Comparison

Sleep Time+ Cycle Alarm Clock vs mountain sleep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sleep Time+ Cycle Alarm Clock

Understand your sleep patterns and wake up feeling refreshed. This app tracks sleep cycles, offers soothing soundscapes for falling asleep, and measures resting heart rate without wearables. It provides detailed analysis and customizable alarms to optimize your sleep and wake-up experience.

Highlights
  • Sleep cycle analysis
  • Soothing soundscapes
  • Resting heart rate measurement
  • Smart alarm clock
  • Detailed sleep graphs
  • Apple Health integration
Features
Read full description

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

About

mountain sleep

Read full description

If you need help to fall asleep this is the right APP. I have recorded cowbells, crickets and birds in the Swiss mountains. I used a 4-channel microphone to record these sounds. I remastered these recordings in a high definition m4a format. You can use them as background sound from 3 to 59 minutes. The sounds will fade out at the end. Happy sleep! Select the background sound from cowbells, birds, crickets and brook Select the minutes before the sound will fade out This APP works in the background. 4 channel Dolby recording in Switzerland Grindelwald

Screenshots

Sleep Time+ Cycle Alarm Clock4 screens
mountain sleep3 screens

Verdict

The call

The clearest difference is in-app purchases: mountain sleep at none against Sleep Time+ Cycle Alarm Clock's 10. mountain sleep also leads on ads (none vs shown) and device support (3 vs 1). Sleep Time+ Cycle Alarm Clock's advantage is update cadence (monthly vs every 20 months). On price and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sleep Time+ Cycle Alarm Clock sells 8 in-app purchases, starting at $4.99 per month. mountain sleep asks for nothing beyond the download.

UpkeepUpdate frequency

Sleep Time+ Cycle Alarm Clock ships an update monthly, mountain sleep every 20 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Sleep Time+ Cycle Alarm Clock versus mountain sleep: the parameters behind the verdict, then further details
ParameterSleep Time+ Cycle Alarm Clockmountain sleep
PriceFreeFree
Rating4.8 (2.5K ratings) — better—
Positive reviews68.8% of reviews—
Number of ratings2.5K — better—
Update frequencyMonthly — betterEvery 20 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.5 — better
Further details — not scored
Size185 MB26 MB
Age rating4+4+
DeveloperAzumio Inc.Kilian Eisenegger

Bugs and requests

Sleep Time+ Cycle Alarm Clock

Reported bugs

4 issues
  • Crashes on startup
  • Freezing issues
  • Inconsistent alarm behavior
  • Lost sleep data after updates

Requested features

4 requests
  • Heart rate monitoring integration
  • Sleep data export and analysis
  • Apple Watch companion app
  • More customization options

mountain sleep

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Sleep Time+ Cycle Alarm Clock

Subscriptions8
  • Premium$4.991 Month
  • Premium$8.991 Month
  • Premium$9.991 Month
Show 5 more
  • Premium7 Days trial2 variants$9.991 Month
  • Premium$19.993 Months
  • Premium$29.991 Year
  • Premium1 Month trial2 variants$29.991 Year
  • Premium$46.991 Year
None

mountain sleep

No in-app purchases

Questions

Is Sleep Time+ Cycle Alarm Clock free?
Sleep Time+ Cycle Alarm Clock is free to download, with in-app purchases available.
Is mountain sleep free?
mountain sleep is free to download, with no in-app purchases.
Do Sleep Time+ Cycle Alarm Clock or mountain sleep have ads?
Sleep Time+ Cycle Alarm Clock shows ads; mountain sleep does not.
Which is updated more often, Sleep Time+ Cycle Alarm Clock or mountain sleep?
Sleep Time+ Cycle Alarm Clock ships an update monthly, and mountain sleep every 20 months. Most recently, Sleep Time+ Cycle Alarm Clock was updated on November 1, 2026 and mountain sleep on November 3, 2026.

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