Viberation Alarm vs SimpleClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Viberation Alarm
This app wakes you up using only your iPhone's vibration, ensuring silence. It's ideal for situations where making noise is not an option, like public transport or sleeping near a baby. Offers timer and alarm modes with visual countdowns and convenient shortcut features.
- Silent vibration-only alarms
- Timer and alarm modes
- Visual countdown progress ring
- Swipe to stop functionality
- Save frequent times as shortcuts
- Weekly repeat scheduling
- Live Activity & Dynamic Island support (Premium)
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Wake up surely, without a sound. VibeAlarm is an alarm app that wakes you up solely with your iPhone's vibration, making no sound at all. Whether on a train, in a library, working a night shift, or sleeping next to a baby - it wakes you up reliably even when you cannot make a sound. A long-selling app loved by users since its release in 2014. Recommended for: - Waking up silently on a train or in public places. - Waking up by vibration during night shifts or naps without disturbing others. - Waking up silently next to a sleeping baby. - Waking up discreetly during class or before a meeting. Key Features: [Timer & Alarm] Features both a Timer mode (countdown) and an Alarm mode (specific time). Switch with a single tap to suit your needs. Supports setting by the second. [Beautiful Countdown] Visually displays the remaining time with a glowing blue progress ring. Easy to check at a glance even in a dark room. [Swipe to Stop] Swipe to stop the alarm. Prevents you from going back to sleep caused by accidental button taps. You can freely adjust the slider position. [Shortcuts] Save frequently used times as shortcuts. 5 mins, 10 mins, 30 mins... Start instantly with one tap. [Schedule (Weekly Repeat)] 7:00 on weekdays, 8:30 on weekends - set different times for each day of the week. Automate your daily routine. [Live Activity & Dynamic Island] Check the remaining time from the Lock Screen or Dynamic Island. No need to open the app. (Premium version) Premium Version: - Completely ad-free. - Support for Live Activity & Dynamic Island. Background Operation: If you allow notifications, you will receive vibration notifications even if you close the app in the background. If you leave the app open on the screen, the vibration will work reliably even in Do Not Disturb mode. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SimpleClock
A customizable clock app designed for studying, offering a clean interface with no ads or charges. Personalize the background, font, and text color, and utilize built-in stopwatch and timer functions. Widgets are now available for enhanced convenience.
- Customizable clock appearance
- No ads or charges
- Stopwatch function
- Timer function
- Widget support
- Dark mode support
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Widgets are now available! Dark mode support, no ads, no charges. All functions are free of charge. - A simple clock that is perfect for studying! - You can change the background photo, font, and color of the text to customize the clock to your liking. - Stopwatch function and timer function! - Widgets* are now available! * To use the widgets, you need a device with iOS 14 or later or iPadOS 14 or later. -------------------------------------------- If you have any problems, please contact us using the support form below or "Help" in the app. https://support.reoapp.com/form Privacy Policy https://support.reoapp.com/clock/en Support email address support[at]reoapp.com *Please replace [at] with @ when sending email. --------------------------------------------
Screenshots
Verdict
The clearest difference is review sentiment: SimpleClock at 100% against Viberation Alarm's 52%. SimpleClock also leads on rating (5.0 vs 4.1) and ads (none vs shown). Viberation Alarm's advantage is ratings volume (55 vs 3). On price, update cadence and in-app purchases 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
Both are free to download. Viberation Alarm sells 2 in-app purchases, starting at $0.99 per month and SimpleClock sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
SimpleClock holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Viberation Alarm has 55 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 52% of Viberation Alarm's written reviews are positive against 100% of SimpleClock's.
Viberation Alarm ships an update every 11 days, SimpleClock every 2 weeks. The most recent releases landed on September 24, 2026 and June 4, 2026 respectively.
| Parameter | Viberation Alarm | SimpleClock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (55 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 51.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 55 — better | 3 |
| Update frequency | Every 11 days — better | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | SOTOCHA | Reo Shigeno |
Customer experience
Viberation Alarm
SimpleClock
In-app purchases
Viberation Alarm
- Premium Monthly Plan$0.991 Month
- ショートカットとスケジュールの無制限化、広告削除$2.99
SimpleClock
- Cheer for the developer$0.49
- Cheer for the developer$2.99
- Cheer for the developer$5.99
Questions
Is Viberation Alarm free?
Is SimpleClock free?
Which has better reviews, Viberation Alarm or SimpleClock?
Do Viberation Alarm or SimpleClock have ads?
Which is updated more often, Viberation Alarm or SimpleClock?
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