DPI Changer

WARNING: You're changing the dimensions of your display with this app! Unless you know what you're doing, there's a good chance you will break your device. I cannot be held responsible for what you do wrong. I can certainly help you fix it, though. The app should revert 20 seconds after hitting Apply unless you hit OK on the alert that comes up.

Sometimes you just don't like the size of the items on your screen. If you're lucky, your phone's software has its own DPI changer of sorts, where you can choose among a few different presets, but what if you want more options, or you aren't one of the lucky few with that feature?

Well, this app aims to fix that problem on any Android device running 4.1 or later. There are quite a few apps out there that change your DPI, but this one doesn't actually require root, even if you aren't running Nougat. You will have to reboot if you aren't rooted, but hey, that's better than being around a computer all the time to use ADB, right?

There are instructions in the app for the setup and usage.

IMPORTANT:

- I don't know if this will work on every device running Android 4.1+. I was able to test it on an emulator running 4.1, along with various LG and Samsung devices on Marshmallow and Nougat, but that obviously doesn't include everything. Send some feedback if it isn't working for you, and include your device + Android version.

- Non-root mode requires you to execute a one-time ADB command (unless you uninstall and reinstall the app). From then on, you don't need a computer at all.

- Avoid setting the DPI below 72. I don't specifically know what happens, but I know Android tools prevent this from happening by default. I will build the limit into this app in a future update.

XDA Thread: https://forum.xda-developers.com/android/apps-games/app-dpi-changer-t3601633