Terms & refunds

Last updated 14 November 2026

Using Frequency Lab

You can use Frequency Lab for free, for your own listening, learning and creative work. The free part includes the tone generator, binaural and isochronic beats, 40 Hz clicks, Verify (the mic measurement), the frequency libraries, the Chladni plate, the Rain soundscape, timers, the breathing guides and share links.

Please don't copy, resell or redistribute the app itself, and don't try to get around the Pro unlock.

Frequency Lab Pro

• What it is: a one-time purchase that unlocks dreamscapes, the other soundscapes (waves, wind, droplets, colored noise), the live visual scenes (including the liquid dish), saving your own sessions and templates, and the guided programs (Wind-Down, Focus Builder, Calm Week) after their free first step.
• No subscription: you pay once. There is nothing to cancel and nothing renews.
• Free trial (website): every device gets 7 days of Pro the first time it opens the app. The trial asks for no payment details, so nothing is charged when it ends. After it ends the free part keeps working.
• Your license key (website): your receipt email contains a license key. Enter it in the app (tap Get Pro, or the "days of Pro" chip at the top while your trial runs, then I have a key) to unlock Pro on your own devices. The key is for you; please don't share or sell it.
• Offline: once a key is activated, Pro keeps working offline. The app re-checks the key with Lemon Squeezy about once a week when you are online.
• In the iPhone app: Pro is sold through Apple's in-app purchase, and Apple's terms apply to that purchase. Restore it on another iPhone, or after reinstalling, with the same Apple Account (Get Pro → Restore Purchases). The app has no free trial (its free part is the free tier) and doesn't take license keys.
• In the Android app: Pro is sold through Google Play Billing, and Google Play's terms apply to that purchase. It comes back by itself on another Android phone, or after reinstalling, signed in to the same Google account. The 7-day trial works there too, and it charges nothing when it ends.

Who sells it

On the website, Pro is sold through Lemon Squeezy, our online reseller and merchant of record. Lemon Squeezy takes the payment, sends the receipt and handles sales tax or VAT. Their buyer terms also apply to your purchase. The app never sees your card details. In the iPhone app, Apple sells Pro and takes the payment, under Apple's Media Services terms.

Refunds

If Pro isn't for you, you can get a full refund within 14 days of buying it. No questions asked. Email thefrequencylabofficial@gmail.com or reply to your receipt, and include your order number. After a refund, the license key stops working and Pro locks again the next time the app checks the key; everything free keeps working.

Bought in the iPhone app? Refunds for purchases made through Apple are handled by Apple, not by us: request one at reportaproblem.apple.com. If Apple refunds it, Pro locks again in the app; everything free keeps working.

Bought in the Android app? Refunds for purchases made through Google Play are handled by Google: see Google Play's refund page. If Google refunds it, Pro locks again in the app.

Updates to the iPhone app

Besides App Store updates, the iPhone app may download signed updates of its own web files from frequencylab.app (version 1.0: frequency-lab.netlify.app, the same site) and use them from its next launch. These fix and polish what the app already does; new features come as App Store updates.

Health and safety

• Frequency Lab is a sound and visual tool, not a medical device. It does not diagnose, treat or prevent anything. Where the app mentions research, it says what the research found; tuning traditions are labelled as tradition.
• Keep the volume comfortable. Long listening at high volume can damage hearing.
• Don't use sleep, relaxation or beat sessions while driving or doing anything that needs your full attention.
• Some visual scenes flash or pulse. If you are sensitive to flashing light (for example photosensitive epilepsy), don't use them.

The fine print

Frequency Lab is provided as it is. We work hard to keep it accurate and working, but as far as the law allows, we can't promise it will always be available or error-free, and we aren't liable for indirect losses from using it. Nothing here limits rights you have under the consumer laws where you live.

Changes

If these terms change, the date at the top changes with it. A purchase you have already made keeps what it unlocked.

Who we are

Frequency Lab is run by Michael Iwaniec, Illinois, USA ("we"). Lemon Squeezy sells Pro on our behalf as the merchant of record. These terms are governed by the laws of the State of Illinois, USA, without taking away the consumer protections of the country you live in.

Contact

Questions, refunds or a lost key: thefrequencylabofficial@gmail.com.