FabFilter Pro-L 2 vs Tunr

FabFilter Pro-L 2 is a true-peak limiter plug-in for mixing and mastering, with tools for loudness control and transparent sound. It includes eight limiting algorithms and precise true-peak meters. Loudness metering supports EBU R128, ITU-R BS.1770-4, ATSC A/85, and TR-B32, while linear-phase oversampling is available up to 32x. For immersive and surround audio, it supports formats up to Dolby Atmos 9.1.6 with flexible channel linking. Processing options include adjustable look-ahead, attack, and release, external side-chain triggering, an optional DC offset filter, and dithering with three noise-shaping algorithms. FabFilter lists VST, VST3, Audio Units, CLAP, AAX Native, and AudioSuite formats. Desktop requirements are Windows Vista through Windows 11, or macOS 10.13 or later on 64-bit Apple Silicon or Intel; both require a compatible plug-in host or Pro Tools. An iPad version is linked through the Apple App Store. FabFilter offers a fully functional 30-day trial that can be unlocked with a license key. Support includes help files, manuals, FAQs, a user forum, and email sales and technical support.

Tunr is a desktop audio mastering app for macOS and Windows. It analyzes tracks and creates genre-aware masters on the user’s computer, with no internet connection needed for mastering. Auto mode applies a mastering chain; Reference mode uses a chosen track to match tone, dynamics, and loudness. That mode accepts WAV, FLAC, and MP3. Its A/B Mixer supports equal-power crossfades, null and blind tests, loudness matching, and listening in stereo, mono, mid, or side. Batch mode processes queued tracks in sequence with shared settings and saves each result as it finishes. Without a licence key, the free plan renders three masters per machine; mixer comparisons and analysis do not count toward that limit. A free licence key provides unlimited masters on two machines. Tunr is standalone, not a DAW plugin. It supports macOS 11 or later on Apple Silicon and Intel, plus 64-bit Windows 10 or later. The maker says files are never uploaded and the app has no usage telemetry or third-party trackers.