Comparison

Seconds Interval Timer vs Q Master for F3

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

Q Master for F3

This app helps users plan and track workouts with clear typography and a dark mode option. It includes features for sharing routines, finding local workouts, and using a tabata timer or random drill generator. It's designed to make morning exercise sessions more manageable.

Highlights
  • Assemble and plan workouts
  • Share routines on social media
  • Find local workouts
  • Tabata timer
  • Random drill generator
  • Dark mode support
Features
Read full description

The app all pax need to conquer those dark, gloomy mornings with ease! The Q Master app uses large, clear typography to see your current and upcoming exercises. • Assemble and plan your workouts with ease. • Share your beatdowns on social networks. • Away from your AO? Find beatdowns in your area. • Run timed drills with the tabata timer. • Deal a beatdown from the Deck of Pain. • Roll the Dodecahedron of Death to execute a punishing drill. • Dark mode supported.

Screenshots

Seconds Interval Timer4 screens
Q Master for F34 screens

Verdict

The call

The clearest difference is in-app purchases: Q Master for F3 at none against Seconds Interval Timer's 1. Q Master for F3 also leads on review sentiment (100% vs 74%) and rating (5.0 vs 4.7). Seconds Interval Timer's advantage is ratings volume (24K vs 6). 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. Q Master for F3 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Q Master for F3 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: 74% of Seconds Interval Timer's written reviews are positive against 100% of Q Master for F3's.

UpkeepUpdate frequency

Seconds Interval Timer ships an update monthly, Q Master for F3 every 4 weeks. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 5 level
Seconds Interval Timer versus Q Master for F3: the parameters behind the verdict, then further details
ParameterSeconds Interval TimerQ Master for F3
PriceFreeFree
Rating4.7 (24K ratings)5.0 (6 ratings) — better
Positive reviews74.5% of reviews100.0% of reviews — better
Number of ratings24K — better6
Update frequencyMonthlyEvery 4 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS18.0 — better18.6
Further details — not scored
Size95 MB47 MB
Age rating4+4+
DeveloperRunloop LtdIan Wilkinson

Customer experience

Seconds Interval Timer

All ratings23,711 ratings
Positive93.0%
Neutral1.9%
Negative5.2%
Written reviews1,278 reviews
Positive74.5%
Neutral6.3%
Negative19.2%

Q Master for F3

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 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

Q Master for F3

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Seconds Interval Timer

One-time1
  • Advanced Version$7.99
None

Q Master for F3

No in-app purchases

Questions

Is Seconds Interval Timer free?
Seconds Interval Timer is free to download, with in-app purchases available.
Is Q Master for F3 free?
Q Master for F3 is free to download, with no in-app purchases.
Which has better reviews, Seconds Interval Timer or Q Master for F3?
Q Master for F3 is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Q Master for F3 averages 5.0 from 6 ratings.
Do Seconds Interval Timer or Q Master for F3 have ads?
Neither Seconds Interval Timer nor Q Master for F3 shows ads.
Which is updated more often, Seconds Interval Timer or Q Master for F3?
Seconds Interval Timer ships an update monthly, and Q Master for F3 every 4 weeks. Most recently, Seconds Interval Timer was updated on October 21, 2026 and Q Master for F3 on October 11, 2026.

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