PenTime is a free Android app developed by SunrexTaipei in the Utilities & Tools category. It is a simple drawing app designed for stylus pens and supports most famous stylus pens like Adonit™ - Jot Dash©, Jot Touch©, Jot Script©, Wacom™ - Intuos© Creative Stylus 2, and Sunrex™ - EPN-520. With PenTime, users can draw lines with pen force and enable the "Palm Rejection" feature to make drawing easy.

PenTime offers a clutter-free interface with basic tools like a pen, eraser, and an undo button. It is easy to use and straightforward, making it perfect for beginners and those who want to sketch or doodle on their phones. However, it lacks advanced features like layers, shapes, and fill tools, making it unsuitable for professional artists. Overall, PenTime is a decent app for those who want a simple drawing experience on their Android device.