Seconds Interval Timer vs Interval Timer for Fitness
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Interval Timer for Fitness
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A powerful, reliable interval training timer designed for HIIT, Tabata, circuit training, and any workout routine that requires precise timing. PERFECT FOR YOUR WORKOUTS Whether you're doing high-intensity interval training (HIIT), Tabata circuits, boxing rounds, or any custom workout routine, this timer keeps you on track with precision timing and multi-sensory cues. KEY FEATURES • Countdown Cues Set multiple cues before each segment ends, with independent vibration and beep counts. Edit and preview cues on iPhone, then sync them to Apple Watch. Tap Start when ready and skip segments on either device. • Create Custom Presets Build your perfect workout with warm-up, work, rest, and cool-down intervals. Configure duration, rounds, and save unlimited presets for quick access. • Live Activity Support See your workout progress right on your Lock Screen and Dynamic Island (iPhone 14 Pro+). No need to unlock your phone to check remaining time. • Reliable Background Operation The timer continues accurately when your phone is locked, backgrounded, or interrupted by calls. Wall-clock anchored timing prevents drift. • Multi-Sensory Cues Get notified when intervals change with: - Voice announcements (optional) - Haptic feedback patterns - Audio tones - Local notifications with controls • Smart Notifications Local notifications let you control your workout without opening the app. Skip, go back, or pause/resume directly from the notification. • Works While Locked Keep your phone locked during workouts. The timer runs reliably in the background with Live Activities showing your progress. • Favorite Presets Mark your go-to workouts as favorites for instant access. Perfect for recurring training sessions. • Full Customization - Set rounds (1-99) - Configure countdown before start (0/3/5 seconds) - Toggle voice cues, haptics, and audio tones - Choose silent switch behavior - Color-code your intervals • Export & Import Share your workout presets with friends or back up your configurations as JSON files. • Accessible Design Full VoiceOver support, Dynamic Type, and high contrast design ensure everyone can use the timer effectively. COMMON USE CASES • HIIT Training Perfect for high-intensity interval training with customizable work and rest periods. • Tabata Workouts Classic 20 seconds work, 10 seconds rest, 8 rounds configuration (and any variation you need). • Circuit Training Create complex workout circuits with different exercises and timing. • Boxing & Martial Arts Configure round timers with rest periods for boxing, kickboxing, or martial arts training. • CrossFit & Functional Fitness Design WODs (Workouts of the Day) with precise timing for EMOMs, AMRAPs, and more. • Yoga & Stretching Use for timed holds and transitions in yoga or flexibility routines. • Running Intervals Sprint intervals, tempo runs, or any running workout requiring timed segments. DESIGNED FOR RELIABILITY Timer progress stays accurate when you switch apps. Locked-screen countdown alerts depend on notification permissions and settings. The app shows when only part of a workout can be covered. Watch cue sounds use media volume. PRO SUBSCRIPTION Upgrade to PRO to unlock premium features: • Unlimited custom presets (free users get 5) • Access to 20+ professional workout templates (free users get 5) • Custom categories and organization • Watch complications • Priority for future features PRO is available as a monthly subscription ($2.99/month), yearly subscription ($29.99/year - best value), or lifetime purchase ($99.99). Free trial available. Cancel anytime. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://reubenenterprises.com/privacy PRIVACY FOCUSED No account required. All your presets are stored locally on your device. Optional iCloud sync keeps your workouts backed up across your devices.
Screenshots
Verdict
The clearest difference is iOS requirement: Seconds Interval Timer at 18.0 against Interval Timer for Fitness's 26.0. 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 Interval Timer for Fitness sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Seconds Interval Timer ships an update monthly, Interval Timer for Fitness every 3 weeks. The most recent releases landed on November 9, 2026 and October 24, 2026 respectively.
| Parameter | Seconds Interval Timer | Interval Timer for Fitness |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (24K ratings) — better | — |
| Positive reviews | 74.5% of reviews | — |
| Number of ratings | 24K — better | — |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 18.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 99 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Runloop Ltd | Reuben Enterprises Ltd |
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
Interval Timer for Fitness
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Seconds Interval Timer
- Advanced Version$7.99
Interval Timer for Fitness
- Monthly$1.991 Month
- Yearly$19.991 Year
- Lifetime$39.99
Questions
Is Seconds Interval Timer free?
Is Interval Timer for Fitness free?
Do Seconds Interval Timer or Interval Timer for Fitness have ads?
Which is updated more often, Seconds Interval Timer or Interval Timer for Fitness?
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