Comparison

Seconds Pro Interval Timer 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

Seconds Pro Interval Timer

This interval timer app is designed for high-intensity interval training (HIIT), Tabata, and circuit training workouts. It features a large, color-coded display, customizable interval names, and background operation. It also integrates with Apple Health to track your fitness data.

Highlights
  • Full screen colored display
  • Templates for HIIT, Tabata, Circuit Training
  • Speaks interval names and provides warnings
  • Assign music per interval
  • Runs in background
  • Share interval timers
  • Apple Health integration
Features
Read full description

Seconds Pro is an interval timer for HIIT, Tabata, EMOM, circuits and any workout built from timed intervals. It calls each interval out loud, keeps running with the screen off, and runs on iPhone, iPad and Apple Watch. Apple has featured it, and Joe Wicks, The Body Coach, has said it is the fitness app he uses more than any other. BUILD ANY WORKOUT - Start from a HIIT, Tabata or circuit template, or build a timer from scratch with sets, rounds and intervals of different lengths. - Chain timers into one compound timer, so a warm-up flows into the main set and then a cool-down. - Color-code every interval so you know what is coming before the beep. - Share a timer with a friend in one tap. HEAR IT, DON'T WATCH IT - Voice cues call out each interval by name and warn you before the next one starts. - Beeps and bells are there too if you would rather not be talked at. - Play your own music, per timer or per interval. Cues duck the music and it comes back up when they are done. - The timer keeps going in the background while you use other apps or the screen sleeps. ON THE GYM FLOOR - A full-screen, color-coded display you can read from across the room, in portrait or landscape. On iPad it uses the whole screen. - A lock button stops a stray tap from pausing your set. APPLE WATCH - Seconds Pro runs on the watch by itself, so the phone can stay in the locker. Timers you build on the phone sync to the wrist, and Quick Intervals builds a basic circuit on the watch itself. MORE TIMERS - A stopwatch that marks your best and worst laps. - A countdown timer with five preset durations (three on Apple Watch). APPLE HEALTH - Save workouts and mindful sessions to Health. With a heart rate monitor connected, Seconds Pro reads your body measurements and year of birth from Health to estimate calories burned. PAID ONCE, NOTHING TO UNLOCK - Seconds Pro is paid for up front. Every feature is included and every timer you make can be run as many times as you like. SECONDS AND SECONDS PRO - Seconds is the free version of this app. It has the same features, but each timer locks after one run until a single in-app purchase unlocks it. The two are separate products and a purchase in one does not carry over to the other. If you bought Seconds Pro, download Seconds Pro. If you bought the unlock in Seconds, download Seconds and use Restore Purchases.

About

Interval Timer

This app provides a simple and intuitive interval timer for workouts like HIIT, EMOM, and CrossFit. It features quick setup, guiding tones and colors, and background functionality to keep you focused on your training.

Highlights
  • Instant interval setup
  • Guiding tones and colors
  • HealthKit integration
  • Background functionality
  • Save and sync favorite timers
  • Preparation countdown
  • Pause and resume workouts
Features
Read full description

Discover the World’s Simplest Interval Timer — Bit Timer gets you off your phone or watch and into your workout in no time. ---------------- Key Features: Instant Setup — With a clean, no-frills design, set your work, rest, and repeat intervals in seconds. Guiding Tones and Colors — Navigate your workout with distinct tones and colors for each phase, keeping you on track effortlessly. Seamless HealthKit Integration (watchOS) — Automatically save your workouts and close those rings with Apple Health integration. Background Functionality — Keep your workout going even when your phone is locked or you’re using other apps, thanks to sound and haptics. Favorites Sync — Save and sync your favorite timers across iPhone, iPad, and Apple Watch for quick access. Why You’ll Love Bit Timer: - Quick Setup: Press and drag to set work, rest, and repeat intervals swiftly. - Preparation Countdown: Get ready with a 10-second countdown before your workout starts (3 seconds on Apple Watch). - Clear Audio Cues: Three distinct sounds indicate different stages of your workout, ensuring you stay on track. - Warning Tone: A countdown tone alerts you before the work phase begins. - Pause & Resume: Pause your workout anytime and resume right where you left off. - Easy Reset: Start from the beginning if interrupted, with a simple reset. ----------- Bit Timer promises to be the ‘World’s Simplest Interval Timer Ever.’ It is.” - Fast Company Design.* ----------- Privacy Policy: https://www.bittimer.com/privacy-policy Terms of Service: https://www.bittimer.com/terms-of-service End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Seconds Pro Interval Timer4 screens
Interval Timer4 screens

Verdict

The call

The clearest difference is price: Interval Timer at Free against Seconds Pro Interval Timer's $7.99. Seconds Pro Interval Timer's advantage is in-app purchases (none vs 4) and ratings volume (12K vs 534). On rating, review sentiment, update cadence and ads 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

Interval Timer is free to download; Seconds Pro Interval Timer costs $7.99 up front. Interval Timer sells 4 in-app purchases, starting at $1.99 per month. Seconds Pro Interval Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Seconds Pro Interval Timer against 4.7 for Interval Timer. That said, the two scores are not equally well evidenced: Seconds Pro Interval Timer has 12K ratings behind it against 534, so its average is the more settled of the two. Written reviews are what separate them: 80% of Seconds Pro Interval Timer's written reviews are positive against 77% of Interval Timer's.

UpkeepUpdate frequency

Seconds Pro Interval Timer ships an update fortnightly, Interval Timer every 4 weeks. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.

Scorecard5 real differences · 6 level
Seconds Pro Interval Timer versus Interval Timer: the parameters behind the verdict, then further details
ParameterSeconds Pro Interval TimerInterval Timer
Price$7.99Free — better
Rating4.8 (12K ratings) — better4.7 (534 ratings)
Positive reviews79.9% of reviews — better76.8% of reviews
Number of ratings12K — better534
Update frequencyFortnightly — betterEvery 4 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#10 — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS18.017.0 — better
Further details — not scored
Size94 MB15 MB
Age rating4+4+
DeveloperRunloop LtdPeiter Buick

Customer experience

Seconds Pro Interval Timer

All ratings12,056 ratings
Positive94.7%
Neutral1.9%
Negative3.4%
Written reviews1,499 reviews
Positive79.9%
Neutral6.0%
Negative14.1%

Interval Timer

All ratings530 ratings
Positive93.4%
Neutral1.7%
Negative4.9%
Written reviews185 reviews
Positive76.8%
Neutral7.0%
Negative16.2%

User reviews

Seconds Pro Interval Timer

From 12K App Store ratings

What we love

  • ⭐ Great updates
  • 🤖 Amazing voice prompts
  • 👍 Easy to use
  • 🎨 Highly customizable
  • 🔧 Versatile for various workouts

Room to improve

  • 🐛 Occasional bugs and glitches
  • 🔌 Music volume issues
  • 🔍 Complicated setup for some features
  • 🌐 Sync/sharing issues between devices
  • 🔇 Inconsistent audio cues

Interval Timer

From 534 App Store ratings

What we love

  • 🚀 Simple and easy to use
  • 👍 Elegant and intuitive design
  • ✨ Effective for interval training
  • 💯 Works great for the basics

Room to improve

  • 🔒 Paid app now requires subscription
  • 💰 Asking users to pay again after initial purchase
  • 🔇 Audio cues too quiet
  • ⏱️ Limited to 4 minutes of work time

Bugs and requests

Seconds Pro Interval Timer

Reported bugs

4 issues
  • Intervals randomly pausing or skipping
  • Music volume issues when launching the app
  • Inconsistent audio cues and countdown
  • Sync issues between devices

Requested features

6 requests
  • Ability to lock Apple Watch screen
  • Option to see more than just the next exercise
  • Fractional time settings (e.g. 7.74 seconds)
  • More voice/audio customization options
  • Improved sync between iPhone and iPad
Show 1 more
  • Calendar integration to track workouts

Interval Timer

Reported bugs

2 issues
  • Timer continues counting down even after app is closed
  • Issues with music volume reduction while app is in use

Requested features

4 requests
  • Ability to save and load custom workout routines
  • Option to increase work interval duration beyond 4 minutes
  • Apple Watch app integration
  • More sound effect options

In-app purchases

None

Seconds Pro Interval Timer

No in-app purchases

4 purchases

Interval Timer

Subscriptions3
  • Bit Timer Pro$1.991 Month
  • Bit Timer Pro$4.991 Year
  • Bit Timer Pro$9.991 Year
One-time1
  • Bit Timer Pro Lifetime$17.99

Questions

Is Seconds Pro Interval Timer free?
Seconds Pro Interval Timer costs $7.99, with no in-app purchases.
Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Which has better reviews, Seconds Pro Interval Timer or Interval Timer?
Seconds Pro Interval Timer is rated higher. Seconds Pro Interval Timer averages 4.8 out of 5 from 12K ratings, while Interval Timer averages 4.7 from 534 ratings.
Do Seconds Pro Interval Timer or Interval Timer have ads?
Neither Seconds Pro Interval Timer nor Interval Timer shows ads.
Which is updated more often, Seconds Pro Interval Timer or Interval Timer?
Seconds Pro Interval Timer ships an update fortnightly, and Interval Timer every 4 weeks. Most recently, Seconds Pro Interval Timer was updated on September 24, 2026 and Interval Timer on September 17, 2026.

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