Scaler 2 4+

Empower the Composer Within

ScalerPlugin Pty Ltd

    • 4.8 • 14 Ratings
    • Free
    • Offers In-App Purchases

iPad Screenshots


Scaler 2 has been redesigned for the iPad and is used by many of the worlds top artists and producers. It's free to download and get using right away.

Scaler 2 iOS is a multiple award winning music theory workstation redesigned from the ground up for iPad OS. Scaler 2 is an inspirational and creative music tool that gives you access to a world of new ideas, expressions and melodies. With powerful detection of MIDI and audio, Scaler 2 can determine what key and scale you’re in and suggest chords, melodies and basslines that match your music. Scaler 2 can connect to any keyboard, synth or device using bluetooth audio and midi. Scaler is fully compatible with GarageBand and Audio Mixers to get you writing music on the fly in an environment that suits you. Scaler 2 makes finding chords and progressions intuitive and fun! It’s a comprehensive but easy to use toolbox that will help anyone make better music.

Main Features:

Discover your music’s key and explore alternative scales, modes and chord sets
Choose from hundreds of keys and modes, quickly build progressions in the sequencer
Play and record one-finger chords and melodies using Scaler 2’s Bind MIDI function
Play melodic expressions, phrases, performances, sequences, basslines, melodies and rhythms written by professional musicians across various time signatures
Establish your musical key and scale with audio detection as well as MIDI detection
Generate bass lines and melody lines adapted to your current scale and chords
Chord Charts: displays a guitar chord diagram for any chord and Fretboard Views allows you to explore the neck of your guitar
Export MIDI to your iOS DAW or export session to Scaler Plugin for use across all computer based DAWs

Compatible with Bluetooth MIDI Keyboards and all MIDI Keyboards via USB/Lightning Adapter
Standalone and AUv3 app that can control your favourite iPAD synths and work alongside thousands of AudioBus and AUM compatible apps
Redesigned from the ground up to work with iPad OS with new menu and UI Navigation
Scaler is a free download and comes with 5 integrated sounds and the main features. Unlock all remaining features, content and internal sounds with one time unlock all feature


Over 200 artist chord sets from the likes of Carl Cox, MJ Cole, The Temper Trap, Mitekiss, CeCe Rogers and Mike Huckaby
Over 400 unique genre, common and mood-based chord sets such as Chill, Drum & Bass, Jazz, Cinematic, EDM, Metal
Over 600 chord sets and hundreds of unique scales
Over 500 phrases, performances, sequences, basslines, melodies and rhythms by professional musicians across various time signatures
45 internal electronic, acoustic and orchestral instruments created by award winning producers
Over one hundred artist created modulation pathways to get you from one key to another
Over one hundred chord substitutions that lend variety to your progressions

Performing and creating:

Create unique chords by searching & selecting from the circle of fifths or by entering note by note on your keyboard in Chord Edit mode
Keys Lock helps you create emotive melodies by locking keys to your chords
MIDI Capture lets you perform inside Scaler 2 and then export the results as MIDI
Modulation Page gives you new ways to reach musical destinations
Suggest Mode helps you add complexity and artistry to your chord progressions
Edit Modes for adjusting length, velocity, inversion, octave, timing and performances more per chord in a pattern
Pad View helps you to arrange and play through multiple patterns and key switch between them
Voice Grouping can keep your chords within a certain range for voice leading
Chord editing and moving tools include lasso, drag n drop, replace and insert
Midi Mapping allows you to change, performances, scales and patterns on the fly
Get more natural-sounding melodies and expressions with the humanise and quantise function
Use the arpeggio or strum features to perform in real-time and synced to your DAW

Ratings and Reviews

4.8 out of 5
14 Ratings

14 Ratings

cookies_Lanae ,

Best Music Theory production App

I have purchased so many theory apps in search of finding something close to synfire. This is IT! I love this app. I have been able to be more productive in my learning and songwriting ideas. This is the ‘take it to the next level’ tool in creativity. To be able to flip out my iPad Pro and spit out my ideas 🤯 absolutely love it. I hope you guys continue to work on and develop this app on this platform. I am experiencing some issues loading it as a plug-in through beat maker 3 but I do ….::: greatly enjoy this product!

Developer Response ,

Thanks for feedback. Think someone has made a video online of them using it in Beatmaker. Don’t worry we will keep working and updating Scaler IPad for some time! Mainly because we love using it as much as you!

Slackmeister ,

Amazing Inexpensive tool for writing music

This is an indispensable tool when writing music. It can help someone without any music theory to a seasoned musician. I’m surprised that they are not charging 3-4 times for all the tools and instruments that you are getting. You can even export your creation into MIDI and import it to your DAW to finish your masterpiece. This will help you with music writer’s block to experiment and get inspired. There are so many chord progressions to choose from as your starting point that you can dissect and make your own.

Mad@Appstore ,

If you know, you Know.

Scaler 2 doesn’t need me to sell it. Everyone knows that it’s magic for anyone trying to express anything musically. I’m just tweak’n that it’s finally available on iPad.

In the future, I hope to see a piano roll for more control over performance, Melody, bass line, etc. A drum track or audio player where I could import/play my own loops would be clutch as well.

App Privacy

The developer, ScalerPlugin Pty Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


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