Some individual who shall not be named (because i respect -Beesus-'s privacy) kept asking me what are scripts and how to install them on mobile devices. I remember seeing a guide like this before, but after some searching i gave up and decided to write a short one with images for my slow friend. Note: if you are using Apple devices, you are out of luck and Torn PDA is your only real option afaik.
As for what are scripts and where to find them - try Tools & Userscripts forums or commission someone to make you one (like -zero).

Torn PDA / iPhone

1) Open Torn PDA and go to the settings menu (by clicking the three stacked lines at the top-left)



2) Click on 'Advanced browser settings'



3) Make sure "Enable custom user scripts" is turned on and click "Manage scripts"



4) Click the + sign at the top to add a new script (copy-paste the code there) or the pen icon to modify existing scripts.

5) Not all scripts work on PDA, and sometimes you just need to switch the 'Injection time' from Start to End



That's pretty much it. Now when you open the PDA browser, your script should be working.

Android (Kiwi browser)

1) Install Kiwi browser

2) Open your newly installed browser and install Tampermonkey

3) Use the scripts like you would on PC. Clicking the links for most scripts should take you directly to Tampermonkey and you just hit Install

4) If you need to modify a script, click the three dots at the top-right corner of the browser and scroll down until you find Tampermonkey



5) From there, select a script and click Edit



I highly recommend turning on Desktop Site when editing scripts on Mobile, as it can be a pain!

Note: I know some people prefer Yandex browser, and the setup should be pretty similar to Kiwi, but i personally do not like having a Russian government owned web browser on my mobile device :)