Open Titan Quest on your phone. Your character should now reflect the changes.
If you cannot use a PC, you can attempt manual hex editing using an app like Hex Editor by NXM.
Method (Very Rough Outline):
Why I advise against this: Titan Quest uses dynamic pointers and compressed blocks. One wrong byte change, and the game will say "Save file corrupt." Unless you are a programmer, stick with TQVault.
Basic Info Tab:
Attributes Tab:
Skills Tab:
Inventory Tab (Unreliable in many editors):
This save editor offers a variety of functionalities that cater to the needs of both casual and hardcore players. Key features include: Titan Quest Android Save Editor