Comparison

MF vs MIDI World

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

Head to head
About

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.

Highlights
  • Analog 4-pole lowpass filter emulation
  • Envelope follower for dynamic motion
  • Processes guitar, voice, and synths
  • AUv3 effects plugin
  • Warm and vibrant sound quality
Features
Read 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.

About

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.

Highlights
  • 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
Features
Read 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

MF3 screens
MIDI World4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

MF costs $14.99 and MIDI World $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

MF ships an update monthly, MIDI World every 7 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

Scorecard6 real differences · 4 level
MF versus MIDI World: the parameters behind the verdict, then further details
ParameterMFMIDI World
Price$14.99$0.99 — better
Rating4.6 (9 ratings) — better2.0 (1 ratings)
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings9 — better1
Update frequencyMonthly — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better18.0
Further details — not scored
Size47 MB14 MB
Age rating4+4+
DeveloperMoog Music Inc.Los Palmos

Customer experience

MF

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

MIDI World

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

MF

No in-app purchases

None

MIDI World

No in-app purchases

Questions

Is MF free?
MF costs $14.99, with no in-app purchases.
Is MIDI World free?
MIDI World costs $0.99, with no in-app purchases.
Which has better reviews, MF or MIDI World?
MF is rated higher. MF averages 4.6 out of 5 from 9 ratings, while MIDI World averages 2.0 from 1 ratings.
Do MF or MIDI World have ads?
Neither MF nor MIDI World shows ads.
Which is updated more often, MF or MIDI World?
MF ships an update monthly, and MIDI World every 7 months. Most recently, MF was updated on October 27, 2026 and MIDI World on October 28, 2026.

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