Seconds Interval Timer vs Cadence
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Cadence
This app helps movement instructors lead classes hands-free by syncing class timing, sequences, and cues to their Apple Watch. Build custom routines with detailed notes and transitions, and deliver polished sessions without needing to check your phone.
- Hands-free class leading
- Apple Watch sync
- Custom routine builder
- At-a-glance timing
- Tactile haptic cues
- Custom form prompts
- Offline class execution
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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. • 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, Tabata, HIIT, a five-station circuit, EMOM. • Tag routines Mat, Reformer, Private, Barre, Yoga, HIIT, or Strength and filter the library by class format. • Duplicate and remix any routine. Bring in the plans you already have (Cadence Pro) • Paste straight from Google Sheets, Excel, Numbers, or Notes. Cadence reads the moves, times, and cues and shows you a review before anything is saved. • Open CSV and tab-separated files. • Send a routine to a colleague as a link or a CSV. They open it in Cadence. Nothing is uploaded anywhere. Teach from whatever is closest • Apple Watch: current move, countdown, up next, and step count, with a tap at every change and five seconds before it. Pause, skip, redo a step, or end early from your wrist. • iPhone: the same view, big enough to prop on the reformer. Focus mode strips it down to the move and the time. • iPad: turn it sideways for a studio display, countdown and cue on one side, the full routine on the other. • Lock the screen so a stray touch cannot skip a move. Hold to unlock. • The Lock Screen and Dynamic Island show the current step and countdown, with pause and skip buttons (Cadence Pro). Cues the way you want them, or not at all • Everything is silent until you turn it on. • Haptics, plus a chime, beep, or bell at each step, a warning near the end, and a finish tone. • Voice cues read the move and your coaching cue aloud (Cadence Pro). • Halfway cues for longer holds. • Keep running when locked, with play, pause, and skip from AirPods or the Lock Screen. • Music from other apps dips while a cue plays, then comes back. Quick Intervals on Apple Watch (Cadence Pro) Set work, rest, and rounds on your wrist and start without the phone. Compound routines (Cadence Pro) Chain a warm-up, a main block, and a cool-down into one class that runs start to finish. Siri and Shortcuts "Hey Siri, start Thursday Reformer in Cadence." Count classes, not minutes Cadence keeps a tally of the classes you teach and marks the milestones along the way: 10 classes, 100 classes, a 12-week streak. Four looks Choose the appearance that suits your studio, from a dark boutique look to a light serif one. Your Watch follows. Free and Pro Cadence is free with up to 2 active routines, templates, step colors, sound alerts, and headphone controls. Cadence Pro adds unlimited routines, archiving, import and export, rounds, share links, the Lock Screen timer, voice cues, compound routines, and Quick Intervals for $9.99 a month after a 7-day free trial. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Any unused portion of a free trial is forfeited when you purchase a subscription. Terms of Use: https://cadencetimer.ai/terms Privacy Policy: https://cadencetimer.ai/privacy Cadence sends anonymous usage analytics: no account, no name, nothing about your routines.
Screenshots
Verdict
The clearest difference is review sentiment: Cadence at 100% against Seconds Interval Timer's 75%. Cadence also leads on rating (5.0 vs 4.7). Seconds Interval Timer's advantage is ratings volume (24K vs 4). 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
Both are free to download. Seconds Interval Timer sells 1 one-off in-app purchase and Cadence sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
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: 75% of Seconds Interval Timer's written reviews are positive against 100% of Cadence's.
Seconds Interval Timer ships an update monthly, Cadence every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Seconds Interval Timer | Cadence |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (24K ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 74.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 24K — better | 4 |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 99 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Runloop Ltd | True AI Ventures |
Customer experience
Seconds Interval Timer
Cadence
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
Seconds Interval Timer
- Advanced Version$7.99
Cadence
- Cadence Pro7 Days trial$9.991 Month
- Cadence Pro Yearly$59.991 Year
Questions
Is Seconds Interval Timer free?
Is Cadence free?
Which has better reviews, Seconds Interval Timer or Cadence?
Do Seconds Interval Timer or Cadence have ads?
Which is updated more often, Seconds Interval Timer or Cadence?
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