Comparison

Seconds Pro Interval Timer vs Timber

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Timber

Read full description

Timber is a customizable interval timer and routine builder. Whether you're crushing a HIIT workout, sinking into a deep focus session, or perfecting your morning schedule, Timber lets you build your routine, your way. Create simple countdowns or advanced multi-step routines with reusable blocks, groups, repeats, nested timers, media cues, and background playback. Stop switching between separate apps for HIIT, Tabata, Pomodoro, meditation, stretching, coaching, and cooking. Timber lets you build the exact routine you need. BUILD ONCE, REUSE ANYWHERE Create simple or highly advanced timers using our flexible block-based system. • Create reusable timer blocks • Group blocks into circuits, sets, and rounds • Repeat blocks, groups, or full timers • Nest timers inside other timers • Merge blocks into groups or split them apart • Edit linked blocks once to update them everywhere, or unlink for a custom version • Duplicate timers and blocks for easy modification GUIDE EVERY STEP WITH RICH MEDIA CUES Don't just watch the clock. Attach rich media to any timer step so you know exactly what to do and when to do it: • Add YouTube, Vimeo, and Dailymotion video demos • Attach local video, audio, image, recording, and text prompts • Use text-to-speech voice cues for hands-free guidance • Add music, countdown sounds, and instructions to individual timer steps • Keep cues running with native background playback ONE TIMER FOR EVERY ACTIVITY • Workouts & Training: HIIT, Tabata, EMOM, boxing rounds, circuit training, stretching, and mobility. Add exercise demo videos right into your rest and work intervals. • Focus & Productivity: Pomodoro, deep work, studying, reading, and work sprints • Mindfulness: yoga, breathwork, meditation, and guided practice • Daily life: morning routines, cooking steps, speaking practice, and coaching plans TRACK YOUR PROGRESS See how consistently you’re completing your routines. • View weekly timer time, completed sessions, and streaks • Explore seven-day activity bars and a monthly heatmap • See per-timer stats including times run, total time, and average completion • Review completed, skipped, and unplayed sections of each session SHARE AND IMPORT COMPLETE TIMERS • Share lightweight timers with a QR code • Share media-rich timers as a Timber zip file • Choose which media files to include before sharing • Preview media before exporting or importing • Scan QR codes from another phone or from a saved image • Review, rename, and confirm shared timers before adding them • Imported timers stay clearly marked so you know where they came from RELIABLE BACKGROUND PLAYBACK Run timers with a focused, distraction-free display or continue while using other apps. Timber keeps your countdown, audio cues, TTS prompts, and notifications moving in the background. • Use a focused full-screen playback view • Follow and control timers with Live Activities on the Lock Screen and Dynamic Island • Keep timers and supported media cues running in the background FULL BACKUP & RESTORE Keep a portable copy of your Timber data. • Back up timers, blocks, history, media, and your theme preference • Export everything as a .timber.zip file • Preview a backup before restoring it • Choose individual timers to restore • Restore nested timers and their required media automatically PRIVATE & OFFLINE-FIRST Your data belongs to you. Timers, blocks, history, and local media are stored on your device. You decide when to export, share, back up, or restore them. No account required, no forced logins WHY CHOOSE TIMBER? • Replaces basic countdown timers, stopwatches, and routine apps • Reusable blocks make advanced timers faster to build • Rich media cues help you know exactly what to do next • QR and zip sharing make it easy to move routines between devices • Flexible enough for simple tasks and complex schedules Create once. Reuse anywhere with Timber. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Seconds Pro Interval Timer4 screens
Timber4 screens

Verdict

The call

The clearest difference is price: Timber at Free against Seconds Pro Interval Timer's $7.99. Timber also leads on update cadence (daily vs fortnightly) and iOS requirement (16.2 vs 18.0). Seconds Pro Interval Timer's advantage is in-app purchases (none vs 2) and ads (none vs shown). On 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

Timber is free to download; Seconds Pro Interval Timer costs $7.99 up front. Timber sells 2 in-app purchases, starting at $1.99 per month. Seconds Pro Interval Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Seconds Pro Interval Timer ships an update fortnightly, Timber daily. The most recent releases landed on October 16, 2026 and September 30, 2026 respectively.

Scorecard6 real differences · 5 level
Seconds Pro Interval Timer versus Timber: the parameters behind the verdict, then further details
ParameterSeconds Pro Interval TimerTimber
Price$7.99Free — better
Rating4.8 (12K ratings) — better—
Positive reviews79.7% of reviews—
Number of ratings12K — better—
Update frequencyFortnightlyDaily — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaid—
Best chart rank#8 — better—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.016.2 — better
Further details — not scored
Size94 MB21 MB
Age rating4+4+
DeveloperRunloop LtdSREEHARI P C

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
Show 1 more
  • Calendar integration to track workouts

Timber

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Seconds Pro Interval Timer

No in-app purchases

2 purchases

Timber

Subscriptions1
  • Timber Pro Monthly$1.991 Month
One-time1
  • Timber Pro Lifetime$7.99

Questions

Is Seconds Pro Interval Timer free?
Seconds Pro Interval Timer costs $7.99, with no in-app purchases.
Is Timber free?
Timber is free to download, with in-app purchases available.
Do Seconds Pro Interval Timer or Timber have ads?
Timber shows ads; Seconds Pro Interval Timer does not.
Which is updated more often, Seconds Pro Interval Timer or Timber?
Seconds Pro Interval Timer ships an update fortnightly, and Timber daily. Most recently, Seconds Pro Interval Timer was updated on October 16, 2026 and Timber on September 30, 2026.

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