# Sleep Science HQ: alarm clock — user reviews > 257 indexed App Store user reviews of Sleep Science HQ by Phase4 Mobile, rated 4.50/5 from 95 ratings. - Source: https://appshunter.io/ios/app/sleep-science-hq-alarm-clock/id966981091/reviews - App overview in markdown: https://appshunter.io/ios/app/sleep-science-hq-alarm-clock/id966981091.md - Rating breakdown: 5★ 63 · 4★ 22 · 3★ 6 · 2★ 2 · 1★ 2 ## What do users think of Sleep Science HQ? Overall sentiment: positive **Pros** - 🎵 Extensive library of 750+ natural sounds - 👍 User-friendly interface and easy setup - 💤 Effective sleep cycle tracking and monitoring - 🌅 Gentle wake-up sequences with customizable sounds - 💰 One-time purchase with no subscription fees - 📊 Clear and informative sleep graphs - 🎧 High-quality, realistic audio recordings - ⚙️ Highly customizable alarm sequences - 🔇 No intrusive ads or account requirements - 🌿 Relaxing nature sounds for falling asleep - ⏱️ Displays remaining time until wake-up - 📝 Dream note-taking feature **Cons** - 🐛 App crashes and freezes frequently - 🔋 High battery consumption overnight - 📱 Requires keeping app in foreground to function - ⚠️ Sleep detection accuracy issues - 🔊 Limited traditional alarm tone options - 🎯 Unintuitive user interface for some users - ⏰ Only one alarm time per day - 🔌 Screen must stay on all night - 🎵 Sound preview playback problems - 📊 Inconsistent sleep data compared to other apps - 🚨 Alarm sometimes fails to trigger - 🎧 Sound download/management is cumbersome **Commonly reported bugs** - App crashes on startup for some devices - Microphone fails to record sleep sounds - Sleep data shows 0 hours despite time in bed - Alarm triggers at unscheduled times - Sound preview doesn't play on demand - Frequent app freezes during sound selection - Incompatibility with older iOS versions - Data loss when upgrading from free to paid version - Inconsistent sleep detection with bed movement - App stops monitoring when switching applications - Rating prompt appears too frequently **Most requested features** - Multiple alarm times for different weekdays - Integration with Apple Health app - Adjustable alarm fade-in duration - Volume preview when setting alarms - Traditional alarm tone options with fade-in - Apple Watch support - Ability to use personal music library for alarms - Data backup and restoration between devices - Sleep sounds that fade out automatically - Shake/tilt to snooze functionality - More animal and nature sound variety - Mixing/blending multiple sounds together - Better sleep algorithm and accuracy - Vibration-only alarm option - Improved sound file management system ## Newest reviews (14 of 257) ### 3/5 — Malo *2023-12-11, version 3.1* No tiene sonidos para que te ayuden a relajar mientras te dormís, nunca registró sonido... no lo descarguen!!! ### 4/5 — Great *2023-06-21* This is great ### 3/5 — Etwas fehlt. *2023-05-25* Soweit gut, es fehlt aber unbedingt eine 2.oder sogar 3. Weckzeit. ### 4/5 — Great rain and stream sounds *2023-05-10* Glad I purchased ### 4/5 — Assey bien pour aider à sans dormire sans caget *2020-12-10* Et aide à couvrîtes mon acouphène sur l,oreil guai je , je suis bien content d,avoir trouver cette application j,ai mis4 mais je change d,avie sa mérite 5 etoile ### 4/5 — Gut *2020-02-12* Mit der App ist das entspannte Aufwachen ein Kinderspiel. Fünf Sterne würde ich geben wenn man für jeden Wochentag individuelle Weckzeiten voreinstellen könnte. So muss der Wecker jeden Abend neu eingestellt werden. Dafür ein Stern Abzug ### 4/5 — Jury’s still out... *2019-09-23* I paid for this nice fancy alarm and cannot for the life of me figure out how to set it for 6:00! All it lets me do is input the number of hours I would like to sleep, but I have to actually get up to get my son on the bus. **Developer response:** To set the alarm, move the white ball around the clock. Please contact us in the app via “Questions or Feedback”, we’d be glad to help with other questions. ### 4/5 — A good app, but... *2019-08-24* This app does most everything you’d want from a standard monitoring app, it monitors and documents the nightly cycles. The graphics are cool. It needs the option to use music from your music library to wake up to. The big thing it doesn’t do, which is why it isn’t my main sleep app, is it does not work with Apple Health. Not sure why this wasn’t included, but is needed! **Developer response:** Thanks for the feedback. The app provides 750 naturally-recorded high quality sounds and this is the focus vs. playing music. You can wake up in a rainstorm by a stream, or by the ocean, and if still sleeping, have birds or other nature sounds ease you gently awake. Please give the custom 6-sound wake-up sequences a try! ### 4/5 — A little difficult *2019-01-18* To navigate. Wish it had a repeat. I like the wake up sounds a lot. That’s why I chose it. I like waking up slowly to quietly rising natural sounds. So I’ll use it for awhile. **Developer response:** Glad you like the wake up sounds! The app always remembers your last alarm time and wake-up settings, just tap Set Alarm. Please contact us via Questions or Feedback in the app, we’d be glad to help with other questions. ### 5/5 — Excellent app *2018-08-21* Helps to realize how much do you sleep and is very similar to a medical sleep study ### 2/5 — Desperta duas vezes. *2018-07-06* Desperta todo dia num horário sem eu ter programado. Depois desperta no meu horário. ### 4/5 — Intéressant *2018-05-27, version 2.2* Voire même très intéressant ### 5/5 — Great *2018-05-25* I love this app I try and get into a sleeping pattern ### 3/5 — Upgrade Slaapwetenschap *2018-05-04, version 2.1* Jammer dat de loggegevens niet mee worden overgenomen wanneer je naar de betalende versie overschakelt! Verder zeer leuke app! ## Most critical reviews (10 lowest-rated) ### 1/5 — Poor sleep *2024-12-07, version 3.1* I didn’t find the app st all helpful I Ned sounds to get to sleep; waking is not a problem Where is the science? ### 1/5 — Horrible *2024-01-30* App is just a Settings screen. Doesn’t do anything. Don’t buy **Developer response:** Hmm.. the app is a fully functioning natural sound alarm clock with 750 sounds that also measures your sleep. Maybe you’re reviewing a different app? Try setting an alarm and look through the Sound Catalog to see 750 sounds. ### 1/5 — Devi tenere sempre l’app aperta *2022-10-09, version 3.0* Molto scomoda, devi tenere sempre l’app aperta, impostarla ogni giorno, l’orario va a blocchi di 5 minuti, non è funzionale. Rischi di non capire quando è attiva, la sveglia funziona solo se attivi il monitoraggio sonno. Valutazione negativa. ### 1/5 — Нету звуков *2021-03-10* Деньги взяли за 4 звука вместо 750... мда **Developer response:** Загрузите звуки из КАТАЛОГ ЗВУКОВ в библиотеку МОИ ЗВУКИ. Связывайтесь с нами через раздел "Вопросы и отзывы" в приложении. Мы будем рады помочь. ### 1/5 — Je n’ai pas trouvé comment régler l’heure du réveil ! *2020-10-10* Ce n’est pas vraiment un réveil. J’ai le sentiment que l’appli vous réveille lorsque que vous avez eu votre quota de sommeil. Ce n’est donc pas pour les gens qui bossent ! **Developer response:** Veuillez utiliser la section "Questions ou commentaires" de l'application pour nous contacter. Nous serons heureux de vous aider! Pour régler l'heure de l'alarme, déplacez l'icône d'alarme blanche près du bord extérieur de l'horloge. ### 1/5 — Wants you to leave the screen on all night! *2019-10-12* I can’t believe they expect you to leave your screen on all night. **Developer response:** The app works closed and with the screen locked. You can swipe down on the screen to lower the brightness when the app is open. If you close the app be sure to keep the phone plugged in. Please contact us in the app via “Questions or Feedback”, we’d be glad to help further. ### 1/5 — Проблема *2017-11-17* Добрый день,оплатила дополнение за 149 рублей ,но у меня всего 4 звука и одна подборка из 4х имеющихся. Пожалуйста исправьте это **Developer response:** Чтобы загрузить 750 звуков, нажмите «КАТАЛОГ ЗВУКОВ». При установке будильника нажмите «Выберите звук или подборку». ### 1/5 — コレは酷い💢 *2015-11-21* 5s iOS7.1.2 無料版は使えたのに有料版はアプリが起動すらしない。 アイコンタップ→即落ち 何コレ❓全く使えないんだけど。 無料版にないバグが有料版にあるって一体何なの？ 7月購入以来、アップデートも無いので今まで一度も使えない。 有料版だよコレ❗️ 5sでiOS7.1.2の人は、例え無料版が気に入ったとしても、この有料版は買わない方がいいですよ❗️ 起動すらしない糞アプリです❗️ ### 1/5 — Не разбудил! *2015-08-07* 1. Не выполнил главного - не разбудил!! Каким то волшебным образом - отключился .. 2. Если на кровати кто-то еще шевелится - чувствует.. (нужен какой то браслет наверное) Итого: из-за п.1 низкая оценка. Пожалел потраченные деньги ### 1/5 — Réveil grossier *2015-08-02* Cette appli ne fait ce pas qui est annoncée. C'est tout simplement un réveil. Sur mon iPhone 5 aucune des autres fonctions ne fonctionne et à part l'heure de réveil rien n'est mémorisé... ## Most praised reviews (10 highest-rated) ### 5/5 — Gerade gekauft *2026-02-18* Ich hatte Sleep Cycle bis heute genutzt, leider gab es dort immer mehr Einschränkungen und immer mehr Werbung trotz einmaliger Bezahlung. Bei dieser App scheint alles zu stimmen, sogar die Restzeit bis zum Aufwecken wird angezeigt. ### 5/5 — Excellent *2023-08-25* This is a really good app, now I am able to get the amount of sleep I need with no guesswork on the matter and I feel much better for it, health has improved and so has my blood pressure, priceless.😀😀😀😀😀 I have had this app for a while now and I am still happy with how it works, but it can eat up storage space though it can be cleared.😀😀😀😀😀 Just to say there are lot of lovely sounds to wake up to, I recommend the Welsh Blackbird. Can’t think why I have not used this in a while but now I have come back to it. I like waking to the sound of birds singing, by far more gentle than a ordinary alarm clock. ### 5/5 — Как поставить будильник? *2022-07-29* Уважаемые разработчики! Подскажите как изменить время просыпания? Интерфейс не понятный… не интуитивный **Developer response:** Чтобы поставить будильник, передвиньте белый шарик на край часов. Связывайтесь с нами через раздел "Вопросы и отзывы" в приложении. Мы будем рады помочь! ### 5/5 — Simplemente útil para soñar y despertar *2022-05-28, version 3.0* Muy buen trabajo por parte de los desarrolladores de esta app es muy completa monitorea el sueño e incluso graba algunos sonidos al finalizar cada sesión puedes ver un grafico del comportamiento que tuviste es muy buena incluso el personalizado del sonido del despertador, definitivamente es algo que necesitas si usas tu dispositivo también como despertador. puedes probar la versión gratuita y si te gusta comprar la versión completa. ### 5/5 — Thanks so much for making this *2022-04-28, version 3.0* Every other smart alarm app seems to cost upwards of 20€/ year. I much prefer paying flat prices and can’t believe this app offers everything I was looking for for pretty much nothing. ### 5/5 — Sleeping great now *2022-01-09, version 3.0* Very nice app. ### 5/5 — Perfect *2019-12-16, version 2.5* Exactly what I was looking for. ### 5/5 — Großartig 😊 *2019-08-29* Ich finde es wunderbar, das der Entwickler diese App zum Kauf anbietet. Kein völlig überteuertes Abo, keine mit Werbung überladene Bedienoberfläche wie bei manch anderen Weckern. Ich schätze diese Art des Aufwachens sehr und möchte nicht mehr auf einen Schlafphasenwecker verzichten. Der Wecker funktioniert einwandfrei, ist leicht zu bedienen und die Wecksequenzen sind individuell zusammenstellbar und von hervorragender Klangqualität wie ich finde. Ich benutze sie zb auch fast täglich mit meinem Headset im Büro um die Kollegen mal auszublenden. Der Akkuverbrauch über Nacht hält sich in Grenzen (iPhone 8+). Habe da auch schon andere Erfahrungen gemacht. Echt klasse. Bin begeistert. Vielen Dank! ### 5/5 — Must have! *2019-03-15* I love this app! I work crazy schedules and don’t know what I would do without it. Coupled with the sleep sounds I get the rest I need in difficult situations. ### 5/5 — Me gusta mucho esta app *2018-09-04, version 2.2* Me encanta puedo ver cómo duermo y he mejorado algo en este aspecto --- *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 2026-09-03.*