Comparison

iPiano Chords HD vs MidiDeep

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

Head to head
About

iPiano Chords HD

This app helps musicians find piano chords and scales with a large library and multiple search options. It includes a quiz mode for practice and MIDI input for keyboard integration. Export chord diagrams for easy sharing.

Highlights
  • Extensive chord library (2300+ chords)
  • Chord reverse search with inversions
  • Scale library (46 scales)
  • MIDI input via cable or Bluetooth
  • Quiz mode with adjustable levels
  • Chord diagram export
Read full description

After a longer break, I put some time back into the iPianoChords app. On the one hand, now a little clearer without completely changing the look, so there is still not much similar about piano chords in the APP Store. Now optimized for all iPads and landscape mode, I added a few adjustments: In addition to the variants to choose a chord with swipe as chord selection by name, via filter function, as chord reverse search and the scale library, we now have the note view active in all modes. The quiz mode has been revised and now includes chord inversions, this also applies to reverse search. The levels are classified differently as before and designed for beginners. Only the last levels are for the chord masters. And after multiple requests now with midi input. A connected midi keyboard via cable or Bluetooth is recognized directly and you can use it in quiz mode and for reverse search. Some Bluetooth keyboards needs to be connected via GarageBand and can then be used. If there are several midi sources, a dialog is displayed for selection. We also kept the export function for chord diagrams as an image, but I can recommend the ChordPainter in the AppStore. It will create a piano songbook with chord diagrams instead of a notes in minutes. The rest is the same and iPianoChords HD has a Chord Library engine with over 2300 chords. You could select the chord with direct selection by using buttons or the new enhanced filter mode. The Reverse Chord Finder could help you finding the chords for given Piano keys. Also chord inversion are added to the search process, which will offer a very good search result. We added a new Scale Library with 46 Scales in all 12 root notes. There is now a Note System Display available and the display position could be switched in 3 positions. Please note that I'm using a simplified display which may not always 100% musically correct. For all musician are not very familiar with notes, we have added a function to export Chord images. Simply tab your chord notes with red keys, additional solo notes with yellow keys and the left hand chord with blue circle markers. Add a name for your chord image and the chord snapshot function will copy this image to the photo library. --------------------------------------------------- Midi input via cable or Bluetooth Huge chord library Chord with inversions Scale library Chord play mode within 3 octave positions Piano sample sounds Chord selection with chord buttons Limit chord selection buttons Chord selection with filter options Chord search function Simple root note selection Root note display Note name display Alternate chord names Chord formula display Half-tone search pattern Three color chordpainter function Chord snapshot option Note system display Select note system root with 7#/b Language select DE/EN 10 Quiz levels with 1..6 for beginners Quiz with chord names Quiz mode with chord image Quiztimer could be activated Six possible Quiztimer values Plus/Minus quiz answer counter Levels from Powerchords to jazz chords Inversionen im Quiz aktivieren Chord inversion display Landscape and portrait mode Integrated on-screen help Mode select input slide mode Menu selection for input modes

About

MidiDeep

Features
Read full description

MidiDeep is a real-time MIDI processor. It makes no sound of its own: it reshapes what you play before your instruments ever hear it. You build a chain of effects, block by block, and you hear the result straight away. THE BLOCKS Chord — builds a diatonic chord from a single note. Degrees, inversions, sus2, sus4, sixths, sevenths, ninths, and an octave setting per block. Arpeggio — arpeggiates held notes. Six directions, divisions from whole note to 64th, gate, swing, octaves, latch, transpose. Steps — a polyphonic step sequencer, up to sixteen steps. Per step: semitone, length, ratchet, velocity, tie. Delay — synchronised MIDI repeats. Harmonize — parallel voices. Every block runs on its own internal clock or follows the MIDI clock of your sequencer. KEY AND SCALE One tonic and one scale shared by the whole chain. Fourteen scales, from major to diminished by way of the pentatonics and whole tone. Notes outside the scale are pulled to the nearest one, so you never play a wrong note. MULTIPLE TIMELINES Open as many TimeLines as you need — up to four on iPhone and iPad, up to eight windows on Mac. Each one is independent: its own effect chain, its own channel filters, its own clock, its own MIDI ports. Each TimeLine shows up as a separate port in your DAW — Ableton Live, Logic Pro or any other MIDI host. Preferences and presets stay shared across all of them. CONNECTIONS A virtual MIDI port for other apps on your device. USB MIDI interfaces. Network MIDI to your other machines. BLE MIDI. Input channel filtering, output channel remapping, and a matrix that decides, for each destination, what goes out: notes, clock, controllers. MACROS AND PRESETS Four macros, assignable to any parameter and drivable by CC from your controller. One preset per effect, plus patches that recall the entire chain. ONE PURCHASE, ALL YOUR DEVICES MidiDeep is a Universal Purchase: buy it on iPhone or iPad and it's on your Mac too; buy it on Mac and it follows you to iOS.

Screenshots

MidiDeep4 screens

Verdict

The call

The clearest difference is price: iPiano Chords HD at $2.99 against MidiDeep's $9.99. iPiano Chords HD also leads on iOS requirement (12.0 vs 16.6). MidiDeep's advantage is update cadence (monthly vs every 30 months). On ads, in-app purchases and device support 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

iPiano Chords HD costs $2.99 and MidiDeep $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

iPiano Chords HD ships an update every 30 months, MidiDeep monthly. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
iPiano Chords HD versus MidiDeep: the parameters behind the verdict, then further details
ParameteriPiano Chords HDMidiDeep
Price$2.99 — better$9.99
Rating2.0 (1 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 30 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPadiPhone, iPad — better
Requires iOS12.0 — better16.6
Further details — not scored
Size49 MB4 MB
Age rating4+4+
DeveloperStefan ArnholdDIRECT GRAPHIC S.A.S.

In-app purchases

None

iPiano Chords HD

No in-app purchases

None

MidiDeep

No in-app purchases

Questions

Is iPiano Chords HD free?
iPiano Chords HD costs $2.99, with no in-app purchases.
Is MidiDeep free?
MidiDeep costs $9.99, with no in-app purchases.
Do iPiano Chords HD or MidiDeep have ads?
Neither iPiano Chords HD nor MidiDeep shows ads.
Which is updated more often, iPiano Chords HD or MidiDeep?
iPiano Chords HD ships an update every 30 months, and MidiDeep monthly. Most recently, iPiano Chords HD was updated on October 6, 2026 and MidiDeep on October 24, 2026.

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