Comparison

Seconds Interval Timer vs Barkle

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

Barkle

Analyze your fitness data and enhance your performance with community-driven tools. Upgrade for exclusive features, cross-platform data integration, and early access to live events and races.

Highlights
  • Data analysis tools
  • Performance enhancement features
  • Community-driven features
  • Exclusive previews
  • Cross-platform data integration (coming soon)
  • Early access to live events and races
Features
Read full description

At Barkle, we've got a bunch of cool features that were created with the help of a super engaged community of Peloton users. With our tools, you can analyse your data and even use some advanced stuff to up your performance game. Barkle+ Upgrade and get access to: - ⁠Complete access to the Barkle app along with exclusive previews for new feature releases. - ⁠Connect Barkle to non-Peloton data and get a more holistic view of your fitness. (Coming soon) - ⁠Get early and free access to exclusive LIVE events and races with our supportive community. - Auto-renewing subscription ($8 monthly / $70 yearly - price varies by country) Privacy Policy: https://barkle.io/pp Terms and Conditions: https://barkle.io/tc

Screenshots

Seconds Interval Timer4 screens
Barkle4 screens

Verdict

The call

The clearest difference is review sentiment: Barkle at 100% against Seconds Interval Timer's 75%. Barkle also leads on rating (5.0 vs 4.7) and iOS requirement (15.1 vs 18.0). Seconds Interval Timer's advantage is ratings volume (24K vs 6). 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 Barkle sells 4 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Barkle 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 6, 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 Barkle's.

UpkeepUpdate frequency

Seconds Interval Timer ships an update monthly, Barkle every 2 weeks. The most recent releases landed on October 15, 2026 and October 1, 2026 respectively.

Scorecard4 real differences · 6 level
Seconds Interval Timer versus Barkle: the parameters behind the verdict, then further details
ParameterSeconds Interval TimerBarkle
PriceFreeFree
Rating4.7 (24K ratings)5.0 (6 ratings) — better
Positive reviews74.6% of reviews100.0% of reviews — better
Number of ratings24K — better6
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size95 MB80 MB
Age rating4+17+
DeveloperRunloop Ltd22 Eleven Ltd

Customer experience

Seconds Interval Timer

All ratings23,711 ratings
Positive93.0%
Neutral1.9%
Negative5.2%
Written reviews1,271 reviews
Positive74.6%
Neutral6.4%
Negative19.0%

Barkle

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 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

Barkle

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Seconds Interval Timer

One-time1
  • Advanced Version$7.99
4 purchases

Barkle

Subscriptions2
  • Barkle+$7.991 Month
  • Barkle+$69.991 Year
One-time2
  • Single Event Access.5 variants$4.99
  • Pay As You Use8 variants$4.99

Questions

Is Seconds Interval Timer free?
Seconds Interval Timer is free to download, with in-app purchases available.
Is Barkle free?
Barkle is free to download, with in-app purchases available.
Which has better reviews, Seconds Interval Timer or Barkle?
Barkle is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Barkle averages 5.0 from 6 ratings.
Do Seconds Interval Timer or Barkle have ads?
Neither Seconds Interval Timer nor Barkle shows ads.
Which is updated more often, Seconds Interval Timer or Barkle?
Seconds Interval Timer ships an update monthly, and Barkle every 2 weeks. Most recently, Seconds Interval Timer was updated on October 15, 2026 and Barkle on October 1, 2026.

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