MsyChords vs MIDI Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MsyChords
Create custom chord tables with precise tone control, including loudness, sustain, inversions, and arpeggios. Select from iCloud or transpose to any key. Offers five presets and intuitive performance controls for a personalized musical experience.
- Custom chord table creation
- Adjustable loudness and sustain
- Chord inversions and arpeggios
- Preset performance controls
- Transpose to any key
- iCloud chord table selection
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The MsyChords app let you create a table with chords with exactly the tones you like to hear. You can control the performance with loudness, sustain, chord inversions and arpeggios. The chord tables also can be selected from the iCloud directory. The tables can be transposed to the wanted key. Performance control Five presets, four buttons and two sliders allow to control the play performance. - Presets -- Five presets can be changed with one finger tip. The preset is configured by touching the white circle on the selector plane. A chord table is selected from a directory, the tone base (key) is set and a the sound can be chosen from a sound font. - Level control -- The sliders allow to adjust the volume at any time while playing. The slider on the left side and on the right side are synchronized and have the exact identical effect. - Play mode & arpeggiator -- The left top button allows to select different play modes by tapping or sliding the button. Mode 1 plays the chords exactly as they are denoted. Mode 2 supports to play inversions of the chord. Mode 3 to mode 7 provide different arpeggio patterns. - Speed control & help -- The right top button has two functions. For play mode 1 and 2, the button provides a help and settings page. In play mode 3 to mode 7, the button allows to control the speed of the arpeggios. The speed can be set by tapping or by sliding the button. - Sustain control -- The left bottom button provides a kind of a damper pedal. If pressed, the played chords continue to sound until the button is released. - Lock sustain and clear -- The right bottom button provides a lock sustain mode. The touched chord continues to sound until a next chord is played. The mode is enabled by pressing the right bottom button while the left bottom button is pressed. Chord tables A chord table is a collection of chords organized in rows and columns. The chord consists of arbitrary tones and a chord name chord. Further the table has an entry for a base tone (key). - Chord tones -- The tones are denoted as duodecimal MIDI numbers. Thereby we have two numbers for one tone. The first number is the octave, the second number is the semitone within the octave. As there are twelve semitones in an octave, the tone A#/Bb is denoted as 'X' and B is denoted as 'T'. ```|0:C|1:C#,Db|2:D| 3:D#,Eb|4:E|5:F|6:F#,Gb|7:G|8:G#,Ab|9:A|x:A#,Bb|t:B|``` - Chord name -- The name of the chords can be chosen arbitrary. But when the first letter is one of ABCDEFG, the letter is used to determine the musical function step in relation to the base tone. In that case the second letter is analyzed in addition if it is a # or b. Also transposing of the chord names is supported then. - Chord table selection -- The selection panel shows files of the MsyChords directory in alphabetical order. New chord tables can be created, renamed and deleted. Editing chord tables The edit mode is started by long pressing the preset selector button the selector button changes to red. - Editing chord tones -- Editing the chord tones is done with a dedicated keyboard showing the numbers 0 .. 9,X,T. - Editing chord names -- Editing the chord names is done with a keyboard providing text symbols supporting arbitrary text. - Add or delete rows or columns -- In edit mode rows and columns can be added or deleted by clicking on '⌑'. Also the position of the chord table button can be changed. - Move cell -- Chord table cells can be moved to other positions by touching '=' and moving the cell. - Save -- If a new table is loaded and the current table was modified, the user is asked to save the table or to ignore the changes. Saving is supported in the full version. - iCloud directory -- Chord tables a can be imported and exported via the MsyChords iCloud directory. Sound font files One sound font with 10 sounds is in-build (from FluidR3_GM.sf2 from Frank Wen). Other arbitrary .sf2 sound font files can be loaded via the MsyChords iCloud directory.
MIDI Pro
Generate practice tracks and composition ideas by mixing percussion and melody. Tailor sequences with custom rhythms, keys, scales, and chord progressions. Save MIDI files for further editing in your DAW.
- Generate MIDI sequences
- Mix percussion and melody tracks
- Selectable rhythm, key, scale, and chord progression
- Adjustable melody tracks
- Save MIDI files
- Import to DAW
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MIDI Pro provides practice opportunities and composition ideas. The app allows you to selectively mix percussion and melody tracks so you can play along with your preferred instrument. The generated MIDI sequences are a starting point for human composers to build upon and add more complex layers of instrumentation. A mixture of determinism and randomness is used to construct MIDI sequences that can be tailored to individual preferences. The sequences are seeded with the selected rhythm, notes are are added using the selected key, scale and chord progression. The outcome is a set of tracks that include the percussion plus 4 melody tracks that can be individually adjusted. With the paid version you can save midi files for reuse and or to import them into your favorite DAW.
Screenshots
Verdict
The clearest difference is review sentiment: MsyChords at 75% against MIDI Pro's 0%. MsyChords also leads on monetization model (free vs free with in-app purchases). MIDI Pro's advantage is update cadence (every 2 months vs every 11 months). On price, 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
Both are free to download. MsyChords sells 1 one-off in-app purchase and MIDI Pro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
MsyChords ships an update every 11 months, MIDI Pro every 2 months. The most recent releases landed on June 1, 2026 and September 21, 2026 respectively.
| Parameter | MsyChords | MIDI Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (3 ratings) — better | — |
| Positive reviews | 75.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | — |
| Update frequency | Every 11 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.2 — better | 16.0 |
| Further details — not scored | ||
| Size | 39 MB | 165 MB |
| Age rating | 4+ | 4+ |
| Developer | Bernhard Feiten | renee zuleta |
Customer experience
MsyChords
MIDI Pro
In-app purchases
MsyChords
- MsyChords-StoreFeature$7.99
MIDI Pro
- Full Access Purchase$12.99









