Chart standing · US
What changed · US
Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.
FM performance improvements
Price & rating history · US
Reconstructed from the listing changes AppTracker has observed in this storefront, so each line starts at the first change on record.
Average rating
About
RDX turns your iPhone, iPad, Mac or Android into a complete librarian for classic 6-operator FM (.syx) cartridges — with real preview. Open .syx banks (32 or 64 voices) and HEAR every patch instantly, played by a faithful 6-operator FM engine, right on your device. No cloud, no account, no subscription. • Real FM preview — play each voice on its own or stack several in a layer • Velocity-sensitive keyboard + sustain pedal (CC64) + the authentic DX7 velocity curve • Organize your collection: rename, drag to reorder, group, delete and merge voices • Export fresh .syx cartridges for your DX7 or other apps • Original "RSJB Signature" factory bank included — electric pianos, pads, strings and organs • Multiplatform: iPhone, iPad, Mac, Android and Web — plus an AUv3 plugin to play inside AUM, GarageBand, Logic and more • One-time purchase. Everything stays on your device. Built for DX7 owners, FM patch collectors, and anyone who wants to explore FM synthesis without the hardware. RDX is an independent product, not affiliated with Yamaha.
What's new · 1.8.0
FM performance improvements
Details