How to share Pitch Check with your customers, embed it on your site, and get a custom URL.
Pitch Check is a free pre-visit tool you can give to customers. They play A3, A4, and A5 (or C3, C4, and C5 if you prefer — your choice in advanced settings), and the app tells them whether their piano needs a regular tuning or a pitch correction. You can also set it to check just one note (A4 or C4) instead of three. The result texts back to you, so you can plan time and tools before you arrive.
It's not a tuning replacement — it only checks pitch, not unisons, temperament, or anything you'd actually evaluate in person. It's a heads-up, designed to set expectations before you walk in.
The tuner section in advanced settings holds your name, mobile number, test note family, and notes-to-test count. Fill those in, save, then re-open the dialog — your unique share link sits at the bottom. Copy and send it to customers.
The link pre-fills your contact info so the result text comes back to you, addressed by the customer's name (their SMS app fills in their phone automatically when they tap to send).
Because your name, phone number, threshold, note family, and test count are all packed into the URL. That's how the link "remembers" your settings without the customer needing to install anything, sign up, or configure anything themselves. They open the link, run the check, and the result texts back to you with no friction in between.
If the long URL is awkward to share — see the next section.
For a 3× donation (about $15) using the "Buy me a coffee" button on the main screen, I'll set up a custom short URL on pitchraise.app for you — for example pitchraise.app/yourname.
In the donation message, please paste your full app share link and the short URL you'd like. Quick rules:
/steinway, /yamaha, etc.)I'll set it up ASAP and email you when it's live.
You can drop the app into a page on your site using an iframe. Replace the URL with your share link:
<iframe src="https://pitchraise.app/?n=Your%20Name&p=+15551234567" allow="microphone" style="width:100%;height:760px;border:0;border-radius:12px;"> </iframe>
Two things to watch for:
allow="microphone" is required — without it the browser blocks mic access inside the iframe.Include cents deviation in tuner text — when on, the customer's text-back to you includes the per-note cents readings and the average. Useful if you want to see how far off, not just whether a correction is likely. Off by default because some tuners would rather not be steered by an approximate number.
Include "extra time may be needed" language — when on, the customer's result screen and text-back mention that you may need extra time for a pitch correction. Off by default because some tuners prefer to handle scheduling and pricing conversations themselves.
Pitch Check uses a generic stretch curve to account for inharmonicity. CyberTuner and Verituner build a custom stretch curve from measurements of the specific piano, which is much more accurate.
Pitch Check is a customer-facing pre-visit screen, not a tuning tool. The numbers will be in the right neighbourhood — flat vs. sharp, roughly how far — but they aren't going to match a tuning device measurement to the cent. The readings disclaimer in the SMS (when that toggle is on) tells customers the same thing.
Family: A's (A4 / A3 / A5) for customers who can find A by description, or C's (Middle C / C3 / C5) for customers who'd find Middle C easier. The instructions on screen are tailored to whichever you pick.
Count: 3 notes is the default and gives a much more reliable verdict — outer notes confirm whether the whole piano is drifting together. 1 note is faster but only tells you about the middle of the keyboard.
Pitch Check stays free and donation-supported as long as it's hosted here, with the "Buy me a coffee" button visible. If you'd rather host the app yourself with that button removed, I'm offering this as a one-time setup service for $100.
What the service includes:
What the service does not include: I do not guarantee ongoing support, future updates, or bug fixes. Once you've received the files and your site is up, what happens after that is on you. If I add features here later, they won't automatically show up in your copy.
Why the fee? You're removing my donation channel for your customers, which is fair — but the work that went into building the app is recouped through this page by donations. The service fee compensates for the time spent preparing your copy and a small share of the build work.
To start: email me directly at contact@littletonpiano.com.
Tap the Buy me a coffee button on the main app screen, send a 3× donation (about $15), and include your full share link plus the short URL you'd like in the message. I'll set it up and email you when it's live.
Custom URLs are best-effort and tied to the project's continued operation. If anything ever changes, I'll give plenty of notice so you can update your printed materials or website link.
Questions or anything weird with the app: leave a note in the same Buy me a coffee message and I'll get back to you.