MF vs MIDI World
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MF
This app is a digital recreation of a classic analog lowpass filter effect pedal. It allows users to add dynamic motion and warm, vibrant tones to various audio sources like guitars, vocals, and synthesizers.
- Analog 4-pole lowpass filter emulation
- Envelope follower for dynamic motion
- Processes guitar, voice, and synths
- AUv3 effects plugin
- Warm and vibrant sound quality
Read full descriptionHide full description
The MF-101S Lowpass Filter is a re-invention of Moog Music’s classic Moogerfooger MF-101 analog effects pedal. The hardware MF-101 Lowpass Filter, introduced in 1998, contained two complete modular functions: a classic, all-analog 4-pole Lowpass Filter paired with an envelope follower to impart dynamic motion to the filtered sound. Designed by Bob Moog and his engineering team, the MF-101 was a direct descendant of the original Moog modular synthesizers, adapted to process, modulate, and play with inputs ranging from guitar, voice, and synthesizer to any imaginable audio source. The MF-101 Lowpass Filter has been meticulously recreated as the MF-101S, capturing not only the warm and vibrant sound of the original, but also the organic way in which the parameters interact to create a musical playing experience. The MF-101S is an AUv3 effects plug-in that requires a compatible host or DAW to function.
MIDI World
Transform device sensors and real-world data into MIDI control and musical notes. Create multitrack recordings, adjust performances with per-track controls, and export to any DAW. Connect environmental data to your music.
- Sensor-to-MIDI mapping
- Real-world data integration
- Multitrack recording
- Per-track performance controls
- Standard MIDI File export
- Optional audio export
- Preset and theme customization
Read full descriptionHide full description
MIDIWorld turns sensors and live data into MIDI control and notes. Map accelerometer, gyroscope, compass, GPS, barometer, microphone level, touch, light, proximity, and device motion into your performances. Layer weather, air quality, tides, visibility, seismic activity, place density, and market or FX-style feeds where available. Record multitrack sessions, adjust each source with per-track controls, and preview what you captured. Export Standard MIDI Files to use in any DAW or hardware that accepts MIDI. Optional audio export is available where the app supports it. Presets help you start quickly — from motion and tilt to weather, urban, health-driven, and experimental setups. Themes keep the interface comfortable for studio or stage. Permissions (Motion, Microphone, Location — including background when your session needs it — Health, Bluetooth) are used only to drive MIDI and related features on your device, as described in the system prompts and in our Privacy Policy. Whether you are sonifying a ride, the forecast, or generative patches from your environment, MIDIWorld connects world data to music.
Screenshots
Verdict
The clearest difference is review sentiment: MF at 50% against MIDI World's 0%. MF also leads on rating (4.6 vs 2.0) and update cadence (monthly vs every 7 months). MIDI World's advantage is price ($0.99 vs $14.99). On ads, in-app purchases, monetization model 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
MF costs $14.99 and MIDI World $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
MF holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: MF has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of MF's written reviews are positive against 0% of MIDI World's.
MF ships an update monthly, MIDI World every 7 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.
| Parameter | MF | MIDI World |
|---|---|---|
| Price | $14.99 | $0.99 — better |
| Rating | 4.6 (9 ratings) — better | 2.0 (1 ratings) |
| Positive reviews | 50.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 9 — better | 1 |
| Update frequency | Monthly — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 47 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Moog Music Inc. | Los Palmos |
Customer experience
MF
MIDI World
In-app purchases
MF
No in-app purchases
MIDI World
No in-app purchases









