ザンレコ (Overtime Evidence Recorder) is an Android app designed for those who work overtime and need to document their working hours. It provides a solution for individuals without traditional time card systems to easily leave evidence of their overtime. The app has gained recognition for its effectiveness in helping employees secure overtime pay, with some earning substantial amounts in just a few months.

One of the key features of ザンレコ is its ability to automatically record and prove time at work using GPS, eliminating the need for daily stamping. Users can manage overtime hours effortlessly, with the app designed to serve as admissible evidence in legal proceedings. Additionally, the app offers functions to estimate overtime pay and provides access to attorneys specialized in overtime charges.