Comparison

Custom Workout Timer 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

Custom Workout Timer

Design custom workout routines with timed exercises. This app provides spoken prompts for each exercise and countdowns for remaining time. Enjoy your music without interruption during your training sessions.

Highlights
  • Create custom workout routines
  • Timed exercises
  • Spoken exercise prompts
  • Countdown timer
  • Music player integration
Features
Read full description

With this app, you create your own workouts of timed exercises. The app will speak to remind you which exercise to do next, and count down how much time you have left. It doesn't interfere with the music player, so you can listen to your music at the same time.

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

Custom Workout Timer4 screens
Interval Flow4 screens

Verdict

The call

The clearest difference is rating: Interval Flow at 4.7 against Custom Workout Timer's 3.7. Interval Flow also leads on update cadence (fortnightly vs every 6 months) and ratings volume (168 vs 6). Custom Workout Timer's advantage is review sentiment (88% vs 48%) and monetization model (free with in-app purchases vs subscription). On price, 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

Both are free to download. Custom Workout Timer sells 2 one-off in-app purchases 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

Interval Flow holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Interval Flow has 168 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 88% of Custom Workout Timer's written reviews are positive against 48% of Interval Flow's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Custom Workout Timer ships an update every 6 months, Interval Flow fortnightly. The most recent releases landed on June 10, 2026 and September 5, 2026 respectively.

Scorecard6 real differences · 4 level
Custom Workout Timer versus Interval Flow: the parameters behind the verdict, then further details
ParameterCustom Workout TimerInterval Flow
PriceFreeFree
Rating3.7 (6 ratings)4.7 (168 ratings) — better
Positive reviews87.5% of reviews — better48.1% of reviews
Number of ratings6168 — better
Update frequencyEvery 6 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better18.6
Further details — not scored
Size28 MB20 MB
Age rating4+4+
DeveloperEncodia, LLCBence Kaposzta

Customer experience

Custom Workout Timer

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews8 reviews
Positive87.5%
Neutral12.5%
Negative0.0%

Interval Flow

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

In-app purchases

2 purchases

Custom Workout Timer

One-time2
  • 7-day TrialFree
  • Full App$1.99
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 Custom Workout Timer free?
Custom Workout Timer 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, Custom Workout Timer or Interval Flow?
Interval Flow is rated higher. Custom Workout Timer averages 3.7 out of 5 from 6 ratings, while Interval Flow averages 4.7 from 168 ratings.
Do Custom Workout Timer or Interval Flow have ads?
Neither Custom Workout Timer nor Interval Flow shows ads.
Which is updated more often, Custom Workout Timer or Interval Flow?
Custom Workout Timer ships an update every 6 months, and Interval Flow fortnightly. Most recently, Custom Workout Timer was updated on June 10, 2026 and Interval Flow on September 5, 2026.

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