Comparison

Seconds Interval Timer vs HTP GROUP

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

HTP GROUP

This platform helps instructors and trainers monitor group fitness participants' live data on a large display. Collected data is stored and can be transmitted to a secure web portal for analysis and goal setting. Users can review, study, and adjust fitness goals based on accumulated performance metrics.

Highlights
  • Live group fitness data display
  • Participant data storage
  • Secure web portal integration
  • Data analysis and review
  • Fitness goal setting and adjustment
Features
Read full description

The Heart Tech Plus (HTP) platform enables instructors, trainers, coaches and PE teachers to assist clients or students with achieving individual results during group fitness activity. The HTP Group application will display each participant's data live on a big display. Once the data is collected in the application it is stored within the application on the ipad for later transmission to the Heart Tech Plus new portal. When the instructor decides to connect to wifi on the IPad they can decide to send all the collected data to the new secure web portal specifically designed for this HTP Group application. Both instructors and students can view, review, study/analyze their data, then set appropriate fitness goals. The platform allows continuous adjustment of goals, based on accumulated data. The newly designed app was build to connect to a robust new web portal.

Screenshots

Seconds Interval Timer4 screens
HTP GROUP3 screens

Verdict

The call

The clearest difference is in-app purchases: HTP GROUP at none against Seconds Interval Timer's 1. HTP GROUP also leads on rating (5.0 vs 4.7) and iOS requirement (14.0 vs 18.0). Seconds Interval Timer's advantage is ratings volume (24K vs 3). On price, update cadence, ads 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. HTP GROUP asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

HTP GROUP 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 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Seconds Interval Timer ships an update monthly, HTP GROUP every 5 weeks. The most recent releases landed on September 24, 2026 and June 13, 2026 respectively.

Scorecard5 real differences · 5 level
Seconds Interval Timer versus HTP GROUP: the parameters behind the verdict, then further details
ParameterSeconds Interval TimerHTP GROUP
PriceFreeFree
Rating4.7 (24K ratings)5.0 (3 ratings) — better
Positive reviews75.2% of reviews
Number of ratings24K — better3
Update frequencyMonthly — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.014.0 — better
Further details — not scored
Size95 MB34 MB
Age rating4+4+
DeveloperRunloop LtdFitness in a Heartbeat Inc

Customer experience

Seconds Interval Timer

All ratings23,662 ratings
Positive93.0%
Neutral1.9%
Negative5.2%
Written reviews1,234 reviews
Positive75.2%
Neutral6.2%
Negative18.6%

HTP GROUP

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

HTP GROUP

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Seconds Interval Timer

One-time1
  • Advanced Version$7.99
None

HTP GROUP

No in-app purchases

Questions

Is Seconds Interval Timer free?
Seconds Interval Timer is free to download, with in-app purchases available.
Is HTP GROUP free?
HTP GROUP is free to download, with no in-app purchases.
Which has better reviews, Seconds Interval Timer or HTP GROUP?
HTP GROUP is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while HTP GROUP averages 5.0 from 3 ratings.
Do Seconds Interval Timer or HTP GROUP have ads?
Neither Seconds Interval Timer nor HTP GROUP shows ads.
Which is updated more often, Seconds Interval Timer or HTP GROUP?
Seconds Interval Timer ships an update monthly, and HTP GROUP every 5 weeks. Most recently, Seconds Interval Timer was updated on September 24, 2026 and HTP GROUP on June 13, 2026.

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