A–440 Tuning Fork 2.5.10

Simple and effective tuning is made easy with this app. With just a single tap, you can produce a tone without any hassle.

But the app doesn't stop there. It offers the option to set up a Siri Shortcut directly within the app, saving you the trouble of opening it every time.

And if you're looking for even more convenience, you can add the Siri Shortcut to your Home Screen, Dock, and Shortcuts Widget. This takes your tuning experience to the next level.

When it comes to tuning to specific frequencies, this app has got you covered. You can adjust the frequency anywhere from 435 to 445 Hz. So if you need to tune to A–443, it's not a problem.

The app also works perfectly with Slide Over on an iPad, particularly when using A–440. You have the ability to start and stop the tone at will, making it incredibly useful.

For those who want to try out the app before committing, there is a 14-day trial available. It can be activated through a free purchase in the App Store. After the trial expires, the app will be disabled until you decide to purchase a license.