Big fixes and improvements.

• New iCloud Sync switch in Settings. Turn it off if your devices are used with different Quad Cortex units, so each keeps its own library, favorites and names. • Gig View now works in landscape on iPhone. • Your screen stays awake while a Quad Cortex is connected or Gig View is open, so it won't lock mid-gig.

What’s New in 3.6 • Access all 32 banks. The new 1–16 / 17–32 switch gives you presets 129–256 on both Factory and My Presets. • Factory banks 17–32 now show their preset names and scene names. • Your Quad Cortex now follows the list on screen. Choosing Factory or Favorites puts the unit on its Factory presets, and My Presets switches it to My Presets. • Gig View now opens the unit’s own Gig View. The Preset / Scene switch changes the unit’s mode too. • Faster, more reliable iCloud sync between devices.

Cortex Studio 3.5 is a big update. NEW: WIRELESS CONTROL • Plug one device into your Quad Cortex and control it from any other. Pick a preset or scene on your iPhone and your iPad sends it to the unit (needs iCloud sync, part of Pro) • Keep the app open on the plugged-in device NEW LOOK • Redesigned Remote, Devices and Library tabs with dark panels, green selection, a sidebar and bank keys • Built for iPad and iPhone Duo as well as iPhone GIG VIEW • Big 4x2 preset tiles in the Quad Cortex letter colors, with separate Preset and Scene buttons • Scene names for the factory presets MY PRESETS • Name your own slots, add a description, and copy, cut or paste names between them • Sending a tone to a used slot now asks before replacing it ALSO NEW • iCloud sync for tones, favorites, slot names and your current selection • A green "Quad Cortex" or red "No Device" status for your unit • Tone Builder now uses your own free Google Gemini key, with a quick guided setup PRO • A free 30-day trial of everything, including for people updating • Remote, Devices, MIDI, Library and Tone Builder stay free • Wireless Control, Gig View, iCloud sync, slot naming and unlimited saved tones and favorites are a one-time $4.99 unlock. No subscription

What’s New in 3.1 • Gig View: big, colorful preset tiles for playing live, in portrait or landscape on iPhone and iPad • Scene View: tap scenes A to H, or use the scene dropdown. Scene names are included for the factory presets • A fresh look inspired by the Quad Cortex’s own screen, with its typeface • Remote is now the first tab, and the app opens with a short splash screen • Improved layouts for iPad and iPhone Duo: sidebars, wider banks and larger preset names

What’s New - iPad and iPhone Duo compatibility - iCloud sync: your tone library now follows you across your iPhone, iPad and Duo. Saved tones, favorites, MIDI slots and order all stay in sync. - Favorites on Remote: star any factory preset, tap the star or long-press and choose Favorite, and find it in the new Favorites tab. Favorites sync too. - Search on Remote: search factory presets, favorites or your own by name, amp or slot, such as “2A”. - Smoother feedback: MIDI messages now appear as a short pop-up instead of a bar at the bottom.

Updated devices list

Updated to the latest Gemini AI model for improved tone suggestions.

Smarter Artist Tone Accuracy The AI now identifies the exact, historically documented amp used on a recording — not just a stylistically similar substitute. Ask for "Hungry Like the Wolf" and you'll get the Roland JC-120 Andy Taylor actually played. Ask for AC/DC and you'll get the Marshall Plexi, not a generic British amp. Better Cabinet Matching Presets now automatically pair the historically correct cabinet to each amp — Marshall cabs with Marshall amps, Vox cabs with Vox amps, and so on — for more authentic tone out of the box. Improved Preset Structure The AI now accounts for the Quad Cortex's 4-scene layout and 8-block limit when building presets, keeping headroom for live scene switching and expression pedal assignments.

API Key Compatibility Fix - Google updated their Gemini API key format and new keys were being rejected at the entry screen. This has been fixed — all valid key formats are now accepted.

Minor bug fixes tand UI improvements.

Say hello to Cortex Studio! We’ve updated our name to better reflect the full power of the app. Because it functions as a Tone Builder, a remote control for presets and a full device database, the new name captures its role as the ultimate companion app for your Quad Cortex.

• Signal Chain - redesigned to match the Quad Cortex flow diagram • QC Remote - Factory presets show the source amp beneath each slot • Devices List - Devices, Captures, Plug-Ins, and Future additions announced • My Library - Supports favorites and reorder and swipe to delete