Comparison

Liminal Flow vs ADHD Sound App

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

Head to head
About

Liminal Flow

Experience immersive soundscapes designed for meditation, sleep, focus, and deep relaxation. This app generates unique, evolving audio experiences to help regulate your nervous system and cultivate presence. It supports various uses, from personal wellness to professional client sessions.

Highlights
  • Infinitely evolving soundscapes
  • Supports sleep and meditation
  • Enhances focus and creativity
  • Nervous system regulation
  • Designed for deep listening
  • Sound refuge for relaxation
Features
Read full description

Find Your Flow Take a digital sound bath with music designed for meditation, sleep, focus, and deep relaxation. Infinitely Evolving Our music is never the same twice. Simple musical elements weave together into unique, immersive soundscapes—which we call flows—every time you listen. A Sound Refuge Regulate your nervous system. Cultivate presence and stillness with soundscapes that ground you, calm you, and connect you to something deeper. Liminal Space: The Threshold of Change Between light and dark, sleep and waking, and our inner and outer worlds, there is a liminal space—a place of transformation where silence and sound converge to create new possibilities. Flow State: Presence in Motion In flow, we are fully present, effortlessly unfolding our energy into the world with ease and mastery. Liminal Flow exists in that space—between silence and sound—where creation and transformation resonate. Designed for Deep Listening Use Liminal Flow to support: • Sleep & Meditation • Focus & Creativity • Nervous System Regulation • Psychedelic Journeys • ADHD & Behavioral Modulation • Hospice & Healing • Client Sessions for Wellness Professionals The Art of Slow Sound Most music moves faster than we realize. Our music invites you to slow down. Expansive, fluid, and deeply intentional, it moves at the pace of breath, inviting your body and mind into a state of relaxation. Terms of Service https://www.termsfeed.com/live/2cb7bfdd-75aa-4eb6-aaa7-015ef21b8270 Privacy Policy https://www.termsfeed.com/live/7551090f-4841-4bc8-9a10-6da90f4aea06

About

ADHD Sound App

This app uses personalized sound therapy and brain-stimulating exercises to improve focus, relaxation, and sleep. It offers an ADHD-friendly mode to help users manage distractions and enhance mental clarity naturally.

Highlights
  • Personalized sound therapy
  • Brain-stimulating exercises
  • Focus enhancement
  • Stress reduction
  • Deeper sleep promotion
  • ADHD-friendly mode
Features
Read full description

ADHDFlow helps quiet mental noise with ADHD-friendly soundscapes, app blocking, and personal listening insights. Whether you want to stop doomscrolling, get into deep work, study longer, calm down, or fall asleep more easily, ADHDFlow gives your mind a steadier place to land. Choose your goal: Sleep, Deep Focus, Calm Down, Study, or Work. ADHDFlow refreshes your recommendations around what you need right now, from gentle sleep sounds to steady color noise, rain, fan hums, binaural-style tones, and relaxing nature blends. ADHD-FRIENDLY SOUNDSCAPES Explore soundscapes made to help you settle, focus, and unwind: * Brown noise, green noise, pink noise, and white noise * Rain, thunder, ocean waves, forest creek, city night, and fan sounds * ADHD Frequency and binaural-style sound options * Calm ADHD Brain, Work in Deep Focus, Soft Pink Noise, 2 Hz Binaural Beats, and more * Recently Played and Favorites for fast access BLOCK DISTRACTING APPS ADHDFlow can help protect your focus session from distracting apps. Choose which apps stay allowed, then turn on Block Apps while you work, study, relax, or wind down. App blocking uses Apple Screen Time permission. Your sensitive Screen Time data stays protected by Apple and does not leave your device. SEE WHAT TRULY CALMS YOU Your Journey shows how you use ADHDFlow over time. Track listening by goal across the week, month, or past 3 months, and see which soundscapes you return to most for sleep, focus, calm, study, and work. BUILT FOR DAILY ROUTINES ADHDFlow includes a sleep and focus timer, fade-out support, background audio mode, stereo balance with Tune Tone, AirPlay support, goal-based recommendations, favorites, recent sounds, and personal listening insights. A CALMER WAY TO FOCUS ADHDFlow is not about forcing your brain to work harder. It is about giving it better conditions: steady sound, fewer distractions, and simple insight into what actually helps you feel calmer, sharper, and more in control. DISCLAIMER ADHDFlow is a wellness and relaxation app, not a medical device or treatment for ADHD, insomnia, anxiety, or any health condition. Results vary. If you have medical concerns, please consult a qualified professional. SUBSCRIPTION ADHDFlow offers monthly and yearly auto-renewing subscription options to get unlimited access to all content in the app. Payment will be charged to your Apple ID account at the confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Privacy policy: https://bettersleeprise.com/privacy-policy Terms of service: https://bettersleeprise.com/terms Feedback: support@bettersleepcycle.com

Screenshots

Liminal Flow3 screens
ADHD Sound App4 screens

Verdict

The call

The clearest difference is monetization model: Liminal Flow at free with in-app purchases against ADHD Sound App's subscription. Liminal Flow also leads on ads (none vs shown) and rating (5.0 vs 4.6). ADHD Sound App's advantage is update cadence (every 2 weeks vs every 2 months) and ratings volume (144 vs 4). On price, 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. Liminal Flow sells 4 in-app purchases, starting at $4.99 per month and ADHD Sound App sells 12 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Liminal Flow holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: ADHD Sound App has 144 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Liminal Flow ships an update every 2 months, ADHD Sound App every 2 weeks. The most recent releases landed on September 14, 2026 and September 19, 2026 respectively.

Scorecard6 real differences · 4 level
Liminal Flow versus ADHD Sound App: the parameters behind the verdict, then further details
ParameterLiminal FlowADHD Sound App
PriceFreeFree
Rating5.0 (4 ratings) — better4.6 (144 ratings)
Positive reviews—45.5% of reviews
Number of ratings4144 — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better18.6
Further details — not scored
Size105 MB80 MB
Age rating4+4+
DeveloperLiminal Flow LLCBetter Sleep Rise Elite

Customer experience

Liminal Flow

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ADHD Sound App

All ratings144 ratings
Positive91.7%
Neutral1.4%
Negative6.9%
Written reviews11 reviews
Positive45.5%
Neutral0.0%
Negative54.5%

In-app purchases

4 purchases

Liminal Flow

Subscriptions4
  • Monthly$4.991 Month
  • Monthly$9.991 Month
  • Annual$39.991 Year
Show 1 more
  • Annual$59.991 Year
12 purchases

ADHD Sound App

Subscriptions11
  • Mellow Premium$4.997 Days
  • Mellow Premium3 Days trial$4.997 Days
  • Mellow Premium$9.991 Month
Show 8 more
  • UniSleep Premium$9.991 Month
  • Mellow Premium$24.991 Year
  • Mellow Premium7 Days trial$24.991 Year
  • Mellow Premium1 Month trial$24.991 Year
  • UniSleep Premium3 Days trial$29.991 Year
  • Mellow Premium7 Days trial2 variants$39.991 Year
  • Mellow Premium1 Month trial$39.991 Year
  • ADHD Sound Premium7 Days trial$47.991 Year
One-time1
  • UniSleep Premium Lifetime$59.99

Questions

Is Liminal Flow free?
Liminal Flow is free to download, with in-app purchases available.
Is ADHD Sound App free?
ADHD Sound App is free to download, with in-app purchases available.
Which has better reviews, Liminal Flow or ADHD Sound App?
Liminal Flow is rated higher. Liminal Flow averages 5.0 out of 5 from 4 ratings, while ADHD Sound App averages 4.6 from 144 ratings.
Do Liminal Flow or ADHD Sound App have ads?
ADHD Sound App shows ads; Liminal Flow does not.
Which is updated more often, Liminal Flow or ADHD Sound App?
Liminal Flow ships an update every 2 months, and ADHD Sound App every 2 weeks. Most recently, Liminal Flow was updated on September 14, 2026 and ADHD Sound App on September 19, 2026.

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