Comparison

Rounds Timer for CrossFit vs Interval Flow

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

Head to head
About

Rounds Timer for CrossFit

This app helps Apple Watch, iPhone, and iPad users track and manage workouts, including AMRAP and Tabata intervals. Monitor heart rate and receive haptic or audio notifications for seamless training.

Highlights
  • Apple Watch app control
  • Exercise round tracking
  • AMRAP progress counting
  • Tabata interval timer
  • Heart rate monitoring
  • Haptic and audio notifications
Features
Read full description

The app is designed for Apple Watch users but is also compatible with iPhone and iPad. Rounds offers a comprehensive and convenient solution for tracking and managing your workouts right from your wrist. Designed for seamless integration with your Apple Watch, Rounds helps you optimize your workout sessions, maximize your gains, and stay motivated throughout your fitness journey. Key features include: Apple Watch app: Control your workouts directly from your watch, keeping your phone in your pocket. Count exercise rounds on your wrist: Effortlessly track your progress as you complete each round. Count rounds for As Much Reps As Possible exercise: Never lose track of your AMRAP progress again. Tabata training timer: Set up and manage your Tabata intervals for high-intensity workouts. Heart monitoring during training: Stay in the optimal zone and monitor your heart rate to ensure a safe and effective workout. Haptic feedback and audio notifications: Stay focused and receive alerts for workout timers, round transitions, and rest periods. (Premium feature) Audio cues: Enable optional audio cues for workout timers, round transitions, and rest periods. Rounds is the ultimate workout companion that adapts to your needs, helping you become the best version of yourself. Experience a seamless, efficient, and smarter approach to fitness that will have you smashing through your goals and setting new personal records in no time! Download Rounds now and take your fitness game to the next level with advanced workout tracking and management. Privacy Policy: http://sleepybytes.com/privacy-policy/ Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Interval Flow

This app revolutionizes fitness routines with deep customization and advanced tracking for various activities like HIIT, Yoga, and CrossFit. It allows users to create, share, and follow personalized workouts with features like color-coded intervals, real-time progress tracking, and voice assistance.

Highlights
  • Color-coded intervals
  • Customizable circuits
  • Real-time progress tracking
  • Voice assist and search
  • Exercise library
  • Workout sharing
Features
Read full description

Interval Flow: Experience a Workout Revolution Interval Flow is your ultimate fitness companion, designed to transform your workout experience with deep customization and advanced tracking. This versatile app is perfect for a wide range of activities including HIIT, TABATA, CrossFit, Yoga, Pilates, Meditation, and more. With Interval Flow, you can stay focused on your fitness goals while the app handles the details. Key Features: - Color-Coded Intervals: Customize your workout visually with color-coded intervals. Set distinct colors for warm-ups, high-intensity bursts, rest periods, and more, to easily navigate through your routine. - Exercise Library: Build your workouts with ease! Add new exercises or select from the existing ones to tailor your workout to your specific needs. - Real-Time Progress Tracking: Keep a live tab on your workout progress. The dynamic interval list updates in real-time, ensuring you know exactly where you are in your routine. - Customizable Circuits: Create the perfect workout sequence by arranging various exercises into repeatable circuits tailored to your fitness level and goals. - Personalized Interval Warnings: Get timely alerts before an interval ends. Customize the warning sounds to suit your style, ensuring smooth transitions without missing a beat. - Interactive Workflow: Enjoy crafting your workouts with a user-friendly interface that’s as intuitive as it is functional. Setting up your ideal workout regime is now as engaging as the workout itself. - Voice Assist: Let our advanced voice assist guide you through your exercises, announcing what’s next so you can remain focused on your form and intensity. - Voice Search: Quickly find your favorite workouts using voice commands, making your preparation seamless and hands-free. - AirShare: Share your custom workouts with friends or clients effortlessly using AirDrop, enhancing connectivity and interaction. Why Choose Interval Flow? With Interval Flow, you don't just exercise, you experience a revolution in workout efficiency and enjoyment. The app’s intuitive interface and comprehensive customization options make it the optimal companion for anyone serious about fitness. Whether you're powering through a high-intensity session or seeking tranquility in yoga, Interval Flow adapts to your pace and preference. Unlock your potential with Interval Flow – where your workout meets innovation. Interval Flow Subscription: The app includes a 1 month long auto-renewable subscription with a 3-day free trial, which will unlock premium features, like unlimited workouts, timer program editing and autoplay and costs $4.99/ month. It will be charged to your credit card through your iTunes account and will automatically renew unless you canceled at least 24 hours before the end of the current period. Any unused portion of a free trial period will be forfeited when you purchase the subscription. Though your subscription for the current month cannot be canceled, you can turn auto-renewal off in your account settings after purchase. See the instructions here: https://support.apple.com/en-us/HT202039 You can read the terms of use and privacy policy here: https://kapi90.github.io/hiit_timer_privacy_policy.html End User License Agreement (EULA) of the App Store applies: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Rounds Timer for CrossFit4 screens
Interval Flow4 screens

Verdict

The call

The clearest difference is monetization model: Rounds Timer for CrossFit at freemium against Interval Flow's subscription. Rounds Timer for CrossFit also leads on rating (4.9 vs 4.7) and iOS requirement (16.2 vs 18.6). Interval Flow's advantage is ratings volume (168 vs 8). On price, review sentiment, 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

Both are free to download. Rounds Timer for CrossFit sells 2 in-app purchases, starting at $1.99 per month and Interval Flow sells 10 in-app purchases, starting at $4.99 per 3 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Rounds Timer for CrossFit holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Interval Flow has 168 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 50% of Rounds Timer for CrossFit's written reviews are positive against 48% of Interval Flow's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 12, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
Rounds Timer for CrossFit versus Interval Flow: the parameters behind the verdict, then further details
ParameterRounds Timer for CrossFitInterval Flow
PriceFreeFree
Rating4.9 (8 ratings) — better4.7 (168 ratings)
Positive reviews50.0% of reviews — better48.1% of reviews
Number of ratings8168 — better
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium — betterSubscription
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.2 — better18.6
Further details — not scored
Size15 MB20 MB
Age rating4+4+
DeveloperSleepyBytes SIABence Kaposzta

Customer experience

Rounds Timer for CrossFit

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Interval Flow

All ratings168 ratings
Positive93.5%
Neutral2.4%
Negative4.2%
Written reviews27 reviews
Positive48.1%
Neutral18.5%
Negative33.3%

Bugs and requests

Rounds Timer for CrossFit

Not enough reviews yet to summarise bugs or requests.

Interval Flow

Reported bugs

10 issues
  • Programs deleted after update
  • App crashes when adding a program
  • Show/Hide Instructions adds time to interval
  • App defaults to unused workout
  • Cannot permanently skip to end of timed activity
Show 5 more
  • Intervals revert to previous settings
  • App won't remember order of custom circuit interval programs
  • Blank screen after download
  • Cannot get program to open
  • Cannot see bottom of screen on questionnaire

Requested features

5 requests
  • Increase repetitions to 20
  • Streamline adding intervals
  • Make it possible to hide unused workouts
  • Add music integration or option
  • Provide visual instructions for moves

In-app purchases

2 purchases

Rounds Timer for CrossFit

Subscriptions2
  • Monthly$1.991 Month
  • Yearly subscription7 Days trial$11.991 Year
10 purchases

Interval Flow

Subscriptions8
  • 3 Month$4.993 Months
  • 1 Month$9.991 Month
  • 1 Month, 3 day trial3 Days trial$9.991 Month
Show 5 more
  • Annual7 Days trial$14.991 Year
  • 1 Year discounted$25.951 Year
  • 1 Year, 3 day trial3 Days trial$39.991 Year
  • 1 Year$39.991 Year
  • 1 Year Intro month1 Month trial$39.991 Year
One-time2
  • Free Lifetime subscriptionFree
  • Lifetime$24.99

Questions

Is Rounds Timer for CrossFit free?
Rounds Timer for CrossFit is free to download, with in-app purchases available.
Is Interval Flow free?
Interval Flow is free to download, with in-app purchases available.
Which has better reviews, Rounds Timer for CrossFit or Interval Flow?
Rounds Timer for CrossFit is rated higher. Rounds Timer for CrossFit averages 4.9 out of 5 from 8 ratings, while Interval Flow averages 4.7 from 168 ratings.
Do Rounds Timer for CrossFit or Interval Flow have ads?
Neither Rounds Timer for CrossFit nor Interval Flow shows ads.
Which is updated more often, Rounds Timer for CrossFit or Interval Flow?
Rounds Timer for CrossFit ships an update fortnightly, and Interval Flow fortnightly. Most recently, Rounds Timer for CrossFit was updated on September 12, 2026 and Interval Flow on October 15, 2026.

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