It is the simplest phone app. When you first tap (start), the initial settings will start, so please enter your phone number. It doesn't matter if it's half-width or full-width, even if there's a hyphen in between. Next time, just tap the icon to call that phone number. Due to the nature of the app, only one phone number can be registered.
Even the elderly and children who have difficulty operating a smartphone can easily make a call to the automatically registered phone number with just one tap. If you remove the lock screen on your smartphone, you only have to do it once to look at the screen and make a call. This is the easiest app to use when making calls on your smartphone. The icon is also in the shape of a phone, making it easier to see. If you have difficulty configuring the settings yourself, a family member should do it for you.
If you want to perform the initial settings again (if you want to change the registered phone number), please delete the app folder (directcall) once. The phone number is recorded in a text file in the directcall folder, so it can be changed by directly rewriting it.
No ads. This is a free app. Due to the nature of the app, we will use your phone as an authority, but please use it with confidence as there is no data transmission function and no user data will be leaked to us.

If you wish to register another number, there is another app (Direct Call 2) with the same functionality, so please use it as well.

Supervised by a medical doctor
Provided by rakusandou
https://rakusando.themedia.jp/