Comparison

High Frequency Highway vs Klyva

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

Head to head
About

High Frequency Highway

Explore a library of unique sounds and a binaural beat generator designed to enhance sleep, focus, and relaxation. This app guides users toward higher states of awareness, promoting emotional well-being and inner peace through meditation and sound.

Highlights
  • Unique audios
  • Sleep sounds & melodies
  • Binaural beat generator
  • High Frequency Hub
  • User-friendly interface
  • Stress relief
  • Emotional well-being
Features
Read full description

Sound and frequencies to help you sleep, focus, relax and more! Our unique library of sounds and our binaural beat generator is the gem you're looking for. Play our carefully selected sounds, and you will sleep like a baby. Enjoy the high-quality sleep sounds and wake up refreshed. The purpose of High Frequency Highway is to guide you to the higher states of awareness you desire. We restore an ancient balance through meditation and sleep. The simple app can help you grow your emotional well-being through deep relaxation and meditation. Remove your stress and replace it with an abundance of inner peace. Features: - Unique audios - Sleep sounds & melodies - Binaural beat frequency generator - Simple and user-friendly interface - High Frequency Hub of global information that will empower you and make you grateful to be on earth Privacy Policy: https://www.highfrequencyhw.com/privacyprivacy-policy Terms Of Use: https://www.highfrequencyhw.com/privacyterms-conditions & https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Klyva

Features
Read full description

Klyva is a clean-beauty ingredient scanner for your skincare, makeup and personal-care products. Scan a barcode and get a clear 0–100 clean-beauty score, a full breakdown of every flagged ingredient with published sources, and cleaner alternatives — so you can decide what goes on your skin with confidence. WHY KLYVA IS DIFFERENT - A real, published method — not a black box. Klyva's score is produced by a deterministic, rules-based engine. The same ingredients always produce the same number. It's never AI-generated, never random, and never influenced by brands. - Ingredients, not marketing. Klyva assesses what's actually on the label against published cosmetic-safety references — not a brand's claims. - Honest about what it doesn't know. If an ingredient list can't be confirmed, Klyva tells you, instead of inventing a score. - Private by design. Your camera reads labels on your device. Photos are never uploaded. HOW IT WORKS 1. Point your camera at the barcode. 2. Klyva looks the product up in the open Open Beauty Facts database. If the ingredients aren't on file, just point at the ingredients list and Klyva reads it on-device (no photo ever leaves your phone). 3. Get your score and the flagged-ingredient breakdown with the "why" and a source for each. WHAT KLYVA LOOKS FOR Fragrance and undisclosed perfume, common allergens, parabens, certain preservatives, comedogenic (pore-clogging) ingredients, artificial colours and more — each with a plain-English reason and a published source you can check. FREE — FOREVER - Unlimited scanning — no account required - The full clean-beauty score and verdict - The complete flagged-ingredient breakdown, with every "why" and source - Your recent scan history - No banner ads KLYVA PREMIUM Go further with a subscription: - Personalized-to-your-skin scoring from a short skin quiz - Full Top-rated rankings in every category - Personalized cleaner-pick recommendations, ranked for your skin SUBSCRIPTION Klyva Premium is an auto-renewable subscription, offered monthly or annually (the annual plan includes a 7-day free trial). Prices are shown in the app. Payment is charged to your Apple ID at confirmation of purchase, and the subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://klyva.app/terms Privacy Policy: https://klyva.app/privacy PRIVACY Klyva signs you in anonymously — no name, email or phone number. Label photos are read on your device and are never uploaded or stored. We never sell your data and never share your skin profile. Full details: https://klyva.app/privacy IMPORTANT Klyva is an informational tool, not medical advice. A score is an opinion about a product's ingredients, not a verdict on a brand, and a lower score does not mean a product is unsafe. Always check the physical packaging, and consult a professional for medical or allergy concerns. Questions? support@klyva.app

Screenshots

High Frequency Highway4 screens
Klyva4 screens

Verdict

The call

The clearest difference is in-app purchases: Klyva at none against High Frequency Highway's 10. Klyva also leads on update cadence (every 4 days vs every 2 weeks) and iOS requirement (15.1 vs 17.0). High Frequency Highway's advantage is chart position (#198 vs unranked). On price, 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. High Frequency Highway sells 10 in-app purchases, starting at $1.99 per 7 days. Klyva asks for nothing beyond the download.

UpkeepUpdate frequency

High Frequency Highway ships an update every 2 weeks, Klyva every 4 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 7 level
High Frequency Highway versus Klyva: the parameters behind the verdict, then further details
ParameterHigh Frequency HighwayKlyva
PriceFreeFree
Rating4.7 (673 ratings) — better—
Positive reviews63.1% of reviews—
Number of ratings673 — better—
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#198 — better—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size209 MB38 MB
Age rating4+4+
DeveloperJ JohnsonLegend Business Limited Liability Company

Bugs and requests

High Frequency Highway

Reported bugs

25 issues
  • App crashes randomly
  • App is glitchy
  • Headphones disconnect when using 'Read Your Frequency'
  • Subscription not recognized after purchase
  • App crashes immediately after opening
Show 20 more
  • Cannot log in or restore purchases after getting a new phone
  • Error when trying to change password
  • Cannot register due to confirmation button being covered by keyboard
  • App asks to subscribe even after starting a free trial
  • App crashes after a few minutes of use
  • Cannot upgrade to paid version
  • App refuses to allow access to premium features
  • App closes when cancelling notifications
  • Paid subscription not recognized
  • Headphones don't connect or produce sound
  • App is buggy and buttons are not clickable
  • App crashes when pressing the 3 lines menu
  • Inconsistent continuity of frequency playback
  • Buzzing noise in some frequency recordings
  • App signs out and requires reinstallation to log in
  • App crashes frequently
  • App is buggy and closes when pressing a specific button
  • App doesn't loop sounds correctly
  • App not accessible on MacBook or computer
  • App crashes when trying to open it

Requested features

11 requests
  • Offline mode
  • Website/desktop version
  • More content within specific categories (e.g., sleep, relief)
  • Longer track options
  • Ability to loop sounds
Show 6 more
  • More information on frequencies and how to maximize use
  • Fix for the confirmation button being covered by the keyboard
  • Fix for saved frequencies not saving
  • Fix for the button that closes the app
  • Fix for pop-up notifications every time the app is opened
  • Add remote viewing frequency

Klyva

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

High Frequency Highway

Subscriptions3
  • BePositive Premium3 Days trial$1.997 Days
  • Premium HF User3 Days trial$6.991 Month
  • Special offer 38% off7 Days trial$59.991 Year
One-time7
  • One-time unlock of a paid creation.$0.99
  • Paid track$0.99
  • Unlock Paid Sound – $1.99$1.99
Show 4 more
  • Unlock Sound$2.99
  • Unlock Sound$3.99
  • paidplaylist$9.99
  • Septa Sync$39.99
None

Klyva

No in-app purchases

Questions

Is High Frequency Highway free?
High Frequency Highway is free to download, with in-app purchases available.
Is Klyva free?
Klyva is free to download, with no in-app purchases.
Do High Frequency Highway or Klyva have ads?
Neither High Frequency Highway nor Klyva shows ads.
Which is updated more often, High Frequency Highway or Klyva?
High Frequency Highway ships an update every 2 weeks, and Klyva every 4 days. Most recently, High Frequency Highway was updated on November 3, 2026 and Klyva on October 24, 2026.

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