Comparison

Seconds Pro Interval Timer vs Fit Pro Manager

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

Fit Pro Manager

Manage your client relationships and billing from your mobile device. This app serves as a portable extension of a comprehensive CRM and billing system, designed for professionals on the go.

Highlights
  • Client relationship management
  • Billing and invoicing
  • Mobile access to CRM
  • Portable billing system
  • Professional management tool
Features
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The mobile version of your favorite CRM and Billing System.

Screenshots

Seconds Pro Interval Timer4 screens
Fit Pro Manager4 screens

Verdict

The call

The clearest difference is review sentiment: Seconds Pro Interval Timer at 80% against Fit Pro Manager's 0%. Seconds Pro Interval Timer also leads on rating (4.8 vs 1.0) and ratings volume (12K vs 2). Fit Pro Manager's advantage is price (Free vs $7.99) and iOS requirement (15.6 vs 18.0). On update cadence, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Fit Pro Manager is free to download; Seconds Pro Interval Timer costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Seconds Pro Interval Timer holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Seconds Pro Interval Timer has 12K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 80% of Seconds Pro Interval Timer's written reviews are positive against 0% of Fit Pro Manager's.

UpkeepUpdate frequency

Seconds Pro Interval Timer ships an update fortnightly, Fit Pro Manager every 3 weeks. The most recent releases landed on September 30, 2026 and August 2, 2026 respectively.

Scorecard7 real differences · 4 level
Seconds Pro Interval Timer versus Fit Pro Manager: the parameters behind the verdict, then further details
ParameterSeconds Pro Interval TimerFit Pro Manager
Price$7.99Free — better
Rating4.8 (12K ratings) — better1.0 (2 ratings)
Positive reviews79.9% of reviews — better0.0% of reviews
Number of ratings12K — better2
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#8 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.015.6 — better
Further details — not scored
Size94 MB56 MB
Age rating4+17+
DeveloperRunloop LtdFitProTracker

Customer experience

Seconds Pro Interval Timer

All ratings12,069 ratings
Positive94.7%
Neutral1.9%
Negative3.4%
Written reviews1,506 reviews
Positive79.9%
Neutral6.0%
Negative14.1%

Fit Pro Manager

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

Fit Pro Manager

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Seconds Pro Interval Timer

No in-app purchases

None

Fit Pro Manager

No in-app purchases

Questions

Is Seconds Pro Interval Timer free?
Seconds Pro Interval Timer costs $7.99, with no in-app purchases.
Is Fit Pro Manager free?
Fit Pro Manager is free to download, with no in-app purchases.
Which has better reviews, Seconds Pro Interval Timer or Fit Pro Manager?
Seconds Pro Interval Timer is rated higher. Seconds Pro Interval Timer averages 4.8 out of 5 from 12K ratings, while Fit Pro Manager averages 1.0 from 2 ratings.
Do Seconds Pro Interval Timer or Fit Pro Manager have ads?
Neither Seconds Pro Interval Timer nor Fit Pro Manager shows ads.
Which is updated more often, Seconds Pro Interval Timer or Fit Pro Manager?
Seconds Pro Interval Timer ships an update fortnightly, and Fit Pro Manager every 3 weeks. Most recently, Seconds Pro Interval Timer was updated on September 30, 2026 and Fit Pro Manager on August 2, 2026.

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