Unofficial companion app · iPhone, iPad and Android

StajNano makes the Nano Cortex a complete live multi-effects unit — on its own.

Big, high-contrast tiles for the effects, amp and cab, presets, tempo and tuner, and Song mode, which loads a whole song in one touch. Your phone or tablet next to it, an inexpensive Bluetooth MIDI foot controller under your foot, and the Nano Cortex is a complete stage rig.

The StajNano control page: a noise gate and five effect tiles in their own colours, the amp and cab, the preset name Chorus Verse, six amp knobs, a tempo box and four footswitch slots.
The control page, drawn with sample data.
SONG MODE

A whole song in one touch.

Name a song, set its tempo, choose four presets for 1A, 1B, 2A and 2B and give every slot a name of your own. Load the song and the stage is set: the four presets are on the footswitches, the first one is loaded and the tempo is in place.

Song mode on the control page: song 03 Sunday Service with its number and a blue music note, the loaded preset under it, and the four slots named Verse, Chorus, Solo and Outro.
Song mode: the song and its number above, and four footswitch slots that carry your words.
  • Songs, not preset numbersThe footswitches say Verse, Chorus, Solo, Outro — the names you chose, in any language, even emoji.
  • One swipe, one songSwipe, or press a foot-pedal button, and the next song loads: its four presets and its tempo together.
  • The tempo comes with itEvery song carries its tempo and sets it for you. Prefer your own tempo? Switch it off in Options.
  • Up to 25 songsKept on your device. Edit them in seconds: pick the presets from the list, type the names, save.
  • Back up, move, shareExport your whole song list to a .stajnano file and import it on another phone or tablet.
  • Made for a foot pedalA Bluetooth MIDI foot pedal steps through your songs and presses the slots. See the MIDI reference.
Song mode belongs to StajNano. It is StajNano’s own feature: it is not built into the Nano Cortex and your songs are not stored on it. They live in StajNano, on your phone or tablet, so Song mode works only while you use the Nano Cortex together with StajNano. When you load a song, StajNano puts its four presets on the footswitches and sets the tempo for you.

Proven on stage with StajPilot

Song mode first proved itself in StajPilot, our stage controller for the Kemper Profiler. StajNano brings it to the Nano Cortex, made for it from the start.

Add an inexpensive foot controller — and the stage is set.

Connect a cheap Bluetooth MIDI foot controller, such as the M-VAVE Chocolate, to StajNano and your feet run the whole show. No cable to the Nano Cortex, no computer, nothing else to carry.

The smart switch: set it up once, use it in every mode

No complicated MIDI setup. Program two buttons of your foot controller, previous and next, and that is all. The very same two messages do the right thing in every mode, so you never reprogram the controller when you change mode:

ModePrevious (PC 70)Next (PC 75)
Presetprevious presetnext preset
Bankprevious bank of four presetsnext bank of four presets
Songprevious song, with its presets and temponext song, with its presets and tempo

Choose the mode in Options, or leave it where it is: the same two buttons follow it. The MIDI reference has the exact numbers for the rest.

Our recommended live setup: everything from one Nano Cortex

One Nano Cortex, your phone or tablet and an M-VAVE Chocolate: that is the setup we recommend most for doing everything live. Four buttons, A to D. A short press picks a slot, and a long press on A and on D is the smart switch.

Apress: slot 1Ahold: previous
Bpress: slot 1B
Cpress: slot 2A
Dpress: slot 2Bhold: next

That is all a live set needs: A to D pick the four presets of the song, and a long press on A or D moves to the previous or next song, with its presets and tempo. Played like this, it gets you through a whole live show. (Press = Program Change 71, 72, 73, 74; hold A = 70, hold D = 75.)

SONGS

Previous / next song

One press loads the next or the previous song: its four presets and its tempo.

SLOTS

The four slots

Press 1A, 1B, 2A or 2B to load that preset, in any mode.

TEMPO

Tap tempo

Tap the tempo on your foot controller and the Nano Cortex follows.

BLOCKS

Gate, effects, amp, cab

Switch any block on or off, or flip it, from your feet.

Setting it up takes a minute: Options → BT Pedal → On, pick your foot controller, set the channel. Every message is in the MIDI reference.

Made for playing live

CONTROL

One screen to play

The gate, five effect slots, amp and cab, the preset name, six amp knobs, the tempo and the four footswitch slots. Tap to switch a block on or off, long-press to edit it. Changed something? The preset name turns amber: hold it for a second to save, and a small “Preset saved” tells you it is done. Colours and sizes are chosen to read on a dark stage.

EDIT

Every parameter, one touch away

Open any block to change its model and turn every knob and switch, in the order and with the units you already know. A bar shows the value you are touching, with a slider for fine changes.

PRESET · BANK · SONG

Three ways to move

Preset mode steps through presets. Bank mode puts four presets on the footswitches at once. Song mode loads a whole song: its four presets and its tempo. Swipe left or right below the effects to go to the next or previous one, or tap the number tile at the left of the name for the whole list of presets, banks or songs.

TUNER

A tuner you can read from the stage

A big note, a scale with one LED for every cent, and a green glow when you are in tune. It fills the lower part of the control page, or the whole screen if you prefer.

SMART SWITCH

Two buttons, every mode

One previous and one next message work in Preset, Bank and Song mode alike: the same MIDI setting, the right job. No complicated MIDI setup, and nothing to change when you change mode.

FOOT PEDAL

Bluetooth foot pedals

An inexpensive Bluetooth MIDI foot controller, such as the M-VAVE Chocolate, steps through your songs, presses the four slots, taps the tempo and switches the gate, effects, amp and cab. The MIDI reference lists every message.

AUTO-CONNECT

Connects by itself

Register your pedal once. Next time StajNano finds it and connects without a tap, and it never connects to anybody else’s pedal by itself.

PRIVATE

Nothing leaves your phone

No account, no ads, no analytics and no internet access. Your songs and settings stay on your device. Read the privacy policy.

Opening the lists, saving a preset

Tap the number tile at the left of the name bar to open the list of the mode you are in. Touching the name itself does nothing, so you cannot open a list by accident on stage.

PRESET

Preset mode

The tile shows the preset number. Tap it to open the list of presets, then tap a preset to load it.

Long-press a footswitch slot at the bottom to set the preset it holds: the list opens, and the preset you tap goes onto that slot.

BANK

Bank mode

The tile shows the bank and the footswitch, for example 3-1B. Tap it to open the list of banks, then tap a bank to load it.

A long press on a footswitch slot does not set a preset here, because changing one slot would break the bank. It opens the bank list instead.

SONG

Song mode

The blue tile with a music note shows the song number. Tap it to open the song list, then tap a song to load it. Long-press a song in the list to edit it.

Long-press a footswitch slot to edit the song you are on: its name, tempo and presets.

SAVE

Hold the name to save

When you change a preset, its name turns amber (yellow). Press and hold the name for one second to save it; a green “Preset saved” message confirms it. A white name means there is nothing to save.

CHANGED

If you saw our first videos

The small P, B and music-note icon and the SAVE button next to the name are gone. Open a list with the number tile, and save by holding the amber name.

The screens

Every page is designed once on a 16:9 canvas and scaled to your screen, so it looks the same on every phone and tablet and the text never follows the system font size.

The screens are drawn by the app itself with sample data.

Get the app

iPhone & iPad

App Store, iOS 15 or later. Available now.

US$19.99 in the US. Prices in other countries are set by Apple.

Get it on the App Store

Android

Google Play, Android 7.0 or later, phones and tablets with Bluetooth Low Energy.

A 14-day paid closed test is required. Google Play asks for it before a public release, so the Android version is not available to everyone yet. To take part, send us a message on Instagram or Messenger with the e-mail address of the Google account you use on Google Play, and we will add you as a tester.

StajNano is an independent, unofficial app. It is not made, endorsed or supported by Neural DSP. Nano Cortex and Neural DSP are trademarks of Neural DSP Technologies; Kemper and Kemper Profiler are trademarks of Kemper GmbH. All other product names and trademarks belong to their owners. StajNano is provided “as is”, without warranty of any kind. We do not guarantee that it works correctly with every Nano Cortex unit or firmware version, and we are not responsible for any problem arising from its use.

Family apps

StajNano grew out of StajPilot. Same family, same idea: a stage controller you can read from across the room.