Apps similar to Complexer include iZotope Ozone. It's paid, but Rough Rider 3 is free. Other options are Fabfilter Pro C, Maximus, TDR Kotelnikov and Comp87. In total there are eight Music Production Apps like Complexer for Windows, Mac, iPhone and iPad.
As the industry’s most comprehensive mastering suite, Ozone 8 adds to its legacy by introducing new intelligent signal processing, spectral shaping, Tonal Balance Control, and more. It’s the smartest version of Ozone yet.
United States
FabFilter Pro-C 2 is a high-quality compressor plug-in for the most demanding engineers. Whether you need subtle mastering compression, an upfront lead vocal, that magic drum glue or deep EDM pumping: Pro-C 2 gets the job done with style!
Netherlands
EU
Maximus delivers transparent peak limiting and volume maximization without coloration of the processed sound, excelling equally well as a final mastering plugin or as a per-track effect. It's a compressor plugin that applies level maximization via compression and/or limiting...
BelgiumEU
TDR Kotelnikov is a wideband dynamics processor combining high fidelity dynamic range control with deep musical flexibility. As a descendant of the venerable TDR Feedback Compressor product family, Kotelnikov has directly inherited several unique features such as a proven...
GermanyEU
Rough Rider is a compressor effect available as VST and Audio Unit plugins for Windows or Mac an as an Inter-App Audio compatible effect for iOS devices.
United States
Comp87 is an easy to use zero latency audio compressor plug-in, capable of adding compression, punch and saturation to individual or grouped tracks in the project.
HoRNet Multicomp Plus MK2 is a compresso plugin with 5 different compression modes, visual representation of the compression process and sidechain.
ItalyEU
NYCompressor is a compressor plugin for Windows, Mac and iOS, available in VST and Audio Unity plugin format.
GermanyEU
