Anything Mod is a stereo audio effect plugin
and a project to make it grow, so far it is a
reverse delay, a ring modulator, a waveshaper, a
comb filter, and a glitch generator, but it's not a
multi-effect in the standard meaning.
Tube Gain Booster is a stereo, quick, audio
level booster, compressor and saturator.
TGB raises the gain of the source input using
waveshaping and compressing the dynamic range of the
audio signal. The TGB algorithm can model the sound
of a tube amplifier to some extent, since the
carefully designed waveshaper has a "bias" that
depends on the input level and the harmonics profile
of "mode 2" gets pretty close to the one of the
triode tube saturation.