Comparison

Interval Timer vs FitSW 2.0

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

Head to head
About

Interval Timer

This interval timer is designed for HIIT and interval training. Easily set work and rest periods, sets, and rounds to guide your workouts. It supports background operation and music playback, with an Apple Watch companion app for heart rate monitoring.

Highlights
  • Customizable work and rest periods
  • Set number of sets and rounds
  • Background operation support
  • Music playback compatibility
  • Apple Watch integration
  • Heart rate monitoring (Apple Watch)
Features
Read full description

This app is handy interval timer that helps you keep track of your work and rest periods during your HIIT interval training and workouts. The application is very easy to use, enter the Work, Rest, Sets, Rounds and start workout. You can listen to music during workouts or use the timer in the background. There is also app on the Apple Watch that will allow you to monitor your heart rate during workouts. Apple Watch app features: - iCloud sync with iPhone - integration with the Health app - monitoring heart rate during workouts

About

FitSW 2.0

Features
Read full description

FitSW 2.0 helps thousands of trainers track their clients' fitness from any type of device. Quickly Build Workouts, Plan Diets, Track Progress, Schedule Appointments, Accept Payments, and more. Whether you are an online or in-person trainer, FitSW 2.0 enables you to provide a complete health & fitness tracking solution to help your clients excel with the following: Workout Management Create, track, and record multiple fitness clients' workouts online in one central location. Utilize our extensive exercise database complete with exercise demos. Choose from nearly 1000 different exercises or add your own! Build detailed gym workout plans from the palm of your hand. Progress Tracking Track and chart client fitness progress on anything, from body-fat to waist-line to bench-press max. Charts are fully customizable. All of your entered data gets automatically transformed into beautiful looking graphs. Print or email these progress tracking graphs with the click of a button. Keep your fitness clients motivated by showing them the progress that they have made. Comparison Pictures Take progress pictures in the app and store the photos. Nutrition & Diet Planning Easily create meal plans, record food intakes, and keep tabs on fitness clients with editable diet logs. Our food database has nutrition info on thousands of foods. Add your own custom foods and nutrition information in seconds. Goal / Task Tracking Assign goals or tasks to your clients that you both can monitor through the app. This helps the personal trainer motivate clients and keeps them engaged. Scheduling Clients can request appointments on your calendar that you can approve. Both you and your clients get your own personal calendar. Managing your schedule is effortless. PAR-Q Forms Have clients fill out PAR-Q forms on their phone or at their computer that the trainer can access from anywhere. Trainers can create custom PAR-Q's or use the standard one. All of these features will enable you to grow your personal training business by enabling you to do the following: Increase Client Engagement & Improve Client Results Easily track progress to keep personal training clients involved, motivated and on-track. Progress tracking allows personal trainers to understand what works best for a fitness client and plan tailored workouts and meal plans based on what has previously worked. Graphically track any personal training stat: weight, BMI, body fat, maximum benchpress, and muscle measurements are just a few examples. Create tasks for your clients to increase their engagement. You also have the ability to contact clients directly through the app, making it easier than ever to connect with your clients. Train Smarter Quickly create polished personal training workouts online that can be printed or accessed from any mobile device or computer. Plan and track exercises, weights, number of sets, rest times, equipment settings and other parameters needed to help your personal training client succeed. Create your own exercise database complete with exercise videos or exercise picture demonstrations or use ours. Stay organized with a central location to manage all of your fitness clients, their goals, contracts, documentation, your personal training schedule, and personal training client progress pictures. FitSW 2.0 is available on every platform and all of your data will automatically sync. This means that you can manage your fitness business from anywhere, at any time. FitSW works with online personal training, in-person training, or for gyms with multiple trainers.

Screenshots

Interval Timer4 screens
FitSW 2.04 screens

Verdict

The call

The clearest difference is in-app purchases: FitSW 2.0 at none against Interval Timer's 1. FitSW 2.0 also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). Interval Timer's advantage is iOS requirement (13.0 vs 15.1). On price 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

Both are free to download. Interval Timer sells 1 one-off in-app purchase. FitSW 2.0 asks for nothing beyond the download.

UpkeepUpdate frequency

Interval Timer ships an update every 2 months, FitSW 2.0 every 3 weeks. The most recent releases landed on October 27, 2026 and August 14, 2026 respectively.

Scorecard4 real differences · 6 level
Interval Timer versus FitSW 2.0: the parameters behind the verdict, then further details
ParameterInterval TimerFitSW 2.0
PriceFreeFree
Rating4.9 (250 ratings) — better—
Positive reviews84.1% of reviews—
Number of ratings250 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size12 MB86 MB
Age rating4+4+
DeveloperYosyp HameliakMacroActive Limited

Bugs and requests

Interval Timer

Reported bugs

9 issues
  • App pauses when phone is locked
  • Sound notifications are inconsistent
  • App doesn't run in background
  • Watch app not opening or syncing
  • In-app purchase issues
Show 4 more
  • Timer not counting when phone is locked
  • Voice/sound stops during exercises
  • Incorrect number of sets displayed
  • App crashes or freezes

Requested features

12 requests
  • Option for different/upbeat voice
  • Ability to reorder saved timers
  • Larger font size option
  • Vibrate option
  • Naming individual sets/exercises
Show 7 more
  • Audio configuration for set completion
  • Syncing workouts with health apps
  • Option to keep app running when phone is locked
  • Customizable warm-up per saved timer
  • Option for giant font size for numbers
  • Ability to move saved timers
  • More sound options

FitSW 2.0

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Interval Timer

One-time1
  • Remove Ads$4.99
None

FitSW 2.0

No in-app purchases

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is FitSW 2.0 free?
FitSW 2.0 is free to download, with no in-app purchases.
Do Interval Timer or FitSW 2.0 have ads?
Interval Timer shows ads; FitSW 2.0 does not.
Which is updated more often, Interval Timer or FitSW 2.0?
Interval Timer ships an update every 2 months, and FitSW 2.0 every 3 weeks. Most recently, Interval Timer was updated on October 27, 2026 and FitSW 2.0 on August 14, 2026.

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