWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.014.0 — better
Further details — not scored
Size49 MB109 MB
Age rating4+12+
DeveloperNUNE LLCMenoua Dergaloost

Customer experience

SleepStack

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%

Morphi

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

SleepStack

Subscriptions3
  • SleepStack Pro weekly$4.997 Days
  • SleepStack Pro Yearly$29.991 Year
  • SleepStack Yearly1 Year trial$59.991 Year
2 purchases

Morphi

Subscriptions2
  • Morphi Premium (Monthly)$13.991 Month
  • Morphi Premium (Annual)$59.991 Year

Questions

Is SleepStack free?
SleepStack is free to download, with in-app purchases available.
Is Morphi free?
Morphi is free to download, with in-app purchases available.
Which has better reviews, SleepStack or Morphi?
Morphi is rated higher. SleepStack averages 4.0 out of 5 from 4 ratings, while Morphi averages 5.0 from 2 ratings.
Do SleepStack or Morphi have ads?
Neither SleepStack nor Morphi shows ads.
Which is updated more often, SleepStack or Morphi?
SleepStack ships an update every 10 days, and Morphi weekly. Most recently, SleepStack was updated on October 3, 2026 and Morphi on September 29, 2026.

Other comparisons