Comparison

SleepStack vs DreamSync

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

DreamSync

This app offers personalized sleep coaching and tracking powered by on-device AI. It includes a full 12-week CBT-I program for insomnia and a smart alarm to wake you gently. All data is processed and stored locally for absolute privacy.

Highlights
  • AI sleep coach with personalized guidance
  • 12-week clinical CBT-I program
  • Intelligent sleep tracking with stage analysis
  • Smart alarm for gentle wake-ups
  • Behavior correlation insights
  • Absolute privacy with local data storage
  • Offline functionality
Features
Read full description

DreamSync is the sleep optimization app that puts your privacy first. Everything runs on your phone — no cloud servers, no accounts, no data ever leaves your device. MEET LUNA — YOUR AI SLEEP COACH Luna is your personal sleep scientist, available 24/7. Ask her anything about sleep, get personalized bedtime recommendations, and receive morning insights about your night — all powered by on-device AI. CLINICAL CBT-I PROGRAM The only sleep app with a full 12-week Cognitive Behavioral Therapy for Insomnia program built in. CBT-I is the gold-standard treatment recommended by the American Academy of Sleep Medicine, shown to improve sleep in up to 80% of people who complete it — without medication. INTELLIGENT SLEEP TRACKING Place your phone on your nightstand and DreamSync tracks your sleep using built-in sensors. Get detailed breakdowns of your sleep stages, efficiency score, and disturbance events including snoring detection. SMART ALARM Wake up feeling refreshed. DreamSync's smart alarm detects your lightest sleep phase and wakes you within your preferred window — no more jarring alarms mid-deep-sleep. BEHAVIOR CORRELATIONS Discover how caffeine, exercise, screen time, stress, and alcohol affect YOUR sleep with personalized correlation insights based on your tracked data. ABSOLUTE PRIVACY DreamSync has no servers. We couldn't see your data even if we wanted to. All your sleep data is stored locally on your device in simple files you can inspect, export, or delete at any time. No account required. No tracking. No ads. Ever. KEY FEATURES: - AI sleep coach with personalized daily guidance - 12-week clinical CBT-I program - Sleep tracking with sleep stage analysis - Smart alarm with gentle wake-up - Sleep score and efficiency tracking - Snoring and disturbance detection - Behavior logging and correlation insights - Sleep trends (7, 30, 90-day views) - Pre-bed journaling with AI reflection - Partner alarm sync via Bluetooth - Data export for healthcare providers - Beautiful dark-mode interface - Works completely offline - No account or sign-up required

Screenshots

SleepStack4 screens
DreamSync4 screens

Verdict

The call

The clearest difference is rating: DreamSync at 5.0 against SleepStack's 4.0. DreamSync also leads on in-app purchases (none vs 3) and device support (3 vs 1). SleepStack's advantage is ratings volume (4 vs 1). On price, 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. DreamSync asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

DreamSync holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

SleepStack ships an update every 10 days, DreamSync every 6 days. The most recent releases landed on October 20, 2026 and October 16, 2026 respectively.

Scorecard6 real differences · 3 level
SleepStack versus DreamSync: the parameters behind the verdict, then further details
ParameterSleepStackDreamSync
PriceFreeFree
Rating4.0 (4 ratings)5.0 (1 ratings) — better
Number of ratings4 — better1
Update frequencyEvery 10 daysEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size49 MB34 MB
Age rating4+4+
DeveloperNUNE LLCGetDeAddicted LLC

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
None

DreamSync

No in-app purchases

Questions

Is SleepStack free?
SleepStack is free to download, with in-app purchases available.
Is DreamSync free?
DreamSync is free to download, with no in-app purchases.
Which has better reviews, SleepStack or DreamSync?
DreamSync is rated higher. SleepStack averages 4.0 out of 5 from 4 ratings, while DreamSync averages 5.0 from 1 ratings.
Do SleepStack or DreamSync have ads?
Neither SleepStack nor DreamSync shows ads.
Which is updated more often, SleepStack or DreamSync?
SleepStack ships an update every 10 days, and DreamSync every 6 days. Most recently, SleepStack was updated on October 20, 2026 and DreamSync on October 16, 2026.

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