Comparison

Improvisation Trainer vs Chordio+

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Improvisation Trainer

This music app offers flexible practice tools for musicians of all levels. Create custom exercises with random or specific chord progressions, choose from various playback styles, and save your settings. It's designed for both individual practice and music education.

Highlights
  • Random chord mode with custom pools
  • Progression player for favorite chord sequences
  • Custom exercise generation
  • Multiple playback styles (Rock, Pop, Swing, etc.)
  • Save and share custom settings
  • Music sheet layout display
Features
Read full description

„Improvisation Trainer - the music learning app everybody has been waiting for.“ Improvisation Trainer is the perfect practicing companion for both beginners and professionals in music out of every music field. Due to it’s incredible flexibility you can use the app no matter what style of music you prefer.  It is the perfect practicing tool for custom, creative and level-based exercises - no matter if you are a rookie or a professional musician. It is a indispensable tool for music teachers and provides an ultimate platform for practicing harmonic and melodic instruments. Just get started with one of our presets to give you an idea about the endless possibilities the app can do! With Improvisation Trainer you can: EFFECTIVE PRACTICING! RANDOM CHORD MODE • practice improvising on your favorite chords • practice improvising within random given chords out of a defined chord pool • define your own chord pools specially designed for your needs • diatonic mode: practice improvising only within a specified key • chromatic mode: practice your skills on all bass notes of the chromatic scale • modal mode: chord symbols will randomly change, but only on one bass note • custom mode: practice your chords on personally specified root notes (i.e., C and F) • set the chord duration for each chord (i.e., 2 bars) • set a loop to create perfect practicing exercises for you • tell the app in which meter you want to improvise (3/4, 4/4, 5/4, 7/8, …) PROGRESSION MODE • practice all your favorite chord progressions in the progression player • here are some progressions that are included:  • II-V-I • I-VI-IV-V-I • I-IVm, … • custom progressions: practice your progressions only in specified keys • chromatic progressions: practice your progressions in all 12 chromatic keys • completely individually shape your own exercises or just use the given presets to start practicing! CUSTOM MODE  • generate your own sequence of chords for fast creating of truly unique exercises • choose the length of each chord using the specified interface • use one of many styles to playback your exercise IT’S ALL A MATTER OF STYLE • choose from a variety of different playback styles: Rock, Pop, Swing, Bossa-Nova, Disco, Country and many more • choose your individual playback tempo • tell the app in which meter you want to improvise (3/4, 4/4, 5/4, 7/8, …) SAVE AND SHARE YOUR SETTINGS • you can save all your custom settings to get started quickly • you can easily share the settings with friends, students or other people using e-mail MANY DISPLAYING OPTIONS FOR EFFICIENT PRACTICING • define which accidentals you want to see (#,b or random) • practice while using a regular music sheet layout with your generated chords • simple mode: only display three chords at a time • short time hint: display the next chord only a short time before you hear it ADVANCED FEATURES • practice chords with a lot of extensions like G7(#9,b13) • create endless material for you to practice on • improvise in odd time signatures • loop-mode: transpose your exercises after a certain number of loops • loop-mode: create uneven loops to practice odd bar phrases • progression mode: define exactly which chords you want to hear on each degree (i.e. only m7 on II and only 7(b9) on V) • use the included mixing desk to adjust the volume of bass-notes, chords and drums EAR TRAINING • You can also use the app as a ear-training program. Just define which chords you want to be played and don’t look at the display or use our „only time“ preset!

About

Chordio+

This music creation and learning tool offers an interactive way to explore chords and scales. It helps users compose songs, store progressions, and connect MIDI controllers for real-time feedback. Ideal for musicians, composers, and educators seeking to enhance their music theory knowledge and creative output.

Highlights
  • Build chord progressions with a sequencer
  • Chord and scale exploration modes
  • MIDI controller integration
  • Custom chord creation and editing
  • Export MIDI to DAWs
  • Learn songs with adjustable speed and pitch
Features
Read full description

Looking for a spark for your upcoming song or unsure about the names of chords to communicate with fellow musicians? Introducing Chordio+, a powerful tool for composition and music theory that offers an enjoyable and interactive experience. This app allows you to explore chords and scales in a fun and engaging way. It also provides a convenient platform for storing all your distinctive musical chord progressions in a single location. As a result, Chordio becomes an indispensable resource for contemporary music producers, composers, and educators. Take your music theory knowledge to the next level and create innovative chord progressions for your latest composition. With a range of internal sounds included, you can explore the tool's features without needing any other external equipment. Connect your MIDI controller to Chordio+ and see chord names appear on the Grand Staff in real-time as you play. Solo over chord progressions using the built-in sounds, and quickly rearrange or transpose chord progressions on the fly for added flexibility.  Chordio+ empowers you to unleash your creativity and take your music to another level. The main features are divided into four workspaces: Composition • Build-in sequencer to create chord progressions. • Build-in Chord progression generator. • Create custom chords, edit existing chords, get chord inversions, and extended chords. • Drag & Drop to change the song structure. • Transpose the entire chord progression with a single tap. • Create a playlist of custom chord progressions. • A Chord Types & Voicings panel helps you generate new chords. • Play-along with a backing rhythm track. • Save/load songs, export it as MIDl to your favourite DAW. • Download chord progressions from a growing collection of Chord Packs. • Features a chord transformer that allows you to easily substitute a selected chord with a suggested alternative. Modes • Interactive way to learn what scales are associated with each mode. • Practice modes in Chordio+. • Change tonic, mode, and layout to discover the relationship between musical notes, chords, and scales. Scales • Practice scales with a metronome in all keys. • Contains more than 40 scales you can work with. • Staff view for chords and scales. • Tap on scale notes to show their corresponding intervals. Lessons • Learn to play songs at your own pace. • Download music from a growing collection of Lesson Packs. • Lessons can be slowed down or pitch changed. KEY FEATURES: • MIDI keyboard support. • Build progressions using the chord generators. • Export MIDI to your DAW or sequencer. • Custom chords, edit existing chords, get extended chords. • Play internal sounds. • Arpeggio, strum and performance modes. • Mac version include a detachable resizable Grand Staff, Chord Display, and Keyboard Views. • Customise the Keyboard highlight color. • Select chord, to display a range of related scales and chords. • Tap a note on the Grand Staff to highlight it with a color. • Choose from selection of backing rhythms that fit specific genres. • Chord Pattern playback Always backup your chord progressions!

Screenshots

Improvisation Trainer4 screens
Chordio+4 screens

Verdict

The call

The clearest difference is rating: Improvisation Trainer at 4.2 against Chordio+'s 2.3. Improvisation Trainer also leads on review sentiment (64% vs 33%) and iOS requirement (12.1 vs 15.0). On price, ratings volume, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Improvisation Trainer sells 1 one-off in-app purchase and Chordio+ sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Improvisation Trainer holds the better App Store score, 4.2 against 2.3. Both are backed by a comparable volume of ratings — 5 and 6 respectively. Written reviews point the same way: 64% of Improvisation Trainer's written reviews are positive against 33% of Chordio+'s.

UpkeepUpdate frequency

Improvisation Trainer ships an update every 2 months, Chordio+ every 5 weeks. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Improvisation Trainer versus Chordio+: the parameters behind the verdict, then further details
ParameterImprovisation TrainerChordio+
PriceFreeFree
Rating4.2 (5 ratings) — better2.3 (6 ratings)
Positive reviews63.6% of reviews — better33.3% of reviews
Number of ratings56 — better
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.1 — better15.0
Further details — not scored
Size85 MB154 MB
Age rating4+17+
DeveloperAppicDesignOne In A Billion Ltd

Customer experience

Improvisation Trainer

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%
Written reviews11 reviews
Positive63.6%
Neutral36.4%
Negative0.0%

Chordio+

All ratings6 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews6 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

1 purchases

Improvisation Trainer

One-time1
  • Full Version$4.99
11 purchases

Chordio+

One-time11
  • Free Chord PackFree
  • Arabesque No.1$0.99
  • RnB Chords No.1$1.99
Show 8 more
  • Neo-Soul Tunes 1$4.99
  • Neo-Soul Progressions 1$4.99
  • II-V-I Progressions$4.99
  • Jazz Progressions 1$4.99
  • RnB Progressions 1$4.99
  • Chord Progressions 251 No.1$4.99
  • Classical Progressions 1$4.99
  • Unlock App$6.99

Questions

Is Improvisation Trainer free?
Improvisation Trainer is free to download, with in-app purchases available.
Is Chordio+ free?
Chordio+ is free to download, with in-app purchases available.
Which has better reviews, Improvisation Trainer or Chordio+?
Improvisation Trainer is rated higher. Improvisation Trainer averages 4.2 out of 5 from 5 ratings, while Chordio+ averages 2.3 from 6 ratings.
Do Improvisation Trainer or Chordio+ have ads?
Neither Improvisation Trainer nor Chordio+ shows ads.
Which is updated more often, Improvisation Trainer or Chordio+?
Improvisation Trainer ships an update every 2 months, and Chordio+ every 5 weeks. Most recently, Improvisation Trainer was updated on October 24, 2026 and Chordio+ on October 24, 2026.

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