sumFX vs MS50G Editor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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 — 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
Verdict
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
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.
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.
| Parameter | sumFX | MS50G Editor |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.4 (12 ratings) — better | — |
| Positive reviews | 54.5% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 6 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 44 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | OSC Audio | Nobuhito Muto |
In-app purchases
sumFX
No in-app purchases
MS50G Editor
- Premium Plan$4.99









