Comparison

Interval Flow vs WaveMix Sleep Sound Soundscape

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

Head to head
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/

About

WaveMix Sleep Sound Soundscape

Create personalized soundscapes for sleep, focus, and relaxation. Mix nature sounds, white noise, and melodies with a customizable timer. Share and discover mixes from the community.

Highlights
  • Customizable sound mixes
  • Sleep timer
  • Offline listening
  • Background playback
  • Community sound mixes
  • Favorites list
Features
Read full description

● Sleeping sound mixes (nature sounds, white noise & melodies) with a timer. ● Focus, work, meditation, baby sleep, and other noise & sound mixes are available too. Fall asleep faster, sleep better, and relax or focus with WaveMix, the sleep and focus sounds app. Soothe your days with pre-ready mixes divided into categories for every aspect of your life. Or create your own relaxing sound and noise mixes with the built-in sound mixer noise machine. Download WaveMix now to live just a bit better and easier. ◆ SOUNDSCAPES FOR SLEEP, FOCUS, MEDITATION, RELAXATION From white noise, fan sounds for sleeping and relaxation, to thunderstorm sounds to feel like you are in nature, our soundscapes offer relaxation for any activity. Be it sleeping, working, relaxing, meditating, or napping. Our calming sounds and relaxing music mixes are divided into the following categories: ● Sleep ● Focus ● Work ● Calm ● Baby ● Meditate ● Camping Even more, you can favorite any of the mixes and keep them in your favorites list for easy and repeated access. ◆ CUSTOMIZE YOUR AMBIENT SOUNDS EXPERIENCE Use our soundscapes and noisemaker for sleep app to create your own sounds and ambiance: - Set a Sleep Timer: Adjust the time when the sounds will turn off. - Create your own mixes: Explore hundreds of different sounds, noises, and melodies to create your own sound mix. Then save your mixes created with the sound mixer in your mix library. - Adjust volume for each sound: Set custom volume for each sound in your mix. ◆ AVAILABLE OFFLINE & IN THE BACKGROUND Want to truly focus and relax? Turn off the internet and the screen and enjoy the relaxing sounds for sleeping, meditating, or working. ◆ EXPLORE SOUNDSCAPES MIXED BY THE COMMUNITY What makes WaveMix different from other help sleeping apps is the social aspect. You can create and publish your sound mixes to the community, and listen to community public mixes. Because we believe that what helps one person to fall asleep and relax, can help others too. Enjoy! ◆ WAVEMIX: SLEEP SOUNDS APP FEATURES: ● sound mixes for sleeping, focusing, working, meditating, and more ● 100+ sounds available for custom mixes: water and rain sounds, nature sounds, melodies ● create white and green noise ambiance ● set timers ● create and save mixes ● favorite mixes to listen to later ● listen to publicly available mixes from the community ● listen to sounds offline and in the background Now it’s time to fall asleep faster and sleep deeper with our relaxing sounds for sleeping free app. ► Download WaveMix and enjoy more relaxed off time. terms and conditions: https://onatcipli.dev/terms-conditions privacy policy: https://onatcipli.dev/privacy-policy END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Interval Flow4 screens
WaveMix Sleep Sound Soundscape4 screens

Verdict

The call

The clearest difference is monetization model: WaveMix Sleep Sound Soundscape at free with in-app purchases against Interval Flow's subscription. WaveMix Sleep Sound Soundscape also leads on update cadence (every 5 days vs fortnightly) and iOS requirement (12.0 vs 18.6). Interval Flow's advantage is rating (4.7 vs 4.5). On price, review sentiment, 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 Flow sells 10 in-app purchases, starting at $4.99 per 3 months and WaveMix Sleep Sound Soundscape sells 4 in-app purchases, starting at $2.99 per month. 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 4.5. Both are backed by a comparable volume of ratings — 167 and 164 respectively. Written reviews split almost evenly too, at 48% and 48% positive.

UpkeepUpdate frequency

Interval Flow ships an update fortnightly, WaveMix Sleep Sound Soundscape every 5 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Interval Flow versus WaveMix Sleep Sound Soundscape: the parameters behind the verdict, then further details
ParameterInterval FlowWaveMix Sleep Sound Soundscape
PriceFreeFree
Rating4.7 (167 ratings) — better4.5 (164 ratings)
Positive reviews48.1% of reviews — better47.8% of reviews
Number of ratings167 — better164
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.612.0 — better
Further details — not scored
Size20 MB87 MB
Age rating4+4+
DeveloperBence KaposztaOnat Cipli

Customer experience

Interval Flow

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

WaveMix Sleep Sound Soundscape

All ratings161 ratings
Positive88.8%
Neutral2.5%
Negative8.7%
Written reviews23 reviews
Positive47.8%
Neutral17.4%
Negative34.8%

User reviews

Interval Flow

From 167 App Store ratings

What we love

  • 👍 Nicely designed with good features
  • 👍 Unique and brilliantly for keeping fit
  • 👍 Simplicity gets it done

Room to improve

  • 🐛 App crashes on launch
  • 🐛 App doesn't remember interval settings
  • 🐛 App rearranges workout order
  • 🐛 Cannot see questionnaire properly
  • 🐛 Robot voice with no visual instructions

WaveMix Sleep Sound Soundscape

From 164 App Store ratings

What we love

  • 👍 Good variety of sounds
  • 👍 High quality sounds
  • 👍 Enjoyable app
  • 👍 Helpful for sleep
  • 👍 Nice user interface

Room to improve

  • deceptive advertising
  • 💳 Unwanted subscriptions
  • 🐛 Difficult interface
  • 🐛 Small volume sliders
  • 🐛 Non-intuitive icons

Bugs and 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

WaveMix Sleep Sound Soundscape

Reported bugs

12 issues
  • In-app purchases appear free on store
  • Volume sliders too small and insensitive
  • Non-intuitive icons
  • Loops start and stop frequently
  • Second tab has empty columns
Show 7 more
  • Cannot mix audio with Airplay to HomePod
  • Timer doesn't work on hour wheel
  • Free lifetime premium offer is a lie, leads to subscription
  • Link to cancel subscription doesn't work
  • Cannot cancel purchase
  • App billed immediately after download
  • App plays Christmas carols as sleep music

Requested features

7 requests
  • Larger volume sliders
  • Thorough tutorial
  • Longer loops
  • Better loop connections
  • French translation
Show 2 more
  • Lightning sound effects
  • Thunder sound effects

In-app purchases

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
4 purchases

WaveMix Sleep Sound Soundscape

Subscriptions2
  • Premium Monthly3 Days trial$2.991 Month
  • Premium Yearly$34.991 Year
One-time2
  • Premium Lifetime$1.99
  • Premium LifeTime$9.99

Questions

Is Interval Flow free?
Interval Flow is free to download, with in-app purchases available.
Is WaveMix Sleep Sound Soundscape free?
WaveMix Sleep Sound Soundscape is free to download, with in-app purchases available.
Which has better reviews, Interval Flow or WaveMix Sleep Sound Soundscape?
Interval Flow is rated higher. Interval Flow averages 4.7 out of 5 from 167 ratings, while WaveMix Sleep Sound Soundscape averages 4.5 from 164 ratings.
Do Interval Flow or WaveMix Sleep Sound Soundscape have ads?
Neither Interval Flow nor WaveMix Sleep Sound Soundscape shows ads.
Which is updated more often, Interval Flow or WaveMix Sleep Sound Soundscape?
Interval Flow ships an update fortnightly, and WaveMix Sleep Sound Soundscape every 5 days. Most recently, Interval Flow was updated on October 23, 2026 and WaveMix Sleep Sound Soundscape on October 24, 2026.

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