Comparison

Seconds Interval Timer vs Hi 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

Hi Timer

Create and customize your own interval workouts with this intuitive timer app. Features include quick start templates, advanced customization, voice cues, and background operation. Seamlessly integrate with your music and save workouts to Apple Health.

Highlights
  • Customizable interval workouts
  • Quick start templates (Tabata)
  • Drag & drop interface
  • Voice and sound cues
  • Background operation
  • Music integration
  • HealthKit integration
Features
Read full description

Hi Timer, Your Personal Interval Training Companion Hi Timer makes it effortless to create and customise your own interval workouts. Whether you’re jumping into a quick Tabata session or building advanced routines like Circuits and Combinations, Hi Timer gives you the tools to stay on track and motivated. Hi Timer is designed to be simple enough for quick sessions, yet powerful enough to handle the most complex training routines. With its intuitive drag-and-drop interface, powerful customization options, and seamless background performance, Hi Timer helps you focus on your workout, not your phone. Featuring: - Quick Start Templates – Get moving right away with popular HIIT formats like Tabata. - Advanced Customisation – Build Circuits, Combinations, or fully custom routines with unlimited flexibility. - Drag & Drop Simplicity – Reorder intervals and sub-timers with ease. - Voice & Sound Cues – Interval names read aloud via text-to-speech, so you never need to glance at your screen. - Works in the Background – Keep your timer running with the screen locked or while using other apps. - Music Integration – Play your own tracks from Apple Music, your library, or other apps alongside your workout. - Smart Sounds – Choose start sounds, halfway alerts, and custom audio cues for every interval. - Cloud Sync & Sharing – Access your timers across devices or share them instantly with friends via a simple link. - HealthKit Integration – Save your completed workouts to Apple Health. This app is for timing only and does not provide medical or fitness advice. Consult a licensed healthcare professional before beginning any exercise program. This app contains optional in-app purchases that grant full access to unlimited timers and workouts, and the ability to share timers between devices. You may be offered a free trial for the Premium subscription. After the free trial period, if offered, the subscription automatically renews with the price and duration given above unless it is cancelled at least 24 hours before the end of the current period. Payment will be charged to your Apple ID account at the confirmation of purchase. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Removing the app doesn’t automatically cancel the subscription. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Seconds Interval Timer4 screens
Hi Timer4 screens

Verdict

The call

The clearest difference is review sentiment: Hi Timer at 100% against Seconds Interval Timer's 75%. Hi Timer also leads on rating (5.0 vs 4.7) and iOS requirement (15.0 vs 18.0). Seconds Interval Timer's advantage is ratings volume (24K vs 1). On price, update cadence, 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 Hi Timer sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Hi Timer 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. Written reviews point the same way: 75% of Seconds Interval Timer's written reviews are positive against 100% of Hi Timer's.

UpkeepUpdate frequency

Seconds Interval Timer ships an update monthly, Hi Timer every 3 weeks. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
Seconds Interval Timer versus Hi Timer: the parameters behind the verdict, then further details
ParameterSeconds Interval TimerHi Timer
PriceFreeFree
Rating4.7 (24K ratings)5.0 (1 ratings) — better
Positive reviews74.6% of reviews100.0% of reviews — better
Number of ratings24K — better1
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.015.0 — better
Further details — not scored
Size95 MB17 MB
Age rating4+17+
DeveloperRunloop LtdSophie Payne

Customer experience

Seconds Interval Timer

All ratings23,711 ratings
Positive93.0%
Neutral1.9%
Negative5.2%
Written reviews1,268 reviews
Positive74.6%
Neutral6.4%
Negative19.0%

Hi Timer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
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

Hi Timer

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

Hi Timer

Subscriptions2
  • Hi Timer Premium Monthly$0.991 Month
  • Hi Timer Premium Yearly7 Days trial$3.991 Year
One-time1
  • HiTimer Forever$6.99

Questions

Is Seconds Interval Timer free?
Seconds Interval Timer is free to download, with in-app purchases available.
Is Hi Timer free?
Hi Timer is free to download, with in-app purchases available.
Which has better reviews, Seconds Interval Timer or Hi Timer?
Hi Timer is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Hi Timer averages 5.0 from 1 ratings.
Do Seconds Interval Timer or Hi Timer have ads?
Neither Seconds Interval Timer nor Hi Timer shows ads.
Which is updated more often, Seconds Interval Timer or Hi Timer?
Seconds Interval Timer ships an update monthly, and Hi Timer every 3 weeks. Most recently, Seconds Interval Timer was updated on October 13, 2026 and Hi Timer on October 3, 2026.

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