Comparison

HIIT (Watch) Timer vs Kapp

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

Head to head
About

HIIT (Watch) Timer

This app offers a straightforward interval timer designed for Apple Watch, iPhone, and iPad. It features a clean interface, live heart rate monitoring, haptic feedback, and detailed workout summaries, seamlessly integrating with the Health app.

Highlights
  • Apple Watch independent app
  • Live heart rate monitoring
  • Haptic feedback and audio alerts
  • Workout summary with calories and heart rate
  • Health app integration
  • Customizable intervals (warm-up, cooldown, rest)
  • Complications for quick access
Features
Read full description

A simple HIIT app specifically engineered for Apple Watch. It also provides a simple HIIT timer for iPhone/iPad. With easy setup, clean display, live heart rate, haptic feedback, workout summary and completely independent Apple Watch app experience, your interval workouts will undoubtedly be fun. The workout also adds up to the move and exercise rings on Apple Watch. Features: • Super easy setup Digital crown makes setting intervals a breeze. The app remembers your previous settings. • Clean display Large fonts, vivid colors, live heart rate • Workout summary Calories burned, average and max heart rate, total time • Health app integration Workouts are saved to the Health app • Audio alerts and haptic feedback Subtle haptic feedback guiding you through the intervals. You can also set audio beep alerts if you want. • Runs in background A completely independent Apple Watch app experience • Complications They show the time left for the workout. Also, they are a quick way to launch the app. • More settings + Warm up interval + Cooldown interval + Last rest interval + Halfway alert + 8 sec warning during rest + Interval change warning (when 5 seconds are remaining) • Extra A simple HIIT timer for iPhone/iPad * Note: Though this app is primarily designed for Apple Watch, it also provides a simple iPhone/iPad HIIT timer.

About

Kapp

This app helps you strengthen your pelvic floor with guided exercises and progress tracking. It offers customizable workouts, achievement milestones, and privacy-focused data management. Improve bladder control, intimate health, and overall wellbeing through consistent practice.

Highlights
  • Live heart rate monitoring
  • 30+ customizable exercises
  • Progress insights and summaries
  • Streak and daily goal tracking
  • Smart reminders
  • Privacy-first data handling
  • Universal app support
Features
Read full description

Stronger Pelvic Floor. Better Confidence. One Simple Habit at a Time. Kapp is your private, effective partner for pelvic floor strength — whether for better bladder control, intimate health, postpartum recovery, or overall wellbeing. POWERFUL FEATURES • Live Heart Rate Monitoring – Real-time updates during exercises • 30 Achievement Milestones – Unlock rewards for sessions, streaks & goals • 30+ Customizable Exercises – Beginner to advanced, or build your own • Comprehensive Summaries – Heart rate graphs, calories, performance stats • Progress Insights – Weekly stats, longest session, completion rate, most active day • Streak & Daily Goal Tracking – Stay consistent with gentle motivation • Smart Reminders – Custom times, sounds & repeat schedules • Beautiful Themes & Accessibility – Personalize your experience PRIVACY FIRST Your data stays on your device. We never collect, track or share personal information. Your journey is yours alone. UNIVERSAL & SYNCED Seamless across iPhone, iPad, Apple Watch & Apple TV. Progress syncs privately via iCloud. ONE-TIME PURCHASE. LIFETIME ACCESS. No subscriptions. No ads. No hidden costs. All features included — forever. CONTINUOUSLY IMPROVED Regular free updates bring new exercises, features & refinements. Start building strength & confidence today. Download Kapp now.

Screenshots

HIIT (Watch) Timer3 screens
Kapp4 screens

Verdict

The call

The clearest difference is rating: HIIT (Watch) Timer at 4.2 against Kapp's 2.5. HIIT (Watch) Timer also leads on in-app purchases (none vs 2) and review sentiment (80% vs 60%). Kapp's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, monetization model 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

HIIT (Watch) Timer costs $3.99 and Kapp $3.99 up front. Kapp sells 2 one-off in-app purchases. HIIT (Watch) Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

HIIT (Watch) Timer holds the better App Store score, 4.2 against 2.5. That said, the two scores are not equally well evidenced: HIIT (Watch) Timer has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 80% of HIIT (Watch) Timer's written reviews are positive against 60% of Kapp's.

UpkeepUpdate frequency

HIIT (Watch) Timer ships an update every 2 months, Kapp every 3 weeks. The most recent releases landed on October 10, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 4 level
HIIT (Watch) Timer versus Kapp: the parameters behind the verdict, then further details
ParameterHIIT (Watch) TimerKapp
Price$3.99$3.99
Rating4.2 (12 ratings) — better2.5 (2 ratings)
Positive reviews80.0% of reviews — better60.0% of reviews
Number of ratings12 — better2
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple TV, Apple Watch — better
Requires iOS16.0 — better26.0
Further details — not scored
Size44 MB49 MB
Age rating4+12+
DeveloperRhythmicWorksVlad Gachi

Customer experience

HIIT (Watch) Timer

All ratings12 ratings
Positive83.3%
Neutral8.3%
Negative8.3%
Written reviews10 reviews
Positive80.0%
Neutral10.0%
Negative10.0%

Kapp

All ratings2 ratings
Positive0.0%
Neutral50.0%
Negative50.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

None

HIIT (Watch) Timer

No in-app purchases

2 purchases

Kapp

One-time2
  • Tiny Donation$0.99
  • Small Donation$1.99

Questions

Is HIIT (Watch) Timer free?
HIIT (Watch) Timer costs $3.99, with no in-app purchases.
Is Kapp free?
Kapp costs $3.99, and also offers in-app purchases.
Which has better reviews, HIIT (Watch) Timer or Kapp?
HIIT (Watch) Timer is rated higher. HIIT (Watch) Timer averages 4.2 out of 5 from 12 ratings, while Kapp averages 2.5 from 2 ratings.
Do HIIT (Watch) Timer or Kapp have ads?
Neither HIIT (Watch) Timer nor Kapp shows ads.
Which is updated more often, HIIT (Watch) Timer or Kapp?
HIIT (Watch) Timer ships an update every 2 months, and Kapp every 3 weeks. Most recently, HIIT (Watch) Timer was updated on October 10, 2026 and Kapp on September 23, 2026.

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