MGP vs ChoirXML
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MGP
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High-Quality Guitar Processor for Musicians MGP-1 Makk Guitar Processor is a high-quality guitar processor designed for guitarists and music producers, compatible with Audio Unit V3. Unlike amp simulators that mimic specific equipment, it features a digital-native design optimized for DAW production. Control speaker density and cabinet resonance with precision, achieving sculptural audio treatment. Universal app that works seamlessly on iPhone, iPad, and Mac. Develop ideas on iPhone while traveling, produce professionally on Mac in the studio, and perform live on iPad - continue music production with consistent tone across all devices. 11 Professional Effects including Tuner 1. Tuner - Fast/high-precision pitch detection 2. Gain - Distortion adjustment 3. Compressor - Dynamics control 4. Size - Cabinet resonance effects 5. Distance - Depth adjustment 6. Pan - Stereo positioning 7. Width - Stereo width adjustment 8. Chorus - Rich harmonics 9. Phaser - Unique tone changes 10. Delay - Echo effects 11. Reverb - Spatial reverb Two Editions Free Effect functions (limited) • Gain(Distortion): Adjustable in 10 steps from Lo to Normal Standard Effect functions (10-step parameter adjustment) • Gain(Distortion): Gain Stage selection (Lo/Normal/High) for stronger distortion • Right-click menu: Gain Stage selection and Lowcut/Highcut ON/OFF control available Price varies by region and is shown in-app in your local currency Compatible Environment iOS: 18.5+ macOS: 14.0+ Compatible DAW: Audio Unit V3 compatible apps Latency: Minimal (less than 10ms) CPU Usage: Efficient (less than 15%) Main Features Real-time processing: High-quality audio processing with low latency Intuitive UI: Professional-grade operability Offline support: Basic functions available without internet Recommended For Professional guitarists and session musicians Music producers and composers Music school and university students and instructors Home recording enthusiasts Live performers How to Use 1. Download from App Store 2. Load as Audio Unit in your preferred DAW 3. Combine effects freely Privacy and Security No personal information collected No audio data transmitted Fully functional offline Subscription information confirmed only via App Store Pricing Free: Free (with feature limitations) Standard: Price varies by region; shown in-app in your local currency What's New in This Update • Significantly improved tuner and meter accuracy and responsiveness • UI now automatically adapts to host window size • Adjusted Highcut frequency range (avoiding conflict with Treble EQ) • Performance optimizations and bug fixes Get Started Now Revolutionize your music production with MGP-1 Makk Guitar Processor. Try the free version first! Terms and Policies • Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ • Privacy Policy: https://makkwylde.github.io/makk-mgp1-support/legal/privacy-policy-en-US.html Content provided during each subscription period (Standard) • Gain Stage selection: Choose from 3 stages (Lo/Normal/High) for stronger distortion • 10-step precision control for effect parameters • Right-click menu: Detailed parameter adjustment available for specific effects • Future feature updates included during active subscription
ChoirXML
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ChoirXML reads printed choral scores and turns them into MusicXML – the file every common notation app can open. An old sheet, a scan or a photo becomes an editable score you can listen to, transpose, re-engrave or share with your choir. IMPORT • PDF or image from Files, a photo from your library, or scan with the camera • several pages into one song • pages are straightened automatically • choose the kind of score or let ChoirXML tell: choir, piano, choir with piano, instrumental RECOGNITION • staves, clefs, key and time signatures, including changes along the way • notes and rests down to sixteenths, dots, triplets, chords and several voices per staff • ties, slurs, fermatas, multi-bar rests and pickup bars • lyrics with several verses – even when printed once for all voices • dynamics (pp to ff), crescendo and diminuendo hairpins, accents, staccato, tenuto and breath marks • chord symbols above the notes • pale, grey photocopies too CHECK AND CORRECT Your original on top, the recognised music below – bar by bar in the same place. Only what was uncertain is marked in red, and ChoirXML asks exactly about it: Is the length right? Is the pitch right? Does this syllable belong to this note? A loupe shows that spot of the original. • tap a note to change pitch, length, accidental, voice or expression • delete single notes of a chord • insert missing notes for one voice or for both – also onto the stem of a note where the voice divides • insert missing bar lines, set or remove a pickup bar • confirm a voice that sings only a few notes of its own right where they stand • assign a syllable by tapping its note • set clefs, keys, time signatures, slurs, fermatas, final bars and repeats • undo and redo every change LISTEN Play back what was recognised before you share it: with a recorded grand piano and a choir sound, the singing voices as a choir or as a piano. The sounding notes light up, and you set the tempo. EXPORT MusicXML with all voices, verses, markings and chord symbols – with one staff per voice (soprano, alto, tenor, bass, each with its own sound and part in your notation app) or like a piano score on two staves. Save it to Files or share it straight to your notation app. PRIVATE Everything happens on your iPad. No account, no subscription, no ads, no data collection. Your music leaves the device only when you share it. GOOD TO KNOW Recognition works best with cleanly printed music. Handwriting, smudged copies or very dense scores need more corrections – ChoirXML shows you exactly where. Please respect the rights to the music you scan.
Screenshots
Verdict
The clearest difference is in-app purchases: ChoirXML at none against MGP's 1. On price, update cadence, ads 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. MGP sells 1 in-app purchase, starting at $1.99 per month. ChoirXML asks for nothing beyond the download.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 10, 2026 and October 26, 2026 respectively.
| Parameter | MGP | ChoirXML |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | MAKOTO INOMA | Jonathan Froese |
In-app purchases
MGP
- MGP-1 Standard7 Days trial$1.991 Month
ChoirXML
No in-app purchases









