Sleke vs SleepStack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sleke
This smart alarm helps you wake up feeling refreshed by identifying the optimal moment within your sleep cycle. Simply set your desired wake-up window or number of sleep cycles, and it adjusts to your body's natural rhythm for smoother mornings.
- Smart alarm based on sleep cycles
- Customizable wake-up time
- Adjusts to body's rhythm
- Wake up without grogginess
- Simple interface
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Going to bed now? Sleke is a sleep cycle calculator and smart alarm that tells you when to wake up. Sleep moves in cycles of about 90 minutes. Waking at the end of a cycle, in light sleep, feels very different from being pulled out of deep sleep. Sleke times your alarm to those moments, so you wake up clearer and less groggy. HOW IT WORKS • Open Sleke at bedtime. It adds the time you usually take to fall asleep and shows wake-up times for 4, 5 or 6 full cycles. • Pick a time, with the best fit marked, and tap Start sleeping. • Lock your phone and sleep. A real iOS alarm rings at the end of your last cycle, even when Sleke is closed. Snooze, or slide to stop. NEW IN SLEKE 2.0 • Snore clips. Sleke listens on your iPhone while you sleep and saves short clips when it hears snoring. Play them back in the morning and see when each one happened on the night's timeline. • Your week at a glance. A chart of every night: when you went to bed, when you woke, and whether you woke on time, stopped early or slept past the alarm. • A new look. A deep night-indigo design and a new app icon. SEE HOW EVERY NIGHT WENT • Average time asleep and how many nights you woke on time • Each night drawn as its sleep cycles, with snoring marked • A short summary of how the night went POWER NAPS Start a 20 to 60 minute power nap with the nap timer, or just say "Start nap in Sleke". SET IT TO HOW YOU SLEEP • How long you take to fall asleep • How long your cycles last and how many you aim for • Alarm sound and snooze length HANDS-FREE WITH SIRI Say "Start sleep session in Sleke", "Start nap in Sleke" or "Cancel sleep session in Sleke", or add them to Shortcuts. SLEKE PREMIUM Starting sleep sessions and naps needs Sleke Premium. Try it free for 1 week, then $0.99 a month. Your subscription includes every feature, from snore clips to iCloud sync across your Apple devices. Sleke Premium is a monthly auto-renewing subscription. Payment is charged to your Apple Account when you confirm the purchase. It renews automatically unless you turn off auto-renew at least 24 hours before the end of the current period. You can manage or cancel it in your App Store account settings. Terms of Use: https://sleke.app/terms Privacy Policy: https://sleke.app/privacy Sleke is not a medical device and does not diagnose sleep conditions.
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.
- 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
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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
Screenshots
Verdict
The clearest difference is update cadence: Sleke at every 3 days against SleepStack's every 10 days. SleepStack's advantage is iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases and monetization model 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. Sleke sells 3 in-app purchases, starting at $0.99 per month and SleepStack sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Sleke ships an update every 3 days, SleepStack every 10 days. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.
| Parameter | Sleke | SleepStack |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 4 — better |
| Update frequency | Every 3 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 26.0 | 18.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 49 MB |
| Age rating | 12+ | 4+ |
| Developer | Dasun Tharanga | NUNE LLC |
Customer experience
Sleke
SleepStack
In-app purchases
Sleke
- Sleke Premium Monthly7 Days trial$0.991 Month
- Sleke Premium$5.99
- Sleke Premium Family$9.99
SleepStack
- SleepStack Pro weekly$4.997 Days
- SleepStack Pro Yearly$29.991 Year
- SleepStack Yearly1 Year trial$59.991 Year









