Pro-A5 Synth + AUv3

Pro-A5 Synth + AUv3 points straight at people who want a synthesizer inside an iPhone or iPad music setup, with AUv3 support for host apps that can load plug-ins. By our assessment, that plug-in format is the useful part here, because it lets the synth sit inside a larger mobile project instead of living on its own. The catch is the same one that follows many synth apps: the name promises a focused instrument, so the ceiling is sound design and integration rather than a full production environment. In practice, this kind of app is for tweaking patches, playing parts, and moving ideas into a host app without much friction. Compared with a general music workstation, Pro-A5 Synth + AUv3 sounds narrower but also more deliberate about what it does. The Astrina catalogue files it under Music, which matches that role.