Comparison

Seconds 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 Interval Timer

This app provides a versatile interval timer for various workout types like Tabata, HIIT, and circuit training. It features a clear, full-screen display, customizable alerts, and background operation. Users can also utilize a stopwatch and countdown timer, with integration for Apple Health.

Highlights
  • Full-screen colored display
  • Templates for HIIT, Tabata, Circuit Training
  • Voice and audio alerts
  • Music assignment per interval
  • Background operation
  • Apple Health integration
  • Stopwatch and countdown timer
Features
Read full description

Seconds 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 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 reads your body measurements and year of birth from Health to estimate calories burned. FREE TO TRY, ONE PAYMENT TO UNLOCK - Everything is available from the first launch. Build any timer and run it. - Each timer locks after you run it once. A single in-app purchase removes the lock on every timer you make. SECONDS AND SECONDS PRO - Seconds Pro is the same app, paid once up front, with nothing to unlock. 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 professional and easy-to-use interval timer allows for customizable circuit training plans with voice prompts and background operation. It supports music integration and Apple Health, making it ideal for various fitness routines.

Highlights
  • Customizable training plans
  • Smart voice prompts
  • Automatic music playback
  • Background operation
  • Apple Health integration
  • Apple Watch support
Features
Read full description

Congratulations! You have found the most professional and easy-to-use Interval Timer in App Store. This is different from those with complex operation or gaudy functions. It is easy to set up all kinds of circuit training plans. You can custom your exercise library, adjust theirs duration flexibly, and the dial interface is the settings page that allows you to complete most of the normal operations. WYSIWYG! Next time you work out, maybe you’d like to try this practical voice coach fitness app! This app also has more powerful and practical functions. It includes warm-up, cold-down, recover and work out sessions, and also theirs duration can be changed flexibly. It can change the music automatically during your workout if you have subscribed the apple music service. This app is suitable for personal trainers, fitness enthusiasts, bodybuilders, athletes, home exerciser and etc. Use with HIIT, Tabata, weight training, kettlebells, HIIT running, sprints, HIIT treadmill, and any interval fitness training. Help to establish a scientific, systematic, based on your characteristics and personalized training program and maximize your workout are all we can do. Depends on no equipment and exercise anywhere or anytime! Hope you enjoy it. AT A GLANCE: + Easy to customize you training plan + Smart voice prompts + Automatically play and change music + prompts the next workout name + Fully customizable times, cycles and repeats + Can run in the background + Clean and smart design + Great on iphone X + Support Siri ("Hey Siri, start a workout using Fit Now") + Support Apple Watch, Standalone Apple Watch workouts. Leave your iPhone at home! + Apple Health integration MORE INFORMATION: • Easy Customize Touch what you want to change to set work time, rest time, cycles, repeats, warm up time and cooldown time. Stopwatchs can be set in 1 second increments up to 60 minutes! • Customize your training plan You can custom every single attribute like moves and its duration, and accordingly the voice system will prompts you what the next move is. • Smart voice prompts system this app will alerts you when it is time to work, rest, warmup or cooldown, even when this app is running in the background. You can preset your workout names for per cycle, and this app will call out them while the timer begins working. You can turn off the voice prompts, and choose the vibration mode. • Automatically play music this app allows you to set different playlists for each of the work duration, rest duration, warm up duration and cool down duration, and is easy to change the currently playing song in iPhone control center. Or you can just choose any music app you like, this app supports multitasking. • Runs in the background When the timer starts working, you can lock screen and run it in the background, and have it play voice prompts. Once your training plan ends, it won't run in the background any more, in case of more battery drain.

Screenshots

Seconds Interval Timer4 screens
Interval Timer4 screens

Verdict

The call

The clearest difference is rating: Seconds Interval Timer at 4.7 against Interval Timer's 3.8. Seconds Interval Timer also leads on ratings volume (24K vs 28). Interval Timer's advantage is monetization model (free vs free with in-app purchases) and update cadence (weekly vs monthly). On price, review sentiment, ads and in-app purchases 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. Seconds Interval Timer sells 1 one-off in-app purchase and Interval Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Seconds Interval Timer holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 75% of Seconds Interval Timer's written reviews are positive against 67% of Interval Timer's.

UpkeepUpdate frequency

Seconds Interval Timer ships an update monthly, Interval Timer weekly. The most recent releases landed on October 18, 2026 and October 3, 2026 respectively.

Scorecard5 real differences · 5 level
Seconds Interval Timer versus Interval Timer: the parameters behind the verdict, then further details
ParameterSeconds Interval TimerInterval Timer
PriceFreeFree
Rating4.7 (24K ratings) — better3.8 (28 ratings)
Positive reviews74.6% of reviews — better66.7% of reviews
Number of ratings24K — better28
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPod, Apple Watch
Requires iOS18.011.0 — better
Further details — not scored
Size95 MB30 MB
Age rating4+4+
DeveloperRunloop Ltd宇超 朱

Customer experience

Seconds Interval Timer

All ratings23,711 ratings
Positive93.0%
Neutral1.9%
Negative5.2%
Written reviews1,272 reviews
Positive74.6%
Neutral6.4%
Negative19.0%

Interval Timer

All ratings28 ratings
Positive64.3%
Neutral14.3%
Negative21.4%
Written reviews15 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

Seconds Interval Timer

Reported bugs

2 issues
  • Timer sometimes stops working unexpectedly
  • Issues with restoring purchases on new devices

Requested features

5 requests
  • Ability to change beep/alert volume independently
  • Option to delay transition between intervals
  • Sync workouts across devices
  • More preset workout templates
  • Heart rate monitoring integration

Interval Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Seconds Interval Timer

One-time1
  • Advanced Version$7.99
1 purchases

Interval Timer

One-time1
  • UNLIMITED HIIT TIMER$3.99

Questions

Is Seconds Interval Timer free?
Seconds Interval Timer 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, Seconds Interval Timer or Interval Timer?
Seconds Interval Timer is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Interval Timer averages 3.8 from 28 ratings.
Do Seconds Interval Timer or Interval Timer have ads?
Neither Seconds Interval Timer nor Interval Timer shows ads.
Which is updated more often, Seconds Interval Timer or Interval Timer?
Seconds Interval Timer ships an update monthly, and Interval Timer weekly. Most recently, Seconds Interval Timer was updated on October 18, 2026 and Interval Timer on October 3, 2026.

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