Empress runs a compact house spec: Program Change recall, a dedicated save CC (CC 39 with slot value), and a mode‑formula selector where the wire value encodes category and submachine in a single byte. The Echosystem extends that with a dual‑engine structure — two independent delay engines, each with 43 sub‑modes, combined by a 4‑state routing selector. 2 available now.
In the app today. Every one built to spec.
Dual‑engine delay. 2 engines, 43 sub‑modes each, 14 controls. Routing between engines — Trails, Parallel, Serial, Left‑Right — is itself a CC.
12 reverb machines, 32 sub‑modes, 233 controls. Hall through Lo‑Fi, each with its own parameter set.
2 manuals. The Reverb profile runs to 233 controls across 12 machines and 32 sub‑modes — the mode‑formula encoding means every sub‑mode is a distinct wire value from a sparse 128‑slot space. The Echosystem layers a dual‑engine structure on top: two independent trees, each a 43‑submode version of the same machine list, routed against each other. Both required reading the formula before reading the map.
Available on iPhone, iPad and Mac. Connects over Bluetooth LE MIDI, Wi‑Fi (RTP‑MIDI) and USB. Bluetooth pairing happens inside the app on iPhone and iPad; on Mac you pair in Audio MIDI Setup.
No account. No ads. No cross‑app tracking. Anonymous usage telemetry only — no personal data. iCloud sync across your devices at no extra cost, with a local fallback if iCloud isn’t available. Presets, songs and full backups export as files.
Every profile is built from the manufacturer’s manual and audited before it ships. The full list is here — what’s in the app today, and what’s built and releasing.