Comparison

Seconds Interval Timer vs Timer Hiit

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

Timer Hiit

Features
Read full description

Introducing Hiit Timer, the latest workout timer app designed to effortlessly guide you through your Hiit, Tabata, Circuit Training workouts, or any customized plan tailored just for you. Timer Mode: + Supports standard workout modes with consistent training times for each set. + Customize your own timer settings for different workout sessions. + Save multiple workouts for future use. INTERVAL TIMER: + Simplified screen focusing on time tracking. + Multilingual CountTimer for an easier workout experience. + Clear color differentiation between workout types. + Engaging yet simple effects to keep boredom at bay. + Vibration support for enhanced focus. + Large, screen-filling digits for easy visibility from a distance. Additional Features: + Easily track your workout history. + Completely free with full feature access. + Multiple themes for a personalized experience. + Multilingual support. This app includes an optional auto-renewable subscription (Premium ): Then an auto-renewable monthly subscription. Payment will be charged to your Apple account at confirmation of purchase and will automatically renew (at the duration/price selected) unless auto-renew is turned off at least 24 hrs before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your Apple Account Settings after purchase. Any unused portion of the free initial period will be forfeited when you purchase a subscription. Privacy Policy: https://www.qrdynamic.xyz/policy-timer-hiit Terms of Use: https://www.qrdynamic.xyz/terms-timer-hiit

Screenshots

Seconds Interval Timer4 screens
Timer Hiit4 screens

Verdict

The call

The clearest difference is ads: Seconds Interval Timer at none against Timer Hiit's shown. Timer Hiit's advantage is update cadence (every 10 days vs monthly) and iOS requirement (13.4 vs 18.0). On price, in-app purchases 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. Seconds Interval Timer sells 1 one-off in-app purchase and Timer Hiit sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Seconds Interval Timer ships an update monthly, Timer Hiit every 10 days. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 7 level
Seconds Interval Timer versus Timer Hiit: the parameters behind the verdict, then further details
ParameterSeconds Interval TimerTimer Hiit
PriceFreeFree
Rating4.7 (24K ratings) — better—
Positive reviews74.6% of reviews—
Number of ratings24K — better—
Update frequencyMonthlyEvery 10 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS18.013.4 — better
Further details — not scored
Size95 MB23 MB
Age rating4+17+
DeveloperRunloop LtdHuy Huynh Thanh

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

Timer Hiit

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Seconds Interval Timer

One-time1
  • Advanced Version$7.99
3 purchases

Timer Hiit

Subscriptions3
  • month$0.991 Month
  • 3 monthly sub$0.993 Months
  • 12 monthly sub$1.991 Year

Questions

Is Seconds Interval Timer free?
Seconds Interval Timer is free to download, with in-app purchases available.
Is Timer Hiit free?
Timer Hiit is free to download, with in-app purchases available.
Do Seconds Interval Timer or Timer Hiit have ads?
Timer Hiit shows ads; Seconds Interval Timer does not.
Which is updated more often, Seconds Interval Timer or Timer Hiit?
Seconds Interval Timer ships an update monthly, and Timer Hiit every 10 days. Most recently, Seconds Interval Timer was updated on October 14, 2026 and Timer Hiit on October 1, 2026.

Other comparisons