Comparison

sumFX vs MS50G Editor

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

Head to head
About

sumFX

This app is a versatile audio effects processor for musicians. It offers a modular design with multiple high-quality FX modules and customizable slots, allowing for quick creation of unique sounds. Focus on your music with intuitive controls and visual feedback.

Highlights
  • Modular multi-FX processor
  • 8 high-quality FX modules
  • 8 FX slots with Wet/Dry control
  • 2 LFOs per slot
  • 50+ cross-platform presets
  • Pre/post waveform view
Features
Read full description

sumFX is a modular multi-FX processor for Mac/PC and iOS. Designed with simplicity in mind, to help keep you focused on the music and the sum of your efforts. Packed with 8 high quality FX modules and an available 8 slots, each loaded with Wet/Dry control, Global Wet/Dry, and 2 LFOs per slot, creating new unique sounds is quick and easy. 50+ cross-platform slot & chain presets are included to get you to any sound you need quickly and we’ve packed in an easy to use pre/post waveform view to help keep you focused on the result of your FX. Modules: -syncDynamics - Multimode dynamic FX with BPM sync attack/release (Noise Gate, Expander, Compressor, Limiter) -stereoFilter - Stereo filter with link or individual channel controls (LPF12, HPF12, BPF12, LPF24, HPF24, BPF24, Notch, & Formant options). -variMod - Multimode modulation FX with stereo offset (Chorus, Flanger,  Vibrato, Phaser, Tremolo,  & Auto Pan) -EQuator - Full high quality EQ module (3 Parametric Bands, High/Low Shelf, & HPF/LPF). -frostReverb - Multi-Mode (Original, Plate, Spring, Room) Stereo Reverb.  -bucketDelay - Stereo Analog Style Delay with individual channel control. -variPitch - Stereo Pitch Shifter with 3X Modes (Doubler, Harmonizer, & Full Control) -powerPhase - Multimode Saturation, Utility Gain In/Out, Mono Maker, Channel msDelay, & Phase inverter.

About

MS50G Editor

Features
Read full description

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 — giving you full control over your pedal's patches right from your iPhone. FEATURES • Patch Editor Edit all effect parameters visually with an intuitive interface. Fine-tune your tone without squinting at the tiny pedal screen. • Backup & Restore Back up all 50 patches at once. Restore your entire setup or individual patches anytime. Never lose your custom sounds again. • 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. • Effect Library Browse the complete MS-50G effect catalog. View detailed parameter information for every effect. • Custom Presets Save your favorite patch configurations as custom presets. Build and organize your personal tone library. REQUIREMENTS • ZOOM MS-50G with firmware v3.10 • USB-MIDI interface + Camera Connection Kit (Lightning or USB-C) • iOS 16.0 or later IMPORTANT NOTES • This app is NOT affiliated with ZOOM Corporation. • The ZOOM MS-50G+ is not supported (use ZOOM's official app instead). • 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. • 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.

Screenshots

sumFX3 screens
MS50G Editor4 screens

Verdict

The call

The clearest difference is price: MS50G Editor at Free against sumFX's $9.99. MS50G Editor also leads on update cadence (every 2 weeks vs every 6 months). sumFX's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 16.0). On 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

CostPrice · In-app purchases · Ads · Monetization

MS50G Editor is free to download; sumFX costs $9.99 up front. MS50G Editor sells 1 one-off in-app purchase. sumFX asks for nothing beyond the download.

UpkeepUpdate frequency

sumFX ships an update every 6 months, MS50G Editor every 2 weeks. The most recent releases landed on September 23, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
sumFX versus MS50G Editor: the parameters behind the verdict, then further details
ParametersumFXMS50G Editor
Price$9.99Free — better
Rating4.4 (12 ratings) — better—
Positive reviews54.5% of reviews—
Number of ratings12 — better—
Update frequencyEvery 6 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size44 MB12 MB
Age rating4+4+
DeveloperOSC AudioNobuhito Muto

In-app purchases

None

sumFX

No in-app purchases

1 purchases

MS50G Editor

One-time1
  • Premium Plan$4.99

Questions

Is sumFX free?
sumFX costs $9.99, with no in-app purchases.
Is MS50G Editor free?
MS50G Editor is free to download, with in-app purchases available.
Do sumFX or MS50G Editor have ads?
Neither sumFX nor MS50G Editor shows ads.
Which is updated more often, sumFX or MS50G Editor?
sumFX ships an update every 6 months, and MS50G Editor every 2 weeks. Most recently, sumFX was updated on September 23, 2026 and MS50G Editor on October 6, 2026.

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