Comparison

Pace Calculator vs Interval Timer

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

Head to head
About

Pace Calculator

This running app helps users calculate target paces for races and training. It features a smart chat assistant for quick queries, unit conversion, and detailed split times. Plan your runs and achieve your personal best with instant, clear results.

Highlights
  • Smart chat assistant for pace queries
  • Calculate pace from distance and time
  • Kilometer and mile support
  • Unit conversion (km/miles, min/km, min/mile)
  • Detailed split times
  • Instant pace and speed results
Features
Read full description

Pace Calculator is the essential tool for runners of all levels. Whether you're training for your first 5K or aiming for a marathon PR, Pace Calculator helps you plan and achieve your running goals. Features: Smart Chat Assistant Ask questions in plain English! Just type "What pace for 5km in 20 minutes?" or "How long for a marathon at 5:30 pace?" and get instant answers. Try follow-up questions like "in miles?" to convert your results. Pace Calculator - Enter your target distance and time to find the exact pace you need - Supports kilometres and miles - Pre-set distances: 5K, 10K, half marathon, marathon, and more Unit Converter - Convert between kilometres and miles - Convert pace between min/km and min/mile - Convert pace to speed and vice versa Split Times - See detailed kilometre or mile split times for your run - Perfect for pacing strategy during races Quick Results - Instant calculations as you adjust values - See both pace and speed simultaneously - Clear, easy-to-read display Perfect for: - Training pace planning - Race strategy and goal setting - Converting between units - Understanding what pace you need for your target time Download Pace Calculator today and take the guesswork out of your running goals!

About

Interval Timer

Organize your running and high-intensity interval training sessions with ease. Quickly set up custom time intervals for running, walking, warm-ups, and cool-downs. Receive voice and vibration notifications for interval changes, and enjoy background music playback.

Highlights
  • Intuitive design
  • Customizable time intervals
  • Warm-up and cool-down timers
  • Voice and vibration notifications
  • Background music support
  • Foreground/background operation
Features
Read full description

Interval Run is a running interval timer for iPhone and Apple Watch. Create run/walk intervals, sprint sessions, and HIIT workouts in seconds. Train with voice announcements and haptic cues, control workouts from Apple Watch, save sessions to Apple Health, and track your workout history. Choose from 25+ ready-made running workouts or build your own. Follow intervals from the Lock Screen and Dynamic Island, and focus on your run. 25+ READY-MADE RUNNING WORKOUTS • Explore run/walk workouts, running intervals, sprints, hill repeats, tempo runs, fartlek sessions, ladders, pyramids, and more • Find workouts for speed, endurance, recovery, and different training goals • Start any workout immediately or customize it to match your training • Save your favorites to My Workouts for quick access BUILD YOUR OWN INTERVAL WORKOUT • Create simple run/walk intervals or advanced multi-step workouts • Add warm-up, running, walking, recovery, rest, and cool-down sections • Set a custom duration for every step • Repeat intervals and complete workout blocks • Add custom cues to guide you through each workout step • Build sprint, HIIT, cardio, and structured running sessions • Save multiple workouts and reuse them anytime • Preview the complete workout before you start VOICE & HAPTIC INTERVAL CUES • Hear clear voice announcements at every interval transition • Feel haptic cues when it’s time to run, walk, recover, or rest • Keep your workout active while your iPhone is locked or the app is in the background • Follow your current interval from the Lock Screen and Dynamic Island with Live Activities • Listen to music, podcasts, or audiobooks while you train RUN WITH APPLE WATCH • Sync workouts to Apple Watch • Start, pause, and control workouts directly from your wrist • Run phone-free with your workouts ready on Apple Watch • Follow interval progress without repeatedly checking your phone • Track heart rate, distance, and active energy during your workout • Get haptic interval cues directly on your Watch • Save completed workouts to Apple Health TRACK YOUR TRAINING • Browse completed workouts in calendar and history views • Review workout duration, intervals, distance, and active energy • Look back at your running and interval training over time • Share your workout results • Export and restore backups of your workout data MADE FOR RUNNERS WHO TRAIN WITH INTERVALS Whether you’re starting with beginner run/walk intervals, adding speed work to your weekly training, preparing for a 5K or another race, or creating a challenging HIIT session, Interval Run keeps every interval clear from start to finish. Use it as a simple run/walk timer, a running interval timer for speed training, an Apple Watch interval timer for phone-free workouts, or a flexible workout builder for more advanced structured sessions. From beginner run/walk workouts to sprints, tempo runs, hill repeats, fartlek training, and custom multi-step sessions, Interval Run adapts to the way you train. Start with one of 25+ ready-made workouts or create your own. Interval Run handles the timing so you can focus on your training. Some features shown, including the full workout library, advanced workout creation, multiple saved workouts, and full workout history, require Interval Run Pro. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Pace Calculator4 screens
Interval Timer4 screens

Verdict

The call

The clearest difference is review sentiment: Pace Calculator at 68% against Interval Timer's 21%. Pace Calculator also leads on update cadence (every 5 days vs every 3 months) and iOS requirement (16.0 vs 26.0). Interval Timer's advantage is ads (none vs shown) and rating (4.5 vs 4.3). On price, in-app purchases, 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

Both are free to download. Pace Calculator sells 1 one-off in-app purchase and Interval Timer sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Interval Timer holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Interval Timer has 534 ratings behind it against 39, so its average is the more settled of the two. Written reviews complicate that: 68% of Pace Calculator's written reviews are positive against 21% of Interval Timer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Pace Calculator ships an update every 5 days, Interval Timer every 3 months. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

Scorecard6 real differences · 4 level
Pace Calculator versus Interval Timer: the parameters behind the verdict, then further details
ParameterPace CalculatorInterval Timer
PriceFreeFree
Rating4.3 (39 ratings)4.5 (534 ratings) — better
Positive reviews67.7% of reviews — better21.1% of reviews
Number of ratings39534 — better
Update frequencyEvery 5 days — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS16.0 — better26.0
Further details — not scored
Size7 MB16 MB
Age rating4+4+
DeveloperRicky YimRoma Sosnovsky

Customer experience

Pace Calculator

All ratings39 ratings
Positive79.5%
Neutral7.7%
Negative12.8%
Written reviews31 reviews
Positive67.7%
Neutral9.7%
Negative22.6%

Interval Timer

All ratings534 ratings
Positive86.7%
Neutral3.4%
Negative9.9%
Written reviews95 reviews
Positive21.1%
Neutral8.4%
Negative70.5%

Bugs and requests

Pace Calculator

Not enough reviews yet to summarise bugs or requests.

Interval Timer

Reported bugs

4 issues
  • Timer resets or freezes during workout
  • Prompts not working when phone is locked or in pocket
  • Unexpected interval changes or duration changes
  • Compatibility issues with music playback

Requested features

6 requests
  • Option to pause/resume timer
  • Larger time remaining display
  • Apple Watch app
  • Ability to play audio prompts even with screen off
  • More interval options (run/walk/jog)
Show 1 more
  • Congratulatory audio cue at the end

In-app purchases

1 purchases

Pace Calculator

One-time1
  • Remove Ads$1.99
3 purchases

Interval Timer

Subscriptions2
  • Interval Run Pro Monthly$2.991 Month
  • Interval Run Pro Annual7 Days trial$19.991 Year
One-time1
  • Full Version$2.99

Questions

Is Pace Calculator free?
Pace Calculator is free to download, with in-app purchases available.
Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Which has better reviews, Pace Calculator or Interval Timer?
Interval Timer is rated higher. Pace Calculator averages 4.3 out of 5 from 39 ratings, while Interval Timer averages 4.5 from 534 ratings.
Do Pace Calculator or Interval Timer have ads?
Pace Calculator shows ads; Interval Timer does not.
Which is updated more often, Pace Calculator or Interval Timer?
Pace Calculator ships an update every 5 days, and Interval Timer every 3 months. Most recently, Pace Calculator was updated on October 8, 2026 and Interval Timer on October 14, 2026.

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