MS50G Editor vs K
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
MS50G Editor
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MS50G Editor is the only dedicated patch editor for the original ZOOM MS-50G MultiStomp guitar effects pedal. ZOOM discontinued their official editor for the original MS-50G long ago. MS50G Editor fills that gap β giving you full control over your pedal's patches right from your iPhone. FEATURES β’ Patch Editor Edit all effect parameters visually with an intuitive interface. Fine-tune your tone without squinting at the tiny pedal screen. β’ Backup & Restore Back up all 50 patches at once. Restore your entire setup or individual patches anytime. Never lose your custom sounds again. β’ Real-Time MIDI Transfer Send edited patches to your MS-50G and receive current settings via USB-MIDI SysEx communication. What you see is what you hear. β’ Effect Library Browse the complete MS-50G effect catalog. View detailed parameter information for every effect. β’ Custom Presets Save your favorite patch configurations as custom presets. Build and organize your personal tone library. REQUIREMENTS β’ ZOOM MS-50G with firmware v3.10 β’ USB-MIDI interface + Camera Connection Kit (Lightning or USB-C) β’ iOS 16.0 or later IMPORTANT NOTES β’ This app is NOT affiliated with ZOOM Corporation. β’ The ZOOM MS-50G+ is not supported (use ZOOM's official app instead). β’ A powered Camera Connection Kit adapter or separate power supply for the MS-50G is recommended. USB bus power from iOS alone is not guaranteed. β’ Effect type swapping within patches is not currently supported. PRICING Free download with a 1-week trial of all features. After the trial, a one-time purchase unlocks the patch transfer feature. Editing, browsing, and backup remain free.
K
This application provides hands-free audio feedback for tuning musical instruments. It audibly announces the string and its tuning status, making it accessible for visually impaired users and convenient for all. Advanced features and additional tunings are available through a one-time purchase.
- Hands-free audio tuning
- Spoken results for string and pitch
- VoiceOver integration
- Automatic string detection
- Capo support
- Visual meter for sighted users
- Multiple alternative tunings (Pro)
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K-Tuner is a guitar tuner that lets you tune with your capo on. Choose the capo fret on the tuner screen, and each stringβs target pitch moves up to match. Pluck a string, and the meter shows whether it is in tune, too low, or too high. No need to remove the capo between songs. Capo support and standard tuning are free. It also works without looking at the screen. Pluck a string, and K-Tuner automatically detects which string you played. Turn on "Speak aloud" in Settings to hear the result, or use VoiceOver. K-Tuner was designed from the ground up to support VoiceOver. HOW IT WORKS β’ Open the app and it starts listening right away. β’ Pluck one string. K-Tuner picks the string automatically. You can also tap a string button to lock it. β’ When the note settles, it speaks the result. It stays quiet while you are turning the peg, so it never talks over you. β’ If the note fades too soon, it gives you a rough reading such as "probably too high" instead of staying silent. β’ If another string is ringing and hiding the one you plucked, it tells you which string to mute. β’ Tap "Speak current reading" at any time to hear the string and how many cents it is off. MADE FOR VOICEOVER β’ Every control has a clear label and hint. β’ Start or stop with a two-finger double-tap (magic tap), so you never have to find a button while holding your guitar. β’ The meter and the constantly changing numbers are hidden from VoiceOver so the focus never jumps around. β’ Results are announced in the language of the app, and the announcements do not interrupt each other in the wrong order. NOT USING VOICEOVER? Turn on "Speak aloud" in Settings and K-Tuner speaks the results itself, at the rate you choose. Sighted players get a large circular meter with a needle that turns green when the string is in tune. FREE VERSION β’ Standard tuning (E A D G B E) β’ Capo β’ Automatic string picking β’ Spoken results and VoiceOver support β’ The visual meter K-TUNER PRO (one-time purchase) β’ 18 more tunings: half step down, whole step down, Drop D, Drop C, Drop B, Open D, Open E, Open G, Open A, Open C, DADGAD, Nashville, all fourths, all fifths, major thirds, guitalele, and ukulele (high G and low G) β’ Reference pitch from 430 to 445 Hz Pro is a single purchase, not a subscription. Buy it once and use it on all your iPhones and iPads with the same Apple ID. PRIVACY K-Tuner uses the microphone only to measure pitch. Nothing is recorded or saved, and no audio ever leaves your device. There are no accounts and no ads. If something goes wrong, you can choose to email the developer an activity log; it contains no audio. TIPS β’ Place your iPhone near the body of the guitar with the microphone facing it. Your lap or a music stand works fine. β’ Pluck with normal strength. A very hard pluck takes longer to settle. β’ Keep the microphone out of air-conditioner drafts. Questions or feedback? Use "Send Bug Report" or "Support" in Settings, or visit the support page.
Screenshots
Verdict
The clearest difference is update cadence: K at every 5 days against MS50G Editor's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. MS50G Editor sells 1 one-off in-app purchase and K sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
MS50G Editor ships an update every 2 weeks, K every 5 days. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.
| Parameter | MS50G Editor | K |
|---|---|---|
| Price | Free | Free |
| Positive reviews | β | 100.0% of reviews |
| Update frequency | Every 2 weeks | Every 5 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | β | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 12 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Nobuhito Muto | Asoft.iOS |
In-app purchases
MS50G Editor
- Premium Plan$4.99
K
- A coffee$1.99
- A set of strings$5.99
- KTuner Pro$6.99
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- A big thank-you$19.99









