ReleaseCheck is the final check before you export a song and send it to distribution. Put it on the master bus, play the song from start to end, and when you stop you get a report: 13 checks, each marked PASS, WARNING or FAIL. Integrated and short-term loudness (EBU R128 / ITU-R BS.1770-4, the same measurement as DP Meter, verified against ffmpeg), 4× oversampled true peak, clipping and samples above 0 dBFS, inter-sample peaks, dynamics (LRA, PLR, RMS), mono compatibility and bass correlation, L/R balance, excessive low end and infrasound, DC offset, unusually loud transients and clicks in silence, silence at the start, in the middle and at the end, dropouts and invalid samples. Every check keeps the measurement (the numbers) separate from the suggestion (what to do, e.g. how much to back off the limiter), and the timeline shows exactly where each problem happens. You set the targets — streaming, loud master, club, hi-fi, EBU R128, ATSC, podcast, mix for mastering or custom profiles — and every saved pass is re-evaluated instantly. Compare up to 6 passes (saved with the project) side by side: before and after a limiter tweak you see what got better and what got worse. Scanning starts with play in your DAW or manually with START. You can also load the exported WAV, AIFF or FLAC file — then the report checks exactly what you will deliver (format, bit depth, sample rate). Audio passes through bit-perfect, the report is available in Polish and English, and you can copy it to the clipboard or save it as .txt. For producers, mix and mastering engineers and independent artists. The report describes the measured signal — it does not guarantee acceptance by any platform.