Comparison

Sleep Timer vs WakeZen

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

Head to head
About

Sleep Timer

Read full description

Sleep Timer is a transparent, science-based app designed for comfortable sleep and gentle waking. Built for people who need a clean and reliable sleep tool: - Free app - No subscriptions - No ads - No account registration - No data collection - Works entirely offline SLEEP TIMER & FALLING ASLEEP Smooth audio fade-out, smart screen dimming, and haptic feedback help you fall asleep quickly and naturally: - Precise fade-out duration (audio gradually fades to zero without jolting you awake). - Haptic pattern support (e.g., an "Inhale/Exhale" rhythm to help slow your heart rate). - Automatic playback stop to save battery life. GENTLE WAKE-UP (ALARM) Forget harsh and startling alarms. Sleep Timer wakes you up as comfortably as possible: - First — a gradually increasing vibration (from rare pulses to frequent ones). - Then — your chosen ambient sound, with volume rising from 0% to 100% over a custom duration. - Works independently of the sleep timer (you can set both night and morning modes simultaneously). MASSIVE LIBRARY & MIXES Create your perfect acoustic environment. Combine up to 3 sounds into your ideal mix with individual volume controls: - Classic noises (white, brown, radio static). - Nature sounds (rain on a tent, ocean waves, forest, melting snow, night crickets). - Cozy home textures (fireplace, fan, cat purring, brewing coffee). - City and travel (train rhythm, night city noise, airplane cabin). FULL-SCREEN BACKGROUNDS & COLOR THERAPY Your phone turns into a window overlooking the rain or the night sky: - Full-screen live backgrounds that won't blind you in the dark (Dunes, Night Sea, Starry Sky). - Warm color filters to block blue light. - Customizable smooth screen dimming synchronized with the audio fade-out. SCENARIOS & SCIENTIFIC APPROACH - Save your favorite timer and sound combinations for a quick start. - Use built-in, research-based presets (e.g., "Resonance Breathing" to lower heart rate variability, or a 25-minute "Power Nap" to avoid sleep inertia). PRIVACY BY DESIGN All your settings, mixes, and scenarios are stored exclusively locally on your device. Sleep Timer does not send audio data to a server, has no built-in trackers, and does not share information with third parties. IMPORTANT Sleep Timer is a tool for relaxation and acoustic environment control. The app is not a medical device. If you suffer from chronic insomnia, sleep apnea, or other serious sleep disorders, please consult a doctor.

About

WakeZen

This smart alarm app transforms your wake-up experience by requiring you to complete a mission before silencing. Choose from math problems, shaking your phone, or taking a photo to ensure you get out of bed with purpose and build a stronger morning routine.

Highlights
  • Mission-based alarms
  • Math, Shake, and Photo challenges
  • Progress tracking and streaks
  • Fast and simple alarm setup
  • Clean, focused design
  • Build stronger morning habits
Features
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Wake up with purpose, not with snooze. WakeZen is a smart alarm app that helps you get out of bed by turning every alarm into a mission. Instead of silencing your alarm and falling back asleep, WakeZen makes you solve, shake, or snap your way into the day. It is built for people who want a cleaner, stronger, and more intentional morning routine. How WakeZen works Set your alarm, choose your mission, and when it is time to wake up, complete the challenge to finish your wake-up flow. Choose your mission Math Mission Solve quick math problems to wake up your mind. Shake Mission Shake your phone with intention to get your body moving. Photo Mission Take a photo to prove you actually got out of bed. Why users love WakeZen Smart mission-based alarms Math, Shake, and Photo wake-up challenges Fast and simple alarm setup Progress tracking and streaks Clean, focused design built for daily use Build stronger mornings WakeZen helps you stay consistent by tracking your completed wake-ups, protecting your streak, and turning small wins into better habits over time. Whether you are trying to stop oversleeping, improve your routine, or start the day with more discipline, WakeZen gives you a better way to wake up. Set your next alarm. Choose your mission. Wake up with purpose. Privacy Policy : https://wakezen.app/privacy-policy.html Temrs of Use : https://wakezen.app/terms-of-use.html

Screenshots

Sleep Timer4 screens
WakeZen4 screens

Verdict

The call

The clearest difference is in-app purchases: Sleep Timer at none against WakeZen's 2. Sleep Timer also leads on iOS requirement (17.6 vs 26.1). On price, ads and device support 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. WakeZen sells 2 in-app purchases, starting at $4.99 per month. Sleep Timer asks for nothing beyond the download.

Scorecard2 real differences · 7 level
Sleep Timer versus WakeZen: the parameters behind the verdict, then further details
ParameterSleep TimerWakeZen
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhoneiPhone
Requires iOS17.6 — better26.1
Further details — not scored
Size37 MB9 MB
Age rating4+4+
DeveloperXeniya BykhovaALILOU DIgital LTD

In-app purchases

None

Sleep Timer

No in-app purchases

2 purchases

WakeZen

Subscriptions2
  • WakeZen Pro Monthly$4.991 Month
  • WakeZen Pro Yearly$24.991 Year

Questions

Is Sleep Timer free?
Sleep Timer is free to download, with no in-app purchases.
Is WakeZen free?
WakeZen is free to download, with in-app purchases available.
Do Sleep Timer or WakeZen have ads?
Neither Sleep Timer nor WakeZen shows ads.

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