Alarm Klock

At a glance

• Editor score
  7.9 / 10
• Pricing
  Free plan
• Best for
  Open-source users needing straightforward alarms
• Free plan
  Yes
• Paid from
  None
• Wake-up challenges
  No
• Facts checked
  3 Oct 2026

• 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.

Our verdict on Alarm Klock

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 of the week. This makes it a fit for routine schedules and users who prefer configuring their alarms without a paid-plan structure. The app is mobile-only, and its published feature set centers on alarm scheduling rather than broader sleep or wake-up tools.

Sound and timing are the main areas of flexibility. Alarms can use a ringtone, vibration, or both, and audio can come from MP3s or the device’s media library. Snooze time and alarm volume are adjustable, with global and per-alarm settings available. These options suit people who want to tailor individual alarms or use their own audio. The listed capabilities do not include sleep tracking or wake challenges, so buyers seeking those functions should consider an app built around sleep monitoring or interactive wake-ups instead.

Alarm Klock is open source and free, with the F-Droid listing identifying the license as Apache License 2.0 and offering downloadable builds. The listing’s version 2.13 requires Android 13 or newer, a relevant constraint for anyone considering compatibility with an older device. Choose Alarm Klock if an open-source Android app with repeating schedules, customizable sound, snooze, and volume covers your needs. Look elsewhere if you need sleep tracking, wearable features, or a broader set of sleep-related tools.

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Alarm Klock pricing

Alarm Klock fact sheet

Alternatives to Alarm Klock

• GCGoogle ClockA free Android clock for recurring alarms, timers, world times and bedtime sounds.9.2
• SCSleep CycleA free-to-start sleep tracker pairing a 30-minute smart-wake window with nightly analysis.8.8
• AAaka AlarmA free, open-source Android alarm with noise-based smart wake and simple controls.7.9

See all Alarm Klock alternatives →

Alarm Klock vs the competition

• AKGCAlarm Klock vs Google Clock
• AKSCAlarm Klock vs Sleep Cycle
• AKAAAlarm Klock vs aka Alarm
• AKAAlarm Klock vs Alarmy
• AKAlarm Klock vs Sleep as Android
• AKACAlarm Klock vs Alarm Clock, Timer & Stopwatch

Compare Alarm Klock with any tool side by side →

Featured on iTechGuides

Alarm Klock is listed in our Android Alarm Clock Apps directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 21 Oct 2026 · How we research and update