# Sleep Calculator Pro — user reviews > 32 indexed App Store user reviews of Sleep Calculator Pro by DealWatch24 LLC, rated 5.00/5 from 75 ratings. - Source: https://appshunter.io/ios/app/sleep-calculator-pro/id1416795317/reviews - App overview in markdown: https://appshunter.io/ios/app/sleep-calculator-pro/id1416795317.md - Rating breakdown: 5★ 73 · 4★ 2 · 3★ 0 · 2★ 0 · 1★ 0 ## Newest reviews (16 of 32) ### 5/5 — Simple but works *2020-01-31, version 1.1.052* It’s very quick and easy ### 5/5 — Update *2019-11-26, version 1.1.052* It really made the app better, adding lots of new functions, which the older version definitely lacked ### 5/5 — SIMPLE!! *2019-08-21, version 1.0* so simple and easy to use. it EVEN TELLS U WHEN TO GO TO BED! NOT SLEEP BUT GO TO BED. i learned a bit of info that i didn’t know but it’s quite simple and it’s helpful when trying to actually getting a good night sleep ### 5/5 — AMAZING *2019-06-12, version 1.0* I’ve been using Sleep Calculator for about a year now and I am absolutely in love with it. This is an app I will use until the day I die !! The only confusing thing is when it says that it takes an average person 15 minutes to fall asleep, and goes on to say that if I were to go to bed right now I would wake up well rested at following times. Although I don’t know if I were to fall asleep in 15 minutes that the times I would wake up well rested would still be the same times. Please clarify !!!!!! ### 5/5 — Simple and Effective *2019-05-11, version 1.0* This app is very easy to use and every time I put my alarm at a time it says to wake up at, I wake up easily and well rested. ### 5/5 — The best one. Period. *2019-02-16, version 1.0* Simple, to the point, accurate ### 5/5 — Sensational App! *2019-01-23, version 1.0* Have been using the website version of this app for about 6 months and have been having the best sleeps of my life waking up at the indicated times. It seems strange at first but the benefits to waking up at a specific time vs “in a few hours” make me feel far more well rested! This app is very well done, super easy to use and has no ads or paywall. I highly recommend downloading it and giving it a go! I’ve suggested this app to a few friends and they’ve all been very happy with the sleep results. Great job devs! ### 5/5 — Really Helpfull *2019-01-03, version 1.0* This app is very accurate and I use it every day ### 5/5 — شذاا قلوده يالله *2018-11-20, version 1.0* قلوووده ### 5/5 — Sober up. *2018-10-24, version 1.0* Just stop using drugs, yeah you...I’m talking to you. You think you can keep your homeostasis in check. Good Application. ### 5/5 — Brilliant, no honestly... *2018-10-16, version 1.0* I used to use the website all the time. I’m a student, and sometimes don’t get enough sleep (what do you expect haha). However, it’s nice to know what time is the best to wake up so I don’t feel as bad for those 9am’s. Just like the website, it’s easy, simple and effective. Can’t really say any more that that. Definitely recommend ### 5/5 — Great app *2018-10-13, version 1.0* Honest, simple app that is very useful and has a pleasant interface. I’ve been using the website for quite a while, was excited to see the app debut. Highly recommend ### 5/5 — Since around 2012 *2018-10-01, version 1.0* I used to use this website to schedule my sleeping especially in finals. it was working very well actually and I’m glad that it turns to an application 🙏❤️ ### 5/5 — Great App! *2018-09-30, version 1.0* I had been using this on my computer, and was honestly so pumped when I saw they had created an app for iPhones. It’s so simple to use. Love it! ### 5/5 — Use it every day *2018-08-23, version 1.0* Dear SleepCalc Team, I’ve been using your website for a super long time and now the app is out, so congrats on this! But there are couple of things I’d like to let you know: 1. Design of the time “buttons” on your Website is a bit round which looks cute, in the app it’s more edgy, maybe I’ll get used to it, but smooth looks better imho (Same for the typeface design) 2. Maybe adding an alarm function? Now it’s an app, so that’s could be possible and useful 3. Maybe a possibility of using own wallpapers?? Love you with all my heart, thank you 💖 ### 5/5 — Great app *2018-08-13, version 1.0* Been using this on my phone browser, great to have a more convenient app! It has a simple and cute design too. It's great for helping you feel the most refreshed in the morning regardless of how little sleep you actually got. Would recommend. ## Most critical reviews (10 lowest-rated) ### 3/5 — Why no integration with Apple Health app ? *2023-10-11, version 1.2.34* I’m Loving the Sleep Calculator Pro. Its lightweight, has all the necessary functionalities however there is one very crucial feature that has become a deal breaker for me & even my friend, its not integrated with the Apple health app. The health app can’t access its data and copy my sleep hours to itself. I have to now manually into my hours in the health app every morning, there are plenty other apps that does this one simple thing automatically. I don’t need an integration with any wearable just the basic Apple Health app. ### 3/5 — App does the job *2021-12-30, version 1.2.26* Don’t understand why a bright blue display would be suitable for an app that you would most likely visit just before sleeping ### 4/5 — Weird word choice..? *2019-02-01, version 1.0* The info says sleep cycles are 90 minutes and the calculations are based on that. But the wording says “It takes a person about 15 minutes to fall asleep, so if you go to sleep right now...”. I’m pretty sure it should say “if you get in BED right now” (implying that then you will fall asleep 15 minutes after now). Other than that, I love having an app for this! ### 4/5 — Great but slightly inaccurate *2018-10-31, version 1.0* Invaluable app! However here’s some feedback for the creators... the app’s “go to bed” times are an hour behind the website version. E.g. if you want to wake at 6am, the app says the earliest you can go to bed is 7:45pm but the website says 8:45pm. When hitting “when should I wake up?” at 8:45pm (as I have just done now), both app & website state the latest wake up time as 6am - proving that the app is displaying incorrect “go to bed” times. I’ve uninstalled the app for the moment but I’m continuing to use the website version which is invaluable - thank you. ### 5/5 — Everything I want *2026-02-03, version 1.2.116* Exactly everything I want, practical ### 5/5 — straight forward, easy to use *2024-12-13, version 1.2.116* no adds, no bright screen. Open the app. Put in the time I want to wake up and hit calculate bedtime. ### 5/5 — 10/10 *2023-08-10, version 1.2.34* I Love this app! ### 5/5 — W app *2023-07-31, version 1.2.34* I slept like a log ### 5/5 — Apple Watch *2022-09-30, version 1.2.34* Сделайте пожалуйста для часов ### 5/5 — Review *2021-07-29, version 1.2.26* This app is free and one of the best out ther and is for freeee and has all the trends and stats. ## Most praised reviews (4 highest-rated) ### 5/5 — everyone needs this !! *2021-07-20, version 1.2.26* once you use this it becomes an everyday habit !! i love this and recommend anyone and everyone to use it :) ### 5/5 — best app you can get for smart alarm *2021-02-02, version 1.2.25* I usually never write reviews for apps, but this app is just so amazing that I felt obligated to. It’s a super simple interface, and it has all the information you need to calculate when to go to sleep/wake up. It also tracks your sleep through sound and movement (which I don’t utilize as much, because sleep trackers tend to be a bit inaccurate at times). You can set up notifications to remind you when you should sleep and I prefer it over the default bedtime feature. And all of this is free!! ### 5/5 — Free version is GREAT and has everything you need *2020-11-23, version 1.2.25* This app is the epitome of what a free version should look like. It functions perfectly fine and has all the advertised features available in the free version- calculator, alarm, sleep sounds- but if you’d want more sounds for alarms or white noise, there is the paid option. Love that you can make it super customized. Not everyone falls asleep at the same rate, and you can change that so it can calculate a more accurate bedtime. If you’re trying to maintain a better sleep schedule, this app is a must have. ### 5/5 — amazing app *2020-06-18, version 1.1.054* as a person who struggles with insomnia and getting up in the morning, sleep calculator has definitely helped me to wake up feeling well rested and alert. this app has no pay walls or ads, plus a wide range of specific sleep and wake up times. i strongly recommend this app if you’re having troubles with sleep or waking up. --- *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 2026-08-23.*