Comparison

Seconds Interval Timer vs Burnd

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

Burnd

This app simplifies High-Intensity Interval Training (HIIT) with customizable workout configurations and a clean interface. It offers audio guidance, workout history, and the ability to save favorite routines for easy access.

Highlights
  • Quick start workouts
  • Customizable exercise and rest durations
  • Voice coach for audio guidance
  • Pause and resume functionality
  • Workout history and overview
  • Save favorite workouts
Features
Read full description

Introducing Burnd: The Ultimate HIIT Trainer & Timer App Are you ready to transform your workouts and ignite your fitness journey? Look no further! Burnd is the ultimate High-Intensity Interval Training (HIIT) app that will revolutionize the way you train. Features: - Quick start - launch the app and start exercising - Configuration for exercise & rest duration, workout sets, rounds and break between rounds all with just a couple of taps - Clean user interface that only shows whats important - Voice coach for audio guidance - Pause and resume workouts - Fast back and forward navigation during workouts - Workout history and overview of your completed workouts - Manage and save your favourite workouts for quick access Terms and Conditions: - https://philjay.github.io/burnd-app/terms/ Privacy Policy: - https://philjay.github.io/burnd-app/privacypolicy/

Screenshots

Seconds Interval Timer4 screens
Burnd4 screens

Verdict

The call

The clearest difference is review sentiment: Seconds Interval Timer at 75% against Burnd's 0%. Seconds Interval Timer also leads on ratings volume (24K vs 1) and iOS requirement (18.0 vs 26.0). Burnd's advantage is update cadence (every 4 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 Burnd 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

Burnd 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 complicate that: 75% of Seconds Interval Timer's written reviews are positive against 0% of Burnd's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Seconds Interval Timer ships an update monthly, Burnd every 4 days. The most recent releases landed on September 26, 2026 and September 16, 2026 respectively.

Scorecard5 real differences · 5 level
Seconds Interval Timer versus Burnd: the parameters behind the verdict, then further details
ParameterSeconds Interval TimerBurnd
PriceFreeFree
Rating4.7 (24K ratings)5.0 (1 ratings) — better
Positive reviews75.1% of reviews — better0.0% of reviews
Number of ratings24K — better1
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS18.0 — better26.0
Further details — not scored
Size95 MB8 MB
Age rating4+4+
DeveloperRunloop LtdPhilipp Jahoda

Customer experience

Seconds Interval Timer

All ratings23,662 ratings
Positive93.0%
Neutral1.9%
Negative5.2%
Written reviews1,239 reviews
Positive75.1%
Neutral6.1%
Negative18.8%

Burnd

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
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

Burnd

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

Burnd

Subscriptions1
  • Premium Monthly Subscription$0.991 Month
One-time2
  • Premium Lifetime Special Deal$3.99
  • Premium Lifetime$7.99

Questions

Is Seconds Interval Timer free?
Seconds Interval Timer is free to download, with in-app purchases available.
Is Burnd free?
Burnd is free to download, with in-app purchases available.
Which has better reviews, Seconds Interval Timer or Burnd?
Burnd is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Burnd averages 5.0 from 1 ratings.
Do Seconds Interval Timer or Burnd have ads?
Neither Seconds Interval Timer nor Burnd shows ads.
Which is updated more often, Seconds Interval Timer or Burnd?
Seconds Interval Timer ships an update monthly, and Burnd every 4 days. Most recently, Seconds Interval Timer was updated on September 26, 2026 and Burnd on September 16, 2026.

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