Punty

02 — The challenge

Handling long recordings without losing accuracy, protecting students’ privacy and keeping API costs under control — three constraints that often conflict.

03 — The solution

Transcription runs entirely on-device with Whisper: the audio never leaves the phone, guaranteeing privacy and eliminating transcription costs even for hours-long lectures. The text is then processed by GPT-4o to produce organised notes faithful to the content, all inside a native, fluid SwiftUI interface. It is not yet published on the App Store.