Comparison

MIDI SolFa Mode vs Gxnarly

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

Head to head
About

MIDI SolFa Mode

Explore music theory with an interactive instrument. Learn scales, modes, and solmization, or connect to MIDI devices. Play melodies, chords, and discover improvisational techniques.

Highlights
  • Interactive spiral and piano keyboards
  • Study scales, modes, and circle of fifths
  • Learn Movable-Do and Fixed-Do solmization
  • MIDI input/output and file playback
  • Improvise polyphonic canons
  • Load custom sounds and MIDI files
Features
Read full description

A unique musical instrument. An interactive music theory medium. An amazing solmization machine. A universal MIDI tool. All in one: "MIDI SolFa Mode-Go-Round" unites and extends the possibilities of the apps "Musk MIDI Keyboard", "Musk MIDI Player", "Musk Diatonic Modes" and the "SolFa Mode-Go-Round". Therefore there are many creative and didactic use cases. Play and grasp music! Use cases: ========== * Play on the diatonic or chromatic keyboard. * Study or teach scales, church modes, and the circle of fifths. * Discover improvising polyphonic canons. * Learn Movable-Do and Fixed-Do solmization. * Connect to your MIDI apps and devices or play with connected "SolFa Mode-Go-Rounds". * Load sounds and polyphonic pieces. * Tune into your part. Hear its solmization. Touch instruments: ================== * The app features a diatonically oriented spiral shaped keyboard with 7 keys per octave. (Tone circle) * With it you can easily play well sounding melodies and chords in major, minor or other church modes. + Besides it, there is a chromatic piano keyboard. (iPhone: Landscape orientation, iPad: double tap piano-button) Sounds: ======= * Instrumental sounds: a General-MIDI sound font is pre-installed. (See also "Musk MIDI Keyboard" for more options.) * To study church modes and solmization, the syllables "do re mi fa so la ti" where recorded in 3 octaves. + Freely mix instrument and solmization sounds. Listen to the solmization of the tenor, hear the bass as piano and the soprano as flute notes. + Choose a small choir ("Erlebnisland") with warm sounds or synthetic Bruno, who really sings to the point. Music theory: ============= * The generalised touch circle of fifth gives access to 12 tonics und 7 modes. * The touch instruments change according to the selected tonic and mode. * There are 5 mathematical-musical base modulations. * Interactive tutorials introduce you to the operation. * Get a fine feeling for the character differences between the diatonic scales Major (Ionian), natural Minor (Aeolean) and the church modes Dorian, Phrygian, Lydian, Mixolydian and Locrian. * Understand how they are interrelated. + Improvise up to five-part counterpoint canons "note-by-note": You play the melody and the canon assistent shows how to proceed. * You can also invent normal canons. Just play in half notes. + You can change labels on the tone circle, e.g. to test your or your students knowledge. Solmization: ============ * The syllables depend on the pitch, the chosen tonic/mode configuration and the solmization method. * They are shown on the tone circle and can be heared. * Solmization methods: absolute solmization (Fixed-Do), relative solmization (Movable-Do) and scale degree solmization. MIDI features: ============== * With this app, you can send and receive MIDI notes and play back MIDI files. * All features of "Musk MIDI Keyboard" and "Musk MIDI Player" are available. (See "Related Apps" in the App Store) + Record tracks and export midi files. + During recording of notes, the related solmization syllables can be attached to the track as lyrics. These can be shown by any MIDI-Karaoke player. + This app sends and receives configuration change commands. You can keep all connected "MIDI SolFa Mode-Go-Rounds" in sync. + You can also add bass notes with an external notation app. These will trigger tonic/mode changes. Synchronization: ================= + Notes and configuration changes are transmitted via MIDI to connected devices and apps. + Using SharePlay you can play with friends over the Internet and play back midi files synchronously. + Nearby devices, e.g. in the classroom, can synchronize their settings via OSC and OSC-Query. See also: ========= * "SolFa Mode-Go-Round", "Tonkreisel", "Musk MIDI Player", "Musk MIDI Keyboard". * Features marked with "*" are available in other apps. * Features marked with "+" are only available in this app. Have fun and let the mode go round! We love to hear feedback.

About

Gxnarly

Control your GX-10 or GX-100 music device directly from your iPhone, iPad, or Mac. Features include pedal simulation, patch editing, and IR loading, with iCloud syncing for patches.

Highlights
  • Device control via USB
  • Pedal simulation
  • Patch editor with full edit functions
  • BOSS Tone Exchange integration
  • TONE 3000 IR loading
  • iCloud patch syncing
  • EQ visualization
Read full description

GXnarly allows you to control your GX-10 or GX-100 from an iPhone, iPad or Mac. NOTE: Both iMac and iPhone/iPad work through the USB cable - no Bluetooth dongle required nor used when present. * Same app for Mac, iPhone, iPad and supports both GX-10 and GX-100 * Pedal Simulation: operate your Device pedals from the screen! * iPhone/iPad users can use USB instead of the Bluetooth dongle iPhone App has NO editor, on Mac and iPad, you also get an Editor with: * Very fast at reloading of device patches in the editor * All Edit Functions of your device are supported * BOSS Tone Exchange integration * TONE 3000 IR Loading integration * EQ Visualisation * Help texts for all effects and the User Interface * Effect search function * Supports undo/redo in the patch editor * Saves your patches to iCloud to share them between your devices .. and much more! All trademarks, logos, and brand names are the property of their respective owners. Any references to brands are for descriptive purposes only and do not imply endorsement by or affiliation with the original manufacturer. BOSS, BOSS GX-10, BOSS GX-100 and BOSS Tone Exchange are registered trademarks of Roland Corporation TONE 3000 is a registered trademark of Hot Inc.

Screenshots

MIDI SolFa Mode4 screens
Gxnarly4 screens

Verdict

The call

The clearest difference is review sentiment: Gxnarly at 100% against MIDI SolFa Mode's 60%. Gxnarly also leads on rating (5.0 vs 4.5) and update cadence (every 9 days vs every 3 months). MIDI SolFa Mode's advantage is price ($3.99 vs $4.99) and iOS requirement (14.0 vs 17.0). On ratings volume, ads, in-app purchases and monetization model 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

MIDI SolFa Mode costs $3.99 and Gxnarly $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Gxnarly holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 60% of MIDI SolFa Mode's written reviews are positive against 100% of Gxnarly's.

UpkeepUpdate frequency

MIDI SolFa Mode ships an update every 3 months, Gxnarly every 9 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
MIDI SolFa Mode versus Gxnarly: the parameters behind the verdict, then further details
ParameterMIDI SolFa ModeGxnarly
Price$3.99 — better$4.99
Rating4.5 (2 ratings)5.0 (1 ratings) — better
Positive reviews60.0% of reviews100.0% of reviews — better
Number of ratings2 — better1
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS14.0 — better17.0
Further details — not scored
Size45 MB10 MB
Age rating4+4+
DeveloperDr. Garbers SoftwareentwicklungPPV Enterprise

Customer experience

MIDI SolFa Mode

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Gxnarly

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

MIDI SolFa Mode

No in-app purchases

None

Gxnarly

No in-app purchases

Questions

Is MIDI SolFa Mode free?
MIDI SolFa Mode costs $3.99, with no in-app purchases.
Is Gxnarly free?
Gxnarly costs $4.99, with no in-app purchases.
Which has better reviews, MIDI SolFa Mode or Gxnarly?
Gxnarly is rated higher. MIDI SolFa Mode averages 4.5 out of 5 from 2 ratings, while Gxnarly averages 5.0 from 1 ratings.
Do MIDI SolFa Mode or Gxnarly have ads?
Neither MIDI SolFa Mode nor Gxnarly shows ads.
Which is updated more often, MIDI SolFa Mode or Gxnarly?
MIDI SolFa Mode ships an update every 3 months, and Gxnarly every 9 days. Most recently, MIDI SolFa Mode was updated on November 1, 2026 and Gxnarly on October 31, 2026.

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