Support
Tunelight is a guitar and ukulele tuner for iPhone and iPad. Here are answers to common questions, and how to reach us.
Contact us
cool_zqy@163.comTell us your iPhone or iPad model, its software version and what you were tuning. We read every message and reply as soon as we can.
You can also send feedback, with screenshots, from Settings → Send Feedback in the app. It carries no reply address, so email us if you would like an answer.
Common questions
Tunelight isn’t hearing anything
Tunelight needs the microphone. If you turned it off, tap Turn On on the main screen, or open the Settings app on your iPhone or iPad, tap Tunelight and switch on Microphone.
The reading says “Unclear Sound” or won’t settle
Pluck one string at a time and let the others stop ringing. Keep the phone close to the instrument, away from other noise, and stop turning the peg while the reading settles.
What is the A4 reference?
It’s the pitch everything else is tuned to. Most instruments use 440 Hz, which is the default. With Full Version you can set it anywhere from 436 to 446 Hz in Settings → Reference A4, and go back to 440 at any time.
How do I tune a ukulele?
Tap the tuning name at the top of the main screen, then choose Ukulele under the search field and pick a tuning. Standard and Low G are free; D Tuning and Baritone come with Full Version.
How do I hear a string’s note?
Tap the note name under the string. Tunelight locks that string and plays its note; tap it again to hear it again. Tap Back to Auto when you’re done. It’s free.
How do I tune with a capo or a lower tuning?
Tap the tuning name at the top of the main screen and use Shift to raise or lower every target note by half steps. Capo on fret 3? Choose +3. Shift comes with Full Version.
Can I make my own tuning?
Yes, with Full Version. Tap the tuning name at the top of the main screen, then New Tuning under My Tunings. Set each string’s note and save it. Your tunings are kept only on this device; deleting the app removes them.
Where are my keepsake cards?
Every keepsake card is kept on your iPhone or iPad in Keepsakes: tap Keepsakes under a card, or find it in Settings. Full Version shows them on a timeline and a calendar, where you can open, save, share or delete any card. Without Full Version they are still kept, and you can see how many there are. Deleting the app removes them; cards you saved to Photos stay there.
How do I restore Full Version?
Sign in with the same Apple Account you bought it with, then go to Settings → Full Version → Restore Purchases. Purchases are handled by Apple; for a refund, use Apple’s Report a Problem page.
Which devices does it run on?
iPhone with iOS 26 or later, including iPhone Duo, folded or unfolded, and iPad with iPadOS 26 or later, in portrait or landscape. Tunelight follows your device’s language and is available in English, Simplified Chinese, Traditional Chinese, Arabic, French, Russian, Spanish and Vietnamese.