Comparison

Seconds Interval Timer vs F1T

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

F1T

This interval timer helps you manage work and rest periods for various fitness routines like HIIT, circuit training, and boxing. It offers customizable intervals, voice prompts, and workout history tracking, working in the background with a clear display.

Highlights
  • Customizable work and rest intervals
  • Full-screen, bright display
  • Works in background with locked screen
  • Voice prompts and sound alerts
  • Workout history tracking
  • Templates for HIIT, Tabata, EMOM, AMRAP
Read full description

Perfect for individual or group use, whether at home, on the track, or in the gym. Welcome to this easy-to-use app that helps you keep track of your work and rest periods during workouts. This interval timer will be an invaluable tool for you, whether you're doing HIIT workouts with high-intensity intervals, cycling, running, boxing, exercising, or stretching. It’s designed to help you manage intense exercise periods and rest intervals, making it perfect for optimizing your HIIT training and other fitness routines. SIMPLE AND USEFUL INTERVAL TIMER - Easy to use and understand - Bright, full-screen display with a font that's easily visible from a distance, even on small screens - Works in the background while you use other apps - Pause your workout anytime - No interruptions: the timer continues running even with a locked screen - Has a battery-saving mode for low battery situations ADVANCED CUSTOMIZATION - Customize all your intervals exactly the way you need for your specific workout - Adjust warm-up,exercise, rest, recovery, and cooldown intervals to fit your workout plan - Easily change the number of sets and cycles to match your fitness level - Switch between intervals smoothly during your workout - Includes templates for different training methods like HIIT, EMOM, AMRAP, Tabata, and Circuit Training TRACK AND CUSTOMIZE YOUR WORKOUTS - Provides voice prompts for interval names and upcoming interval warnings. - Offers various sound alerts and voice notifications for intervals. - Tracks your workout history and intensity levels. OPTIMIZE ALL OF YOUR ACTIVITIES + Tabata timer + Boxing round timer + HIIT training + Crossfit + Circuit training + Fitness routines + Home workouts + Calisthenics circuit timer + Yoga timer and more! Download now and take your workouts to the next level! The app offers a free trial with an optional annual subscription. After the trial, a yearly subscription will automatically start and be charged to your Apple account. The subscription renews automatically unless you turn off auto-renewal at least 24 hours before the current period ends. You can’t cancel during the current period, but you can manage and turn off auto-renewal in your Apple Account Settings. Any unused portion of the free trial will be forfeited upon subscription purchase. Privacy Policy: https://branched-chameleon-c9e.notion.site/Privacy-Policy-157da911d0128022b579f38948d41609?pvs=4 Terms of Use: https://branched-chameleon-c9e.notion.site/EULA-157da911d012800382d9c4010274c30b?pvs=44

Screenshots

Seconds Interval Timer4 screens
F1T4 screens

Verdict

The call

The clearest difference is ratings volume: Seconds Interval Timer at 24K against F1T's 1. Seconds Interval Timer also leads on device support (3 vs 1). F1T's advantage is update cadence (every 6 days vs monthly) and rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model 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 F1T sells 8 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

F1T holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Seconds Interval Timer ships an update monthly, F1T every 6 days. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.

Scorecard4 real differences · 6 level
Seconds Interval Timer versus F1T: the parameters behind the verdict, then further details
ParameterSeconds Interval TimerF1T
PriceFreeFree
Rating4.7 (24K ratings)5.0 (1 ratings) — better
Positive reviews75.0% of reviews—
Number of ratings24K — better1
Update frequencyMonthlyEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size95 MB34 MB
Age rating4+4+
DeveloperRunloop LtdTymofii Tymofieiev

Customer experience

Seconds Interval Timer

All ratings23,662 ratings
Positive93.0%
Neutral1.9%
Negative5.2%
Written reviews1,237 reviews
Positive75.0%
Neutral6.1%
Negative18.8%

F1T

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

F1T

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Seconds Interval Timer

One-time1
  • Advanced Version$7.99
8 purchases

F1T

Subscriptions6
  • Unlimited access (PRO)$1.997 Days
  • Unlimited access (PRO)$2.297 Days
  • Unlimited access (PRO)$4.991 Month
Show 3 more
  • Unlimited access (PRO)$6.991 Month
  • Unlimited access (PRO)7 Days trial$17.991 Year
  • Unlimited access (PRO)7 Days trial$29.991 Year
One-time2
  • Free Lifetime PROFree
  • Lifetime PRO$29.99

Questions

Is Seconds Interval Timer free?
Seconds Interval Timer is free to download, with in-app purchases available.
Is F1T free?
F1T is free to download, with in-app purchases available.
Which has better reviews, Seconds Interval Timer or F1T?
F1T is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while F1T averages 5.0 from 1 ratings.
Do Seconds Interval Timer or F1T have ads?
Neither Seconds Interval Timer nor F1T shows ads.
Which is updated more often, Seconds Interval Timer or F1T?
Seconds Interval Timer ships an update monthly, and F1T every 6 days. Most recently, Seconds Interval Timer was updated on September 25, 2026 and F1T on September 10, 2026.

Other comparisons