VIP3 by AKAI is described as 'VST host, manager, able to Layer, Split and save MULTIS. Has chord player module. Manage all your presets' and is a music production app in the audio & music category. There are more than 10 alternatives to VIP3 by AKAI for Windows, Mac, Linux and Chrome OS. The best alternative is VSTHost. It's not free, so if you're looking for a free alternative, you could try NanoHost or Pedalboard 2. Other great apps like VIP3 by AKAI are Cantabile, Blue Cat's PatchWork, Bidule and Audified inTone Solo.
NanoHost is not a synthesizer. It is a free, minimalist host application for Windows that can load VST-synths. Furthermore, it can act as a wrapper which converts VST-synthesizers into standalone applications.
Lite version of inTone 2, a live performance fx processor and virtual instrument host. inTone 2 Solo only limited in track numbers, not functionality. Almost 40 FX plugins, 1 track player, 1 audio track, 1 instrument track, 1 AUX and 1 master chain.