App Intel

Time4Sleep: Sleep Cycles

LiveCircle Apps Studio5 apps · 115K installsHealth & FitnessFree · contains adsIn-app purchases: $1.99 - $9.49 per itemcom.circleappsstudio.time4sleep

Wake up refreshed! Calculate your sleep cycles and avoid morning grogginess

Alert me★ WatchOpen in Play ↗
Total installs
113,633
exact · Play shows 100,000+
Installs / day
0
since last crawl
Rating
3.6★
1.2K ratings · 7 reviews
Released
1 Aug 2020
6.2y ago
Last update
11 Sept 2026
v2.8.3 · 1mo ago
Countries
—
not checked yet

Install history

exact counter from Google Play
111K133.2K155.5K177.7K200K10 Oct11 Oct12 Oct
111K133.2K155.5K177.7K200K10 Oct11 Oct12 Oct

Installs per day · last 90 days

00.30.50.8111 Oct12 Oct12 Oct11 Oct: 012 Oct: 0

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

Data safety

declared by the developer on Google Play
  • Shares data with third parties App info and performance and Device or other IDs
  • Collects data App info and performance
  • Data is encrypted in transit
  • No way to ask for data deletion

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

6 in 1 group
0 Sensitive1 Notable5 Routine
OtherNotable6

Access to miscellaneous device features that don't fit other categories

  • Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
  • Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
  • Connect to the internet to load content and send datafull network access · INTERNET
  • Set an alarm in your phone's clock appset an alarm · com.android.alarm.permission.SET_ALARM
  • Read Google service settings stored on your deviceread Google service configuration · com.google.android.providers.gsf.permission.READ_GSERVICES
  • Receive push messages sent from the app's servers over the internetreceive data from Internet · com.google.android.c2dm.permission.RECEIVE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description
​💤 Time4Sleep – Smart Sleep Cycle Calculator to Sleep Better and Wake Up Energized. ​Time4Sleep is a precision sleep cycle calculator and smart alarm assistant designed to help you sleep better, wake up refreshed, and improve your rest naturally. ​Stop waking up tired. Discover the best time to fall asleep or wake up by optimizing your REM sleep cycles. Simply choose your desired time, and Time4Sleep will automatically calculate the perfect windows so you can wake up with more energy and avoid morning grogginess. ​🔶 Main Features: ​✓ Smart sleep cycle calculator based on biological rhythms. ✓ Helps you sleep better and wake up without grogginess (sleep inertia). ✓ Tools to optimize your nighttime routine and circadian rhythm. ✓ Clean, minimalist, and intuitive interface for better usability. ✓ Tips to achieve deeper, more restorative and restful sleep. ✓ Useful information on how sleep works and how to optimize it with science. ​✨ AIBrief – Intelligent Sleep Assistant. ​Time4Sleep includes AIBrief, an AI-powered assistant that gives you personalized summaries, daily suggestions, and calming messages to improve your sleep quality. ​AIBrief analyzes your habits and provides: ✓ Personalized greetings based on the time of day. ✓ Simple tips to sleep better and rest more deeply using AI technology. ✓ Short reflections for your morning and nighttime routine. ✓ Easy recommendations to wake up with more energy and focus. ✓ Daily support to help you build healthy and lasting sleep habits. ​AIBrief turns your nights into a moment of calm and your mornings into a clearer, more balanced start. ​🌙 Perfect for you if you want to: ​• Sleep better and improve your overall health. • Wake up without grogginess every morning. • Optimize your sleep cycles and REM stages. • Achieve deeper, more restorative rest. • Build a healthy nighttime routine with AI support. • Use smart tools to relax and boost your daily well-being. ​🚩 Need help? ​Contact us at: [email protected]

What's new

🚀 New update available! 🐞 In this new version, we've worked on bug fixes.

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