Comparison

SleepLoop vs Interval Timer MAX

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

Head to head
About

SleepLoop

This app offers a variety of ambient sounds, including brown, pink, green, and white noise, along with over 100 nature sounds like rain and ocean waves. It aims to improve sleep, focus, and anxiety relief through its minimalist design and seamless background playback.

Highlights
  • Brown, pink, green, white noise
  • 100+ nature and rain sounds
  • Minimalist vinyl record interface
  • Seamless background playback
  • Ad-free experience
  • Focus and anxiety relief
Features
Read full description

Discover the profound power of brown noise! Sleeploop offers professional brown, pink, green, and white noise, along with 100+ high-quality rain and natural sounds. The low-frequency characteristics of brown noise effectively block out distractions, promote deep sleep, and enhance focus. Unique vinyl record interface, one-touch playback, minimalist and elegant. Why choose brown noise? Brown noise is deeper and warmer than white noise. Its low-frequency energy is stronger, like a distant waterfall or deep thunder, making it particularly suitable for: • Deep sleep - more effectively masking sudden noises (door slamming, talking) • Enhanced focus - research shows it's especially effective for ADHD users • Anxiety relief - low-frequency sounds soothe the nervous system • Tinnitus relief - low frequencies better mask tinnitus problems Why choose Sleeploop? • 4 professional colored noises: Offers brown, pink, green, and classic white noise. • Minimalist Vinyl Aesthetics: A unique vinyl record interface allows you to watch the record spin and immerse yourself in a pure world of sound. • 100+ Curated Sound Libraries: A rich selection of natural ambient sounds, including rain, ocean waves, streams, campfires, and wind. • Seamless Background Playback: Continue playing even when the screen is locked; easily switch tracks. • Ad-Free and Clean: A premium experience with zero interruptions. Focused on your health and well-being. Complete Sound Library 【4 Colored Noises】 • Brown Noise - Deep and warm, ideal for deep sleep and focus • Pink Noise - Gentle and balanced, suitable for relaxation and soothing babies to sleep • Green Noise - Natural and soothing, suitable for meditation and reading • White Noise - Classic choice, suitable for all scenarios 【Rich Natural Sounds】 • Rain Sounds: Rain in a tent, raindrops on a car roof, drizzle outside a window, thunderstorm night, forest rain • Water Sounds: Waves crashing on the shore, babbling brook, roaring waterfall, dripping water • Natural Environments: Crackling campfire, wind blowing through the trees, frogs croaking at night, birdsong in the forest • Comfortable Environments: Whispers in a café, fan turning, clock ticking, cat purring Suitable for • Insomnia sufferers: The deep frequencies of brown noise can more effectively block out environmental noise, helping you fall asleep quickly. • For those with ADHD and attention deficit: Scientific research confirms that brown noise can significantly improve concentration. • For those experiencing anxiety and stress: Low-frequency sounds can soothe the nervous system and help the brain relax. • For students and working professionals: Concentrate on work or study in noisy environments, or quickly de-stress and relax. • For meditation and yoga practitioners: Green noise and natural sounds provide the perfect background for practice. • For new parents: Pink and brown noise can effectively soothe babies and are gentler than white noise. • For tinnitus sufferers: The low-frequency characteristics of brown noise better mask tinnitus. Scientific Basis for Brown Noise • Sleep Quality: Studies show that low-frequency sounds can increase the proportion of deep sleep. • Improved Concentration: Particularly effective for those with ADHD. • Frequency Characteristics: Brown noise has the strongest low-frequency energy and is closer to the sounds of nature. • Masking Effect: Better at masking sudden noises than white noise. Download Sleeploop now and experience the profound power of brown noise. Let professional colored noise and natural sounds guide you into deeper sleep, a more focused state, and a calmer state of mind. Terms of Service: https://noisesleep.com/Terms Privacy Policy: https://noisesleep.com/Privacy

About

Interval Timer MAX

This app provides a customizable interval timer for various activities like workouts and meditation. It offers a selection of high-quality sounds to enhance your experience.

Highlights
  • Customizable interval timer
  • Workout timer
  • Meditation timer
  • High-quality sound selection
  • Simple interface
Features
Read full description

A simple interval timer app for workouts, meditation, or anything else you need. Lots of high quality sounds to choose from.

Screenshots

SleepLoop4 screens
Interval Timer MAX2 screens

Verdict

The call

The clearest difference is in-app purchases: Interval Timer MAX at none against SleepLoop's 3. Interval Timer MAX also leads on review sentiment (100% vs 75%). SleepLoop's advantage is update cadence (every 10 days vs every 6 months) and ratings volume (13 vs 1). On price, rating, ads 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. SleepLoop sells 3 in-app purchases, starting at $1.99 per month. Interval Timer MAX asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for SleepLoop against 5.0 for Interval Timer MAX. That said, the two scores are not equally well evidenced: SleepLoop has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 75% of SleepLoop's written reviews are positive against 100% of Interval Timer MAX's.

UpkeepUpdate frequency

SleepLoop ships an update every 10 days, Interval Timer MAX every 6 months. The most recent releases landed on October 8, 2026 and September 29, 2026 respectively.

Scorecard6 real differences · 4 level
SleepLoop versus Interval Timer MAX: the parameters behind the verdict, then further details
ParameterSleepLoopInterval Timer MAX
PriceFreeFree
Rating5.0 (13 ratings)5.0 (1 ratings)
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings13 — better1
Update frequencyEvery 10 days — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS17.6 — better26.0
Further details — not scored
Size13 MB16 MB
Age rating4+4+
DeveloperWD StudioThaiGenius LLC

Customer experience

SleepLoop

All ratings13 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews12 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

Interval Timer MAX

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

SleepLoop

Subscriptions2
  • Premium Monthly $1.99$1.991 Month
  • Premium Annual $19.99$8.991 Year
One-time1
  • SleepLoop Premium Lifetime$39.99
None

Interval Timer MAX

No in-app purchases

Questions

Is SleepLoop free?
SleepLoop is free to download, with in-app purchases available.
Is Interval Timer MAX free?
Interval Timer MAX is free to download, with no in-app purchases.
Which has better reviews, SleepLoop or Interval Timer MAX?
SleepLoop and Interval Timer MAX are both rated 5.0 out of 5 on the App Store, from 13 and 1 ratings respectively.
Do SleepLoop or Interval Timer MAX have ads?
Neither SleepLoop nor Interval Timer MAX shows ads.
Which is updated more often, SleepLoop or Interval Timer MAX?
SleepLoop ships an update every 10 days, and Interval Timer MAX every 6 months. Most recently, SleepLoop was updated on October 8, 2026 and Interval Timer MAX on September 29, 2026.

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