Comparison

Intervals Pro vs Smart Alarm Clock for Watch

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

Head to head
About

Intervals Pro

Create and follow custom interval training routines for various fitness activities. This app offers extensive customization for intervals, alerts, and goals, with seamless integration for Apple Watch and Apple Health.

Highlights
  • Highly customizable intervals (time/distance)
  • Spoken interval names and prompts
  • Standalone Apple Watch workouts
  • Workout history with Apple Health
  • Home screen widgets for quick launch
  • Bluetooth heart rate monitor support
  • Siri Shortcuts integration
Features
Read full description

Custom Interval Training at its best for iPhone, Apple Watch and iPad. Featured by Apple and recommended by fitness instructors, personal trainers, marathon runners, and coaches. Let Intervals Pro guide you through any type of interval workout: HIIT, running, strength training, yoga, stretching, circuit training, boxing, MMA, elliptical, rehabilitation, meditation, 7-minute workouts, and many more. FEATURED BY • Apple - App of the Day in 132 Countries • Apple - Workout with Apple Watch, Quick HIIT Workouts • Women's Health Magazine • COACH Magazine • SixColors.com HIGHLIGHTS • Highly Customizable • Home Screen Widgets to quickly launch timers • Spoken interval names and prompts • Customizable alert sounds • Standalone Apple Watch workouts. Leave your iPhone at home! • Workout History using Apple Health data • View an Apple Watch workout live on your iPhone! • Run in the background with the screen locked • Play music or podcasts using the app of your choice • Bluetooth heart rate monitor support for Apple Watch or iPhone • Fill your Activity Rings • Siri Shortcuts • Share timers with friends • Time and Distance Goals • Running Pace and Heart Rate Targets • Auto pause and resume • Send completed workouts to Strava • Confetti! PERSONALIZE YOUR WORKOUT • Customize the Name, Duration, Alert, and Color for each interval • Customize Alert Sounds and Voice Prompts to guide you through your workout • Set a Countdown Alert and vibrations when the interval is about to end • Optional halfway alert • Set target heart rate ranges for each interval • Set time and distance goals FLEXIBLE INTERVAL DURATIONS • Time based (e.g., 45 seconds) • Distance-based (e.g., 0.5 MI or KM) • Count up intervals keep running until your ready for the next interval • Estimated time or distance. Count down time or distance to zero and then continue the interval, counting up until you're ready to move on. THE BEST APPLE WATCH INTERVAL TIMER • Leave your phone at home with our standalone Apple Watch app • Control your music or podcasts on the "Now Playing" screen • View an Apple Watch workout live on your iPhone • Alert Sounds and Voice Prompts to guide you through your workout • Configurable haptic alert countdown that taps you on the wrist when the interval is ending • Track heart rate, calories, distance, and pace • Route tracking for running, walking, and cycling • Workouts contribute to the Apple Watch Activity Rings WORKOUT HISTORY USING APPLE HEALTH • Intervals Pro has the best Apple Health integration of any interval training app • Track heart rate, calories, distance, and pace • Route tracking for running, walking, and cycling • Detailed stats for every interval • All your data is safely stored in Apple Health GREAT FOR RUNNING AND CYCLING • Interval duration can be set to either a specified time or distance • Display current pace, pace for the interval, or pace for the entire run • Configure heart rate ranges per interval • Analyze each interval of your run in the workout history MULTIPLE VOICES AND LANGUAGES • Select the language and voice to use for all spoken alerts. • Spoken alerts are localized to 10 languages. Chinese (simplified), Danish, Dutch, French, German, Italian, Norwegian, Polish, Spanish, and Swedish. Get Intervals Pro today, and your workouts will never be the same! SUBSCRIPTION INFO Intervals Pro is free to download and has a free timer. To create multiple timers and unlock all the features of the app, you may choose between a monthly or yearly auto-renewing subscription option. Upon confirmation of the purchase, payment will be charged to your credit card through your iTunes account. Subscription renews automatically unless canceled at least 24 hours before the end of the subscription period. Subscriptions can be managed and auto-renewal turned off in Account Settings in the App Store app. Privacy Policy and Terms of Service: https://intervalspro.com/privacy-policy.html

About

Smart Alarm Clock for Watch

This app uses your Apple Watch to wake you gently during your lightest sleep cycle. It offers a bedtime reminder and can function independently of your iPhone, even in Do Not Disturb mode. Wake up feeling more rested without disturbing your partner.

Highlights
  • Wakes you in lightest sleep cycle
  • Gentle haptic alarms
  • Bedtime reminder
  • Works independently of iPhone
  • Customizable voice alarms
  • Integrates with Apple Health
Features
Read full description

Smart alarm clock + Bedtime reminder that wakes you in the lightest sleep cycle using Apple Watch. Using Haptics to wake you so that it is gentle on you and it does not disturb your partner. Developed by the same developer for the top-ranking SleepMatic Sleep Tracker app. Going to bed and waking up at the same time every day are keys to healthy sleep. Smart Alarm wakes you in the lightest sleep cycle so you feel rested and relaxed. Smart Alarm uses Apple Watch's motion and heart rate to analyze your sleep cycle. - Tap your wrist on Apple watch when the alarm goes off, no disturbance to your partner. - Bedtime reminder - Work independent without iPhone or even Airplane Mode - Automatically measure your waking pulse - Record your own voice as an alarm - No need to have complication on watch face like the other app - Haptic and sound work even in "Do Not Disturb" mode - Wake up/ Bedtime timer on phone and Apple Watch complication to remind you the time left to wake up and bedtime This app integrates with the Apple Health app to monitor your heart rate and movement during sleep in order to wake you up at the appropriate time. How to use: 1. Remember to set the alarm every night, alarm is NOT recurring. (you can one-click set alarm from the Bedtime reminder). 2. Make sure your Apple Watch is unlocked when going to bed 3. Also, make sure the background app refresh for Smart Alarm is on. For support, force touch on Apple Watch screen, and click "Send Log". More help docs are at https://support.vimo.co/portal/kb/mobile-apps/smartalarm.

Screenshots

Intervals Pro4 screens
Smart Alarm Clock for Watch4 screens

Verdict

The call

The clearest difference is review sentiment: Intervals Pro at 85% against Smart Alarm Clock for Watch's 17%. Intervals Pro also leads on price (Free vs $2.99) and rating (4.8 vs 4.2). Smart Alarm Clock for Watch's advantage is in-app purchases (none vs 8) and chart position (#103 vs unranked). On update cadence, 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

Intervals Pro is free to download; Smart Alarm Clock for Watch costs $2.99 up front. Intervals Pro sells 8 in-app purchases, starting at $2.99 per month. Smart Alarm Clock for Watch asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Intervals Pro holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Intervals Pro has 14K ratings behind it against 372, so its average is the more settled of the two. Written reviews point the same way: 85% of Intervals Pro's written reviews are positive against 17% of Smart Alarm Clock for Watch's.

UpkeepUpdate frequency

Intervals Pro ships an update weekly, Smart Alarm Clock for Watch every 5 days. The most recent releases landed on November 5, 2026 and November 2, 2026 respectively.

Scorecard8 real differences · 3 level
Intervals Pro versus Smart Alarm Clock for Watch: the parameters behind the verdict, then further details
ParameterIntervals ProSmart Alarm Clock for Watch
PriceFree — better$2.99
Rating4.8 (14K ratings) — better4.2 (372 ratings)
Positive reviews84.5% of reviews — better16.9% of reviews
Number of ratings14K — better372
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#103 — better
DevicesiPhone, iPad, Apple WatchiPhone, iPod, Apple Watch
Requires iOS17.513.0 — better
Further details — not scored
Size66 MB14 MB
Age rating4+4+
DeveloperIntervals, LLCVimo Labs Inc.

Customer experience

Intervals Pro

All ratings13,710 ratings
Positive95.2%
Neutral1.7%
Negative3.2%
Written reviews1,097 reviews
Positive84.5%
Neutral4.8%
Negative10.7%

Smart Alarm Clock for Watch

All ratings372 ratings
Positive80.1%
Neutral1.1%
Negative18.8%
Written reviews83 reviews
Positive16.9%
Neutral2.4%
Negative80.7%

User reviews

Intervals Pro

From 14K App Store ratings

What we love

  • 👍 Customizable timers and intervals
  • 🚀 Seamless Apple Watch integration
  • 💪 Helps with fitness goals and training
  • 🔍 Detailed workout tracking and analytics
  • 🎨 Intuitive and user-friendly interface

Room to improve

  • 🐛 Occasional sync and connectivity issues
  • 🔍 Lack of clear guidance and documentation
  • 💰 Paid version required for full functionality

Smart Alarm Clock for Watch

From 372 App Store ratings

What we love

  • ✅ Works reliably for some users
  • 🔋 Battery efficient - no iPhone connection needed at night
  • 🎯 Gentle vibration alarm won't disturb others
  • 💡 Smart sleep cycle detection concept
  • ⚙️ Simple, minimalist design

Room to improve

  • 🐛 Alarm frequently fails to work or goes off at wrong times
  • ⏰ Wakes at beginning of time window, not optimal sleep stage
  • 📱 Doesn't install watch app properly for many users
  • 🔌 Requires iPhone nearby despite claims of independence
  • 🚫 No snooze functionality

Bugs and requests

Intervals Pro

Reported bugs

2 issues
  • Workout data not syncing correctly
  • App crashes or freezes on certain devices

Requested features

3 requests
  • More customization options for interval displays
  • Ability to batch delete or manage workout history
  • Integration with more third-party fitness apps

Smart Alarm Clock for Watch

Reported bugs

16 issues
  • Alarm goes off at beginning of time window instead of optimal sleep stage
  • Watch app fails to install or appears missing
  • Alarm doesn't trigger at all
  • Alarm triggers 30 minutes early randomly
  • App crashes when attempting to set alarm
Show 11 more
  • Language settings change to Chinese/Japanese unexpectedly
  • Incompatibility with watchOS 5+ and Apple Watch Series 4+
  • Vibration too weak to wake users
  • Backup iPhone alarm doesn't function
  • App disappears from watch after installation
  • Complications not showing on watch face
  • Error accessing Health app permissions
  • App fails in airplane and theater modes
  • Unresponsive support contact system
  • Light touch dismisses alarm unintentionally
  • No data displayed in phone app despite permissions granted

Requested features

9 requests
  • Snooze functionality
  • Notification mirroring to Apple Watch
  • Recurring/automatic alarm setup
  • Data writing to Health app
  • Complication visibility on watch face
Show 4 more
  • Ability to set alarm from iPhone app
  • Improved haptic feedback strength
  • Better sleep stage analysis
  • Support for Do Not Disturb mode

In-app purchases

8 purchases

Intervals Pro

Subscriptions2
  • Monthly Membership7 Days trial$2.991 Month
  • Yearly Membership7 Days trial$19.991 Year
One-time6
  • Generous Tip$0.99
  • Awesome Tip$1.99
  • Massive Tip$4.99
Show 3 more
  • Amazing Tip$9.99
  • Intervals Pro (Legacy)$69.99
  • Lifetime Access$69.99
None

Smart Alarm Clock for Watch

No in-app purchases

Questions

Is Intervals Pro free?
Intervals Pro is free to download, with in-app purchases available.
Is Smart Alarm Clock for Watch free?
Smart Alarm Clock for Watch costs $2.99, with no in-app purchases.
Which has better reviews, Intervals Pro or Smart Alarm Clock for Watch?
Intervals Pro is rated higher. Intervals Pro averages 4.8 out of 5 from 14K ratings, while Smart Alarm Clock for Watch averages 4.2 from 372 ratings.
Do Intervals Pro or Smart Alarm Clock for Watch have ads?
Neither Intervals Pro nor Smart Alarm Clock for Watch shows ads.
Which is updated more often, Intervals Pro or Smart Alarm Clock for Watch?
Intervals Pro ships an update weekly, and Smart Alarm Clock for Watch every 5 days. Most recently, Intervals Pro was updated on November 5, 2026 and Smart Alarm Clock for Watch on November 2, 2026.

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