# Sleep Time: Cycle Alarm Clock — Smart Bedtime Timer & Tracker > Smart alarm clock and sleep analysis app with cycle tracking. (iPhone/iPad app by Azumio Inc..) - Source: https://appshunter.io/ios/app/sleep-time-cycle-alarm-clock/id555564825 (this page in markdown: same URL + `.md`) - Developer: [Azumio Inc.](https://appshunter.io/developer/439290207) - Category: Health & Fitness, Lifestyle - Price: Free with in-app purchases - Rating: 4.70/5 from 5,369 App Store ratings · 1,465 written reviews indexed - Age rating: 4+ - Requires: iOS 16.0 · 165 MB - Languages: Russian, Vietnamese, American English, Arabic, Hungarian, Dutch, Greek, Danish, Hebrew, Indonesian and 21 more - Released: 2012-09-11 - Data updated: 2026-08-24 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/sleep-time-cycle-alarm-clock/id555564825/reviews.md ## What is Sleep Time? Fall asleep, stay asleep, and wake up refreshed! Sleep Time is a complete sleep tracker and smart alarm clock. Place your phone on the bed and Sleep Time analyzes your sleep cycles through the night, then wakes you during your lightest sleep within your chosen window — so you start the day rested instead of groggy. Trusted by over 35 million users, Sleep Time is an award-winning sleep app. ------------------ 5/5 “I finally understand why I wake up tired some mornings. Sleep Time showed me my sleep cycles, and the smart alarm has made my mornings so much easier — I haven’t hit snooze in weeks.” 5/5 “I’ve tried several apps that log sleep duration and stages, and the interface of Sleep Time is the best by far. It’s easy to understand and simple to use.” 5/5 “Fascinating results. It works remarkably well providing helpful information.” Featured on: TechCrunch, Mashable, Lifehacker, 148apps, eHealth, and many others. ----------------- MAIN FEATURES √ Set the alarm clock with a single gesture √ Fall asleep to soothing soundscapes and white noise √ Alarm rings even in silent mode √ Choose from 20 built-in alarm sounds √ Wake up to your favorite song from your music library √ Sleep Lab™ with light, deep, and REM sleep analysis √ Detailed daily, weekly, and monthly graphs √ Smart wake-up window for a gentler start to the day √ Full history makes night-to-night comparison easy √ Cloud backup and restore for your sleep data √ Clear, easy-to-read interface √ Apple Health integration We build Sleep Time for our users and would love your feedback. Tell us what you think so we can keep improving the app. Upgrade to Premium for unlimited soundscapes, advanced sleep insights, priority support, and an ad-free experience with an auto-renewable subscription. We offer auto-renewable subscriptions with the following terms: - Payment will be charged to your iTunes account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - No cancellation of the current subscription is allowed during active subscription period - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication - Our privacy policy and terms of use: https://www.azumio.com/page/privacypolicy Sweet Dreams, Azumio Team ## Key features - Smart alarm clock with single gesture setting - Sleep cycle analysis - Soundscapes and white noise for falling asleep - Detailed monthly and weekly sleep graphs - Apple Health integration - Instant Heart Rate integration - Cloud backup and restore ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Premium | $4.99 | per month | | Premium | $29.99 | per year | | Premium | $8.99 | per month | | Premium | $39.99 | per year | | Premium | $9.99 | per month | | Premium | $19.99 | per 3 months | | Premium | $9.99 | per month | | Premium | $29.99 | per year | | Premium | $9.99 | per month | | Premium | $29.99 | per year | ## What do users think of Sleep Time? Overall sentiment: neutral **Pros** - 👍 Generally a great free app - 👍 Accurate sleep tracking - 👍 Gentle alarm wakeup - 👍 Helpful for sleep insights - 👍 Dependable app for years **Cons** - 🐛 Alarm doesn't always go off - 🔊 Loud ads that can't be closed - 🔋 Drains battery - 🤔 Inaccurate sleep tracking - 🐛 Crashes and bugs after updates **Commonly reported bugs** - Alarm not playing sound - App crashes when trying to view sleep history - Unable to change alarm time - Sleep data not recording properly **Most requested features** - Allow alarm to play through headphones - Provide more sleep sound options in free version - Add ability to manually input sleep time - Improve ad placement and volume control ## Recent user reviews (10 of 1,465) All indexed reviews: https://appshunter.io/ios/app/sleep-time-cycle-alarm-clock/id555564825/reviews.md ### 1/5 — Breaks my Eardrums *2026-08-05, version 5.456* I've been looking for an app that can wake me up a little less aggressively than my normal alarm, and I thought this might work with the 30 minute wakeup, but no. I often listen to white noise or an audiobook through headphones to fall asleep, but when this first alarm starts, it increases whatever other audio is playing to 100%, blasts my eardrums, and shocks me awake more aggressively than my regular alarm. I've tried turning on "air play" in the app and turning the volume for the alarm itself to 0, nothing works. App doesn't have support available beyond generic faqs so here we are. ### 2/5 — Tags list don’t scroll *2026-06-25, version 5.454* With updates , Tags list with many tags don’t scroll. That way the save button is not reachable. Please fix that bug. ### 1/5 — The notes don’t work! *2026-06-05, version 5.454* After the recent update the adding of the notes/ tags after you set the alarm don’t work. The icons are too big to “submit” or whatever it was and if you swipe down it goes away. Fix this. ### 2/5 — Update made it worse *2026-05-16, version 5.452* This latest update has made the app harder to use. The notes that you can add to large but you can’t scroll or save them. The brightness is much too bright. Please adjust. ### 1/5 — Why log in? *2026-05-15, version 5.452* Been using this alarm app for nearly 15 years. Why do you need an account to use it now? Why is there no guest option? I just want to set my alarm. This is heartbreaking. I knew something was in the works when the ads change about a month ago. Sad ### 2/5 — Screen too bright since latest upgrade *2026-05-15, version 5.452* I’ve used Sleep Time for well over a decade and have genuinely loved it. That’s why this latest update is disappointing. The new interface has too many bright white buttons and screen elements, making it much too bright for nighttime use. For a sleep app, dark, low-light usability should be a priority. Please consider adding a true dark mode or reducing the brightness of the buttons. I’d love to keep using the app I’ve trusted for years. ### 1/5 — デザイン改悪 *2026-05-14* アップデートでデザインが一新されましたが、断然以前の方が良かったです。 元に戻して！！ ### 1/5 — Stops working all the time *2026-05-01, version 5.416* This app works for me 1/10 times. Every other time when I wake up and go to shut it off, I find it automatically stopped at some point and didn’t count any of my sleep rendering it useless ### 2/5 — Fix your UI *2026-04-08, version 5.416* The X button to continue into the free app shouldn’t be shoved into the upper right corner where it’s nearly IMPOSSIBLE to hit and close out of the ad. Shame on you ### 1/5 — Cash grab *2026-03-26, version 5.416* After using the app for 5+ years with all features unlock for a small fee, the app has reverted my status back to free version with adds. Not trying to pay additional monthly fees for an application feature I previously had. -app deleted- ## Frequently asked questions about Sleep Time ### What does Sleep Time do? Sleep Time is a comprehensive sleep analysis app and alarm clock designed to help users fall asleep, stay asleep, and wake up feeling refreshed. It provides detailed sleep cycle analysis, tracks sleep patterns, and offers smart alarm features. ### What are the key features of Sleep Time? Key features include a smart alarm clock with customizable alarms, soundscapes for falling asleep, sleep cycle analysis with detailed graphs, Apple Health integration, and cloud backup for sleep data. It also offers Instant Heart Rate integration. ### How much does Sleep Time cost? The app offers a freemium model. While basic features are available for free, users can upgrade to Premium for unlimited access to premium programs, HD videos, and priority support. Premium is available via subscription at $9.99/month or $29.99/year. ### What devices is Sleep Time compatible with? The app is compatible with iOS devices and supports iOS 8 and later. It also integrates with Apple Health, suggesting it is designed for the Apple ecosystem. ### Who would benefit from using Sleep Time? Anyone looking to improve their sleep hygiene, understand their sleep patterns, or wake up more gently would benefit. This includes individuals experiencing sleep difficulties, those interested in health tracking, or users who want a smarter alarm experience. ## Version history (last 5 releases) ### 5.456 — 2026-07-24 Simplified and improved UI. Improved Apple Health export Bug Fixes ### 5.454 — 2026-05-17 Simplified and improved UI. Improved Apple Health export Bug Fixes ### 5.452 — 2026-05-12 Simplified and improved UI. Improved Apple Health export ### 5.416 — 2023-09-01 Top sleep cycle application for over 10 years - Track sleep cycle and sleep quality - Sleep better with soundscapes - Measure resting heart rate when you wake up Your reviews and feedback are important to us! We read them daily to continually improve our application. The Sleep Time Team ### 5.168 — 2018-09-28 Top sleep cycle application for over 5 years - Track sleep cycle and sleep quality - Sleep better with soundscapes - Measure resting heart rate when you wake up Here's what we have for you in this update: - Bug and performance fixes Your reviews and feedback are important to us! We read them daily to continually improve our application. The Sleep Time Team ## Apps similar to Sleep Time | App | Rating | Price | Category | | --- | --- | --- | --- | | [Sleep Time+ Cycle Alarm Clock](https://appshunter.io/ios/app/sleep-time-plus-cycle-alarm-clock/id498360026) | 4.8 (2,483) | Free | Health & Fitness | | [Sleep Cycle - Tracker & Sounds](https://appshunter.io/ios/app/sleep-cycle-tracker-and-sounds/id320606217) | 4.7 (28,142) | Free | Health & Fitness | | [Sleepwave: Alarm & Tracker](https://appshunter.io/ios/app/sleepwave-alarm-and-tracker/id1565509007) | 4.7 (6,512) | Free | Health & Fitness | | [Pillow: Sleep Tracker](https://appshunter.io/ios/app/pillow-sleep-tracker/id878691772) | 4.4 (95,615) | Free | Health & Fitness | | [Sleep Tracker For Sleep Well](https://appshunter.io/ios/app/sleep-tracker-for-sleep-well/id1464912249) | 4.3 (2,133) | Free | Health & Fitness | | [BetterSleep: Relax and Sleep](https://appshunter.io/ios/app/bettersleep-relax-and-sleep/id314498713) | 4.7 (390,600) | Free | Health & Fitness | ## More apps by Azumio Inc. - [Glucose Buddy Diabetes Tracker](https://appshunter.io/ios/app/glucose-buddy-diabetes-tracker/id294754639) - [Sleep Time+ Cycle Alarm Clock](https://appshunter.io/ios/app/sleep-time-plus-cycle-alarm-clock/id498360026) - [Glucose Buddy+ for Diabetes](https://appshunter.io/ios/app/glucose-buddy-plus-for-diabetes/id533299240) - [Instant Fitness: Workout Trainer](https://appshunter.io/ios/app/instant-fitness-workout-trainer/id582719476) - [Instant Abs: Workout Trainer](https://appshunter.io/ios/app/instant-abs-workout-trainer/id583620368) All apps by Azumio Inc.: https://appshunter.io/developer/439290207 ## Related topics [best sleep app hygiene](https://appshunter.io/ios/topics/best-sleep-app-hygiene) · [sleep time](https://appshunter.io/ios/topics/sleep-time) · [record sleep time](https://appshunter.io/ios/topics/record-sleep-time) · [sleep noise timer](https://appshunter.io/ios/topics/sleep-noise-timer) · [sleep time free](https://appshunter.io/ios/topics/sleep-time-free) · [sleep tracker time](https://appshunter.io/ios/topics/sleep-tracker-time) · [free sleep apps cycle](https://appshunter.io/ios/topics/free-sleep-apps-cycle) · [best sleep app baby](https://appshunter.io/ios/topics/best-sleep-app-baby) · [sleep cycle alarm clock](https://appshunter.io/ios/topics/sleep-cycle-alarm-clock) · [wakeyep](https://appshunter.io/ios/topics/wakeyep) · [hatch sleep ap](https://appshunter.io/ios/topics/hatch-sleep-ap) · [sleep cycles](https://appshunter.io/ios/topics/sleep-cycles) · [the hatch sleep app](https://appshunter.io/ios/topics/the-hatch-sleep-app) · [bedtime app](https://appshunter.io/ios/topics/bedtime-app) · [phoneticsleep](https://appshunter.io/ios/topics/phoneticsleep) · [bedtime sleep cycles](https://appshunter.io/ios/topics/bedtime-sleep-cycles) · [sleep health alarm](https://appshunter.io/ios/topics/sleep-health-alarm) · [noxogy sleep tracker](https://appshunter.io/ios/topics/noxogy-sleep-tracker) · [sleep clock](https://appshunter.io/ios/topics/sleep-clock) · [sleep tracking time](https://appshunter.io/ios/topics/sleep-tracking-time) --- *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 2026-08-24.*