Comparison

Interval 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

Interval Timer

This app provides a customizable round-based timer for various time-based activities, including HIIT, circuit training, and boxing. It features a minimalistic design with big digits and bright colors, offering hand-crafted sounds to maintain focus. Users can create complex workouts, save custom sets, and track their workout history with Apple Health integration.

Highlights
  • Customizable round-based timer
  • Minimalistic design with big digits
  • Hand-crafted sounds for focus
  • Unlimited saved intervals
  • Quick Set feature
  • Apple Health integration
  • Dark Mode support
Features
Read full description

The Interval Timer App is a minimalistic, advanced all-in-one round-based timer for iOS Devices (iPhone / iPad). Create complex workouts or sets and get them visualized simple and minimalistic with big digits, bright colors and hand-crafted sounds to support you keeping the focus. Works for all simple and complex time-based activities - use it for your exercise, hiit, tabata, wod, yoga, running, lifting weights, gym workout, cycling, boxing, stretching or even cooking! Create your own set-library with unlimited saved intervals or just hop into a quick one with the "Quick Set" feature! - Pick from a variety of sounds for different phases and cycles - Separate Sound-Volume Setting - Does not interrupt background music - Phone won't lock automatically during sets - Supports Dark Mode - Battery friendly - Customizable color representation for every set - Save your workout-history with apple health! Create simple second-short or complex hour-long intervals with custom set and cycle durations including custom break- and warmup-lengths, round-counts, sounds and colors. ______________________________________________ APP USAGE INFO & SUBSCRIPTION DETAILS Should you choose to upgrade to a subscription, payment will be charged to your iTunes account at confirmation of purchase. Your subscription renews automatically unless cancelled at least 24 hours prior to the end of the current period, and cancellation of the current active subscription period is not allowed. Auto-renewal may be turned off in your Account Settings in iTunes after purchase. You can also manage your subscriptions in Account Settings after purchase. LICENSED APPLICATION END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://learned-romano-d09.notion.site/Terms-Conditions-4521f83f95f44900931f5887f08b852f Privacy Policy: https://learned-romano-d09.notion.site/Privacy-Policy-3920b87376da4552be9dbc3f0d0d24bf

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

Interval Timer4 screens
Interval Flow4 screens

Verdict

The call

Interval Timer and Interval Flow both sit at 4.8 stars, but that hides the real split: 91% of Interval Timer's written reviews are positive against 48% of Interval Flow's. Interval Timer also leads on monetization model (free with in-app purchases vs subscription) and update cadence (every 2 days vs fortnightly). On price, rating, ratings volume 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. Interval Timer 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

On the App Store both sit at effectively the same score — 4.8 for Interval Timer against 4.7 for Interval Flow. Both are backed by a comparable volume of ratings — 76 and 168 respectively. Written reviews are what separate them: 91% of Interval Timer's written reviews are positive against 48% of Interval Flow's.

UpkeepUpdate frequency

Interval Timer ships an update every 2 days, Interval Flow fortnightly. The most recent releases landed on September 25, 2026 and September 5, 2026 respectively.

Scorecard3 real differences · 7 level
Interval Timer versus Interval Flow: the parameters behind the verdict, then further details
ParameterInterval TimerInterval Flow
PriceFreeFree
Rating4.8 (76 ratings) — better4.7 (168 ratings)
Positive reviews90.9% of reviews — better48.1% of reviews
Number of ratings76168 — better
Update frequencyEvery 2 days — betterFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.6
Further details — not scored
Size19 MB20 MB
Age rating4+4+
DeveloperMizo LLCBence Kaposzta

Customer experience

Interval Timer

All ratings76 ratings
Positive97.4%
Neutral1.3%
Negative1.3%
Written reviews33 reviews
Positive90.9%
Neutral3.0%
Negative6.1%

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

Interval Timer

Subscriptions1
  • Intervals+ Monthly$1.991 Month
One-time1
  • Intervals+ Lifetime$9.99
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 Interval Timer free?
Interval 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, Interval Timer or Interval Flow?
Interval Timer is rated higher. Interval Timer averages 4.8 out of 5 from 76 ratings, while Interval Flow averages 4.7 from 168 ratings.
Do Interval Timer or Interval Flow have ads?
Neither Interval Timer nor Interval Flow shows ads.
Which is updated more often, Interval Timer or Interval Flow?
Interval Timer ships an update every 2 days, and Interval Flow fortnightly. Most recently, Interval Timer was updated on September 25, 2026 and Interval Flow on September 5, 2026.

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