Comparison

Seconds Pro Interval Timer vs The Class Plan

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

The Class Plan

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TRANSFORM YOUR TEACHING– REFORMER & MATWORK PILATES The Class Plan is the app that all teachers and fitness enthusiasts like you have long been waiting for. From Korin Nolan (Power Pilates UK, Dynamic Pilates TV) The Class Plan offers a range of streamlined features to help explore new Pilates moves, create class plans in half the time with simple drag-and-drop templates, build an extensive customized workout library, and even share your classes with like-minded professionals. THE NEW MUST HAVE TOOL FOR PILATES LESSON PLANNING By purchasing either the Standard or Pro Subscription in the app, you have access to a range of amazing features including: - Create lesson plans to build your personal class library (8 per month for STANDARD, 50 per month for PRO) - Access 1000s of high-definition instructional exercise videos - Create a visible profile to connect with others - Follow featured instructors and pro subscribers for inspiration - Share your plans with others (PRO Exclusive) - Get involved in monthly events (PRO Exclusive) - Participate in community forum discussions (PRO Exclusive) - Play music alongside your classes with Spotify Integration (PRO Exclusive) 1000s OF EXERCISES IN OUR EVER-GROWING VIDEO LIBRARY Whether you’re on the reformer or on the mat, we’ve got it covered with our huge and ever-growing library of classical, contemporary and dynamic Pilates exercises. - Matwork Classes - Reformer Classes - Classical Pilates - Dynamic Pilates - HIIT Workouts QUICK, EFFICIENT, EASY LESSON PLANNING Take the stress out of class planning. In minutes, you can have a whole class plan ready with minimal effort. Find your moves, add them to your plan, and practice! Simply slot in a constantly updated, diverse range of Pilates exercises to mix and match to create your own lesson plan. TAKE YOUR CLASS PLANNING WITH YOU ANYWHERE With our calendar, you can plan multiple classes ahead for better peace of mind. Keep track of private Pilates classes and which plans you have made for which. Then, simply open the app up on your iPad or phone during class and you have a simple formatted plan to follow. MIX-AND-MATCH CREATIVITY With multiple categories and filtering system, easily select the exercises you want and simply drag and drop each exercise into your Class Plan. Select exercises suitable for different sports training, targeting certain parts of the body or for different levels of intensity and difficulty. SHARE CLASSES WITH LIKE-MINDED PROFESSIONALS Join the Class Plan Community. Learn about lesson planning, experience new styles, or simply chat with other Pilates lovers! Our community features create a unique community of instructors and communities sharing their experiences to help everyone grow their practices and studios! As a PRO member, you can also share your class plans with others, spreading your expertise and gaining followers who love your style! Terms of Use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ To access all features and content you can subscribe to The Class Plan on a monthly or yearly basis with an auto-renewing subscription right inside the app.* Pricing can vary by region and will be confirmed before purchase in the app. In app subscriptions will automatically renew at the end of their cycle. * All payments will be paid through your iTunes Account and may be managed under Account Settings after the initial payment. Subscription payments will automatically renew unless deactivated at least 24-hours before the end of the current cycle. Your account will be charged for renewal at least 24-hours prior to the end of the current cycle. Any unused portion of your free trial will be forfeited upon payment. Cancellations are incurred by disabling auto-renew

Screenshots

Seconds Pro Interval Timer4 screens
The Class Plan4 screens

Verdict

The call

The clearest difference is price: The Class Plan at Free against Seconds Pro Interval Timer's $7.99. The Class Plan also leads on iOS requirement (16.5 vs 18.0). Seconds Pro Interval Timer's advantage is in-app purchases (none vs 6) and chart position (#10 vs unranked). On update cadence and ads 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

The Class Plan is free to download; Seconds Pro Interval Timer costs $7.99 up front. The Class Plan sells 6 in-app purchases, starting at $22.99 per month. Seconds Pro Interval Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Seconds Pro Interval Timer ships an update fortnightly, The Class Plan every 3 weeks. The most recent releases landed on September 24, 2026 and May 20, 2026 respectively.

Scorecard5 real differences · 6 level
Seconds Pro Interval Timer versus The Class Plan: the parameters behind the verdict, then further details
ParameterSeconds Pro Interval TimerThe Class Plan
Price$7.99Free — better
Rating4.8 (12K ratings) — better—
Positive reviews79.9% of reviews—
Number of ratings12K — better—
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
Best chart rank#10 — better—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS18.016.5 — better
Further details — not scored
Size94 MB25 MB
Age rating4+4+
DeveloperRunloop LtdThe Class Plan LTD

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

The Class Plan

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Seconds Pro Interval Timer

No in-app purchases

6 purchases

The Class Plan

Subscriptions6
  • Standard Monthly (3)$22.991 Month
  • Standard Monthly (4)$22.991 Month
  • Pro Monthly Subscription (3)$29.991 Month
Show 3 more
  • Pro Monthly Subscription (4)$29.991 Month
  • Pro Monthly Subscription$29.991 Month
  • Standard Monthly Subscription$29.991 Month

Questions

Is Seconds Pro Interval Timer free?
Seconds Pro Interval Timer costs $7.99, with no in-app purchases.
Is The Class Plan free?
The Class Plan is free to download, with in-app purchases available.
Do Seconds Pro Interval Timer or The Class Plan have ads?
Neither Seconds Pro Interval Timer nor The Class Plan shows ads.
Which is updated more often, Seconds Pro Interval Timer or The Class Plan?
Seconds Pro Interval Timer ships an update fortnightly, and The Class Plan every 3 weeks. Most recently, Seconds Pro Interval Timer was updated on September 24, 2026 and The Class Plan on May 20, 2026.

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