Seconds Pro Interval Timer vs Next Up
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Seconds Pro Interval Timer
This interval timer app is designed for high-intensity interval training (HIIT), Tabata, and circuit training workouts. It features a large, color-coded display, customizable interval names, and background operation. It also integrates with Apple Health to track your fitness data.
- Full screen colored display
- Templates for HIIT, Tabata, Circuit Training
- Speaks interval names and provides warnings
- Assign music per interval
- Runs in background
- Share interval timers
- Apple Health integration
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Seconds Pro 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 Pro 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 Pro reads your body measurements and year of birth from Health to estimate calories burned. PAID ONCE, NOTHING TO UNLOCK - Seconds Pro is paid for up front. Every feature is included and every timer you make can be run as many times as you like. SECONDS AND SECONDS PRO - Seconds is the free version of this app. It has the same features, but each timer locks after one run until a single in-app purchase unlocks it. 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.
Next Up
Create and customize interval timers with detailed options for reps, sets, colors, and sounds. Offers flexible display modes, quick actions for navigation, and background notifications. Organize timers with folders and choose between light and dark themes.
- Customizable intervals (reps, sets, colors, sounds)
- Detailed and full-screen display modes
- Portrait and landscape orientation support
- Quick actions for navigation and editing
- Background notifications
- Timer organization with folders
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Customize Your Intervals, Your Way A fully customizable interval timer: Create your intervals. Specify reps, sets, colours and sounds. Tailor it to your purpose and needs. Minimal design and easy to use. Options for rep-based intervals and images. Display options: Choose to run your timer in a detailed view that auto-scrolls through intervals or a full-screen mode for a larger, easily visible display. Both modes support portrait and landscape orientations. Visual details: In detailed view, running intervals and sets are highlighted, providing a clear visual cue. For intervals with multiple reps, the highlighted area indicates the percentage completed. Set optional background colours on intervals for a visual cue. Light and dark mode versions are available and will adapt to your preferences set on your device. Quick actions: Set an interim interval that will automatically be added between intervals. Optionally, end your timer with the interim interval. Skip or backtrack through intervals using intuitive arrow buttons. Swipe actions allow for easy deletion and duplication of intervals and sets. --- Interval Timer features: • Interval timers: Create timers with unlimited intervals. • Description, Length, and Reps: Set the details of each interval, customizing it to your precise requirements. • Interim Intervals: Quickly set up timers by adding interim intervals that run between each interval. • Interval Sets: Group intervals into sets and specify the desired number of set reps. • Interval Customization: Differentiate intervals with background colors. • Time Display: View countdown of each interval and total remaining time, with an option to display total elapsed time. • Progress and Highlighting: View progress with highlighted current intervals and reps completed. • Start from Any Interval: Choose which interval to start the timer from, providing maximum control. • User-friendly Actions: Effortlessly manage intervals with swipe actions for deletion and duplication. Duplicate button allows for easy copying of intervals, sets, and timers. Arrow buttons enable smooth navigation between intervals. • Background Notifications: Run timers in the background and receive alerts for interval changes and timer completion. • Organize with Folders: Create folders to organize and easily access your timers. • Orientation and Display: Enjoy portrait and landscape orientations, and full-screen mode for a larger timer display. • Light and Dark Mode: Seamlessly switch between light and dark mode to suit your preference. Upgrade features include: • Unlimited timers: Create as many timers as you like. • Sound Options: Enable countdown beeps, set interval/timer sounds, and/or enable text to speech. • Rep-based Intervals: Option to create intervals based on reps instead of time to offer maximum flexibility. • More Interval Customization: Differentiate intervals with images/photos and sounds. • Edit received timers: Flexibility to modify all timers. Subscription - syncing and sharing timers: • Sync and Share: Sync timers across devices and choose to share timers and folders with other users. Sharing via email includes a direct download link and instructions. --- Privacy Policy: https://alysha.dev/interval-timer-privacy-policy Terms of Use: https://alysha.dev/interval-timer-terms-of-use
Screenshots
Verdict
The clearest difference is price: Next Up at Free against Seconds Pro Interval Timer's $7.99. Next Up also leads on iOS requirement (13.0 vs 18.0). Seconds Pro Interval Timer's advantage is in-app purchases (none vs 2) and update cadence (fortnightly vs every 5 weeks). On rating, review sentiment, 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
Next Up is free to download; Seconds Pro Interval Timer costs $7.99 up front. Next Up sells 2 in-app purchases, starting at $3.99 per month. Seconds Pro Interval Timer asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for Seconds Pro Interval Timer against 4.7 for Next Up. Both are backed by a comparable volume of ratings — 12K and 2.8K respectively. Written reviews are what separate them: 80% of Seconds Pro Interval Timer's written reviews are positive against 76% of Next Up's.
Seconds Pro Interval Timer ships an update fortnightly, Next Up every 5 weeks. Both last shipped on September 24, 2026.
| Parameter | Seconds Pro Interval Timer | Next Up |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 4.8 (12K ratings) — better | 4.7 (2.8K ratings) |
| Positive reviews | 79.9% of reviews — better | 76.0% of reviews |
| Number of ratings | 12K — better | 2.8K |
| Update frequency | Fortnightly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #10 — better | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 94 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Runloop Ltd | Alysha Kwok |
Customer experience
Seconds Pro Interval Timer
Next Up
Bugs and requests
Seconds Pro Interval Timer
Reported bugs
4 issues- Intervals randomly pausing or skipping
- Music volume issues when launching the app
- Inconsistent audio cues and countdown
- Sync issues between devices
Requested features
6 requests- Ability to lock Apple Watch screen
- Option to see more than just the next exercise
- Fractional time settings (e.g. 7.74 seconds)
- More voice/audio customization options
- Improved sync between iPhone and iPad
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- Calendar integration to track workouts
Next Up
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Seconds Pro Interval Timer
No in-app purchases
Next Up
- Syncing and Sharing$3.991 Month
- Upgrade$2.99
Questions
Is Seconds Pro Interval Timer free?
Is Next Up free?
Which has better reviews, Seconds Pro Interval Timer or Next Up?
Do Seconds Pro Interval Timer or Next Up have ads?
Which is updated more often, Seconds Pro Interval Timer or Next Up?
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