Comparison

Seconds Interval Timer vs Cadence

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 interval timer app helps you build and run custom workouts for HIIT, Tabata, and circuits. It provides voice cues, runs in the background, and syncs with Apple Watch. Save workouts to Apple Health and track calories burned.

Highlights
  • Build custom timers for any workout
  • Voice cues for intervals
  • Runs in background with screen off
  • Syncs with Apple Watch
  • Color-coded interval display
  • Save workouts to Apple Health
  • Play music with cues
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

Cadence

This app helps fitness instructors manage class timing and cues. Plan routines, display information on various devices, and provide silent or audible guidance to clients. Offers free and paid tiers with advanced features for professional use.

Highlights
  • Plan class routines with custom moves and cues
  • Display current, next, and private cues
  • Teach from Apple Watch, iPhone, or iPad
  • Import routines from spreadsheets or notes
  • Customizable haptic and audio alerts
  • Sync workouts with Routine Together feature
Features
Read full description

Teach the room, not the clock. Cadence is the class timer for instructors. Pilates first, and just as at home in barre, yoga, HIIT, bootcamp, and personal training. Plan the flow once on iPhone, then teach it from your Apple Watch, your iPhone propped on the reformer, or an iPad the whole room can read. It shows the current move, your private cue, and what is next, and taps you before every transition. Your eyes stay on your clients. Plan the class once • Name each move, set the seconds, and add the coaching cue only you see. • Add between-step transition pauses for spring changes or setup, across the routine or per step. • Loop a move or a linked multi-step block for Left & Right sides or repeated sets, with an optional switch-sides pause (Cadence Pro). • Color-code warm-up, work, and cool-down so the runner reads at a glance. • Repeat a block for rounds, rest between them, and open with a Get Ready countdown (Cadence Pro). • Start from a template: a 45-minute reformer flow, a 50-minute mat class, a 30-minute private, a 45-minute barre class, a 60-minute yoga flow, Tabata, HIIT, a five-station circuit, EMOM. • Tag routines Mat, Reformer, Private, Barre, Yoga, HIIT, or Strength and filter the library by class format. Bring in the plans you already have • Paste from Google Sheets, Excel, Numbers, or Notes, or open CSV files — with 1 free spreadsheet import included, and unlimited imports on Cadence Pro. • Smart Import (Cadence Pro): paste a plan from notes, an email, or a PDF in any layout and Cadence turns it into a routine to review before saving. • Send a routine to a colleague as a link or a CSV (Cadence Pro). Nothing is uploaded when sharing a link. Teach from whatever is closest • Apple Watch: current move, countdown, up next, and step count, with haptics at each step change, at your warning mark, and at any custom haptic marks you set. • iPhone & iPad: focus mode, hold-to-unlock screen lock, landscape iPad studio view, and AirPlay/HDMI Studio Display for a TV or projector (Cadence Pro). • Lock Screen and Dynamic Island timer with pause and skip buttons, plus Apple Music playlist attachment per routine (Cadence Pro). • Routine Together: join any live synced workout by 6-digit room code for free, or host multi-device synced sessions with Cadence Studio. Cues the way you want them, or not at all • Everything is silent until you turn it on. • Haptics with custom per-step marks and optional 3-2-1 countdown taps, plus chime, beep, or bell tones and halfway cues. • Voice cues read the move and your coaching cue aloud (1 free sample class; unlimited with Cadence Pro). Free, Pro, and Studio Cadence is free with up to 2 active routines, templates, step colors, between-step transitions, custom haptic marks, sound alerts, headphone controls, 1 free spreadsheet import, 1 free voice-cue class, and joining Routine Together sessions. Cadence Pro is $9.99/month (after a 7-day free trial) or $59.99/year. Cadence Studio is $19.99/month or $119.99/year (7-day free trial) and adds hosting Routine Together live multi-device sessions. Terms of Use: https://cadencetimer.ai/terms Privacy Policy: https://cadencetimer.ai/privacy

Screenshots

Seconds Interval Timer4 screens
Cadence4 screens

Verdict

The call

The clearest difference is review sentiment: Cadence at 100% against Seconds Interval Timer's 74%. Cadence also leads on rating (5.0 vs 4.7) and update cadence (every 2 weeks vs monthly). Seconds Interval Timer's advantage is ratings volume (24K vs 4). 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 Cadence sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cadence 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 4, 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 Cadence's.

UpkeepUpdate frequency

Seconds Interval Timer ships an update monthly, Cadence every 2 weeks. The most recent releases landed on November 15, 2026 and November 13, 2026 respectively.

Scorecard4 real differences · 6 level
Seconds Interval Timer versus Cadence: the parameters behind the verdict, then further details
ParameterSeconds Interval TimerCadence
PriceFreeFree
Rating4.7 (24K ratings)5.0 (4 ratings) — better
Positive reviews73.8% of reviews100.0% of reviews — better
Number of ratings24K — better4
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS18.017.0 — better
Further details — not scored
Size99 MB7 MB
Age rating4+4+
DeveloperRunloop LtdTrue AI Ventures

Customer experience

Seconds Interval Timer

All ratings23,780 ratings
Positive92.9%
Neutral1.9%
Negative5.2%
Written reviews1,342 reviews
Positive73.8%
Neutral6.5%
Negative19.7%

Cadence

All ratings4 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

Cadence

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

Cadence

Subscriptions4
  • Cadence Pro7 Days trial$9.991 Month
  • Cadence Studio Monthly7 Days trial$19.991 Month
  • Cadence Pro Yearly$59.991 Year
Show 1 more
  • Cadence Studio Yearly7 Days trial$119.991 Year

Questions

Is Seconds Interval Timer free?
Seconds Interval Timer is free to download, with in-app purchases available.
Is Cadence free?
Cadence is free to download, with in-app purchases available.
Which has better reviews, Seconds Interval Timer or Cadence?
Cadence is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Cadence averages 5.0 from 4 ratings.
Do Seconds Interval Timer or Cadence have ads?
Neither Seconds Interval Timer nor Cadence shows ads.
Which is updated more often, Seconds Interval Timer or Cadence?
Seconds Interval Timer ships an update monthly, and Cadence every 2 weeks. Most recently, Seconds Interval Timer was updated on November 15, 2026 and Cadence on November 13, 2026.

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