ROTCodeSetLeader is an app for ROT (rotate) encoding and decoding. It supports ROT5 (numeric) and ROT13 (alphabetic). The interface uses a dark theme with animated backgrounds and custom-styled controls. Users can encode/decode text, copy results, clear inputs, and view examples. It’s built with Swift and UIKit, with a tabbed layout separating ROT5, ROT13, and decode. Useful for learning ciphers, simple obfuscation, and basic text transformation.