# Intervals Pro vs Smart Alarm Clock for Watch

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.

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.

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.

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.

## The numbers

| Metric | Intervals Pro | Smart Alarm Clock for Watch |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.8 (14K ratings)](https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938/reviews)** | [4.2 (372 ratings)](https://appshunter.io/ios/app/smart-alarm-clock-for-watch/id1347435975/reviews) |
| Number of ratings | **14K** | 372 |
| Positive reviews | **84.5% of reviews** | 16.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#103** |
| Size | 66 MB | 14 MB |
| Requires iOS | 17.5 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Intervals, LLC](https://appshunter.io/developer/331071662) | [Vimo Labs Inc.](https://appshunter.io/developer/726289669) |

## What reviewers say

### Intervals Pro

[App page](https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938)

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:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $2.99 | per month |
| Yearly Membership | $19.99 | per year |
| Generous Tip | $0.99 | one-time |
| Awesome Tip | $1.99 | one-time |
| Massive Tip | $4.99 | one-time |
| Amazing Tip | $9.99 | one-time |
| Intervals Pro (Legacy) | $69.99 | one-time |
| Lifetime Access | $69.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- Workout data not syncing correctly
- App crashes or freezes on certain devices

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/smart-alarm-clock-for-watch/id1347435975)

**Currently charting:** #103 Top Paid · Health & Fitness (US App Store)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ✅ 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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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

**Requested features**

- Snooze functionality
- Notification mirroring to Apple Watch
- Recurring/automatic alarm setup
- Data writing to Health app
- Complication visibility on watch face


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*