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Head-to-head · Android Alarm Clock Apps

Sleep Cycle vs Alarm Klock

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Sleep Cycle #2 in Android Alarm Clock Apps 8.8/10 Free plan Free plan✓ 4 of 5 features Visit Sleep Cycle
Alarm Klock #4 in Android Alarm Clock Apps 7.9/10 Free plan Free plan✓ 1 of 5 features Visit Alarm Klock

Sleep Cycle leads on 2 checks, Alarm Klock on 0, and 3 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSleep Cycle · 8.8/10
  • Free planboth
  • Most featuresSleep Cycle · 4 of 5

Sleep Cycle scores higher on our rubric for android alarm clock apps: 8.8 against 7.9 out of 10; our editors rank them #2 and #4.

Sleep Cycle offers wake-up challenges; Alarm Klock doesn't. Sleep Cycle offers sleep tracking; Alarm Klock doesn't.

Sleep Cycle is the better fit for users who want smart wake and sleep analysis. Alarm Klock is the better fit for open-source users needing straightforward alarms.

  • Sleep Cycle fits best

    Users who want smart wake and sleep analysis

  • Alarm Klock fits best

    Open-source users needing straightforward alarms

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. How we rank.

Side by side

Feature Sleep Cycle 8.8/10 Visit ↗ Alarm Klock 7.9/10 Visit ↗
At a glance
Editor score 8.8 7.9
Ranking #2 in Android Alarm Clock Apps #4 in Android Alarm Clock Apps
Best for Users who want smart wake and sleep analysis Open-source users needing straightforward alarms
Pricing model Free plan + paid Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Mobile Mobile
Platforms Android, iOS Android
Features Sleep Cycle 4/5 · Alarm Klock 1/5
Wake-up challenges ✓ (best) —
Sleep tracking ✓ (best) —
Recurring schedules ✓ ✓
Timer support Not checked yet Not checked yet
Wearable support ✓ (best) Not checked yet
Specs
Smart-wake window 30 min Not checked yet
Our review
Pros
  • Smart alarm aims to wake during lighter sleep within a 30-minute window.
  • Nightly graphs, sleep-stage information and trends track sleep patterns.
  • Health Connect, Google Fit and Wear OS remote controls extend Android use.
  • Schedule alarms to repeat on selected days of the week.
  • Choose a ringtone, vibration, or MP3 and media-library audio.
  • Adjust snooze time and alarm volume globally or per alarm.
Cons
  • Sleep analysis remains phone-based, even with a Wear OS watch remote.
  • Some analysis and personalization features require Premium.
  • Sleep sounds and Sleep Aid have limited free access.
  • No sleep tracking is listed.
  • No wake challenges are listed.
  • Listed version 2.13 requires Android 13 or newer.
Our verdict

Sleep Cycle is a mobile sleep-tracking app for people who want an alarm tied to sleep patterns rather than a fixed wake time alone. Its smart alarm aims to sound during a lighter sleep phase within a 30-minute wake-up window. Alongside the…

Read the review →

Alarm Klock is an open-source alarm clock app for Android, aimed at people who want straightforward alarms with control over timing and sound. Its settings can apply globally or per alarm, and recurring alarms can be set for selected days…

Read the review →
  1. Sleep CycleAndroid Alarm Clock Apps 8.8Free plan
  2. Alarm KlockAndroid Alarm Clock Apps 7.9Free plan

Strengths and trade-offs

  • Sleep Cycle — where it wins

    • Smart alarm aims to wake during lighter sleep within a 30-minute window.
    • Nightly graphs, sleep-stage information and trends track sleep patterns.
    • Health Connect, Google Fit and Wear OS remote controls extend Android use.

    Where it doesn't

    • Sleep analysis remains phone-based, even with a Wear OS watch remote.
    • Some analysis and personalization features require Premium.
    • Sleep sounds and Sleep Aid have limited free access.

  • Alarm Klock — where it wins

    • Schedule alarms to repeat on selected days of the week.
    • Choose a ringtone, vibration, or MP3 and media-library audio.
    • Adjust snooze time and alarm volume globally or per alarm.

    Where it doesn't

    • No sleep tracking is listed.
    • No wake challenges are listed.
    • Listed version 2.13 requires Android 13 or newer.

More comparisons

All android alarm clock apps comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update