# MF-101S Lowpass Filter — Dynamic Motion, Clean Tones

> Analog lowpass filter effect plugin for dynamic audio modulation. (iPhone/iPad app by Moog Music Inc..)

- Source: https://appshunter.io/ios/app/mf-101s-lowpass-filter/id6449946747 (this page in markdown: same URL + `.md`)
- Developer: [Moog Music Inc.](https://appshunter.io/developer/396776421)
- Category: Music, Entertainment
- Price: $14.99
- Rating: 4.50/5 from 8 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 47 MB
- Released: 2023-08-08
- Data updated: 2026-08-12
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/mf-101s-lowpass-filter/id6449946747/reviews.md

## What is MF?

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.

## Key features

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

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/mf-101s-lowpass-filter/id6449946747/reviews.md

### 1/5 — Not working iOS 12.5

*2023-11-26*

Not working on iPhone iOS 12.5 please update them

**Developer response:** Hi hagarcic,

We're sorry to hear you're having problems with iOS 12.5 and the MF-101S. It would be very helpful to know the details of what is happening for you, so that we can address it. Could you please contact us at appsupport@moogmusic.com, thank you!

❤️ your friends at Moog

### 5/5 — All hail MOOG!

*2023-08-11*

Thank you for bringing the foogers to iOS!

## Frequently asked questions about MF

### What is the MF-101S Lowpass Filter?

The MF-101S Lowpass Filter is a digital audio effects plugin that emulates Moog Music's classic MF-101 analog effects pedal. It provides an analog 4-pole lowpass filter and an envelope follower for dynamic sound shaping.

### What audio sources can the MF-101S Lowpass Filter process?

This plugin is designed to process a wide range of audio inputs, including guitars, vocals, synthesizers, and any other imaginable audio source, imparting dynamic motion and filtering to the sound.

### Does the MF-101S Lowpass Filter require a host application?

Yes, the MF-101S Lowpass Filter is an AUv3 effects plugin and requires a compatible host application or Digital Audio Workstation (DAW) to function.

### What is the price of the MF-101S Lowpass Filter?

The MF-101S Lowpass Filter is available for a one-time purchase of $14.99.

### What devices is the MF-101S Lowpass Filter compatible with?

The MF-101S Lowpass Filter is compatible with iPhone, iPad, and iPod devices.

### How often is the MF-101S Lowpass Filter updated?

The latest version, 1.3.0, was released on June 13, 2024, indicating active development and updates for the plugin.

### What is the age rating for the MF-101S Lowpass Filter?

The MF-101S Lowpass Filter has an age rating of 4+, making it suitable for a broad audience.

### Does the MF-101S Lowpass Filter have ads?

No, the MF-101S Lowpass Filter does not contain advertisements.

## Version history (last 5 releases)

### 1.3.0 — 2024-06-13

• Performance improvements to internal DSP.
• Improvements to software licensing.
• Virtual CV slots can now be renamed.
• Added small resize graphic in the bottom right corner to indicates where the resize area is.
• Host automation parameters now look cleaner in DAWs.
• Host automation parameters order is now more logical when viewing as a list.
• LFO phase is now reset when render starts for more consistent render results.
• LFO sync tracking after transport start has been tightened up.
• Fixed MF-105S MURF LFO voltage being output when set to Off.
• Fix for plugin window size not being remembered when closing and re-opening window.
• Fix for flipping switches sometimes causing the UI to slightly shift.

### 1.2.3 — 2024-01-17

Minor improvements.

### 1.2.2 — 2023-12-16

Minor improvements.

### 1.2.1 — 2023-12-08

• Improvements to virtual CV compatibility with Mariana envelopes.

### 1.2.0 — 2023-11-30

• Long press on a MF-105S pattern editor step to set it as the last step for that particular filter band
• Improvements to virtual CV
• Minor performance improvements

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## More apps by Moog Music Inc.

- [Theremini Advanced Software Editor](https://appshunter.io/ios/app/theremini-advanced-software-editor/id929763039)
- [Model 15 Modular Synthesizer](https://appshunter.io/ios/app/model-15-modular-synthesizer/id1041465860)
- [Minimoog Model D Synthesizer](https://appshunter.io/ios/app/minimoog-model-d-synthesizer/id1339418001)
- [Claravox](https://appshunter.io/ios/app/claravox/id1536620093)
- [Animoog Z Synthesizer](https://appshunter.io/ios/app/animoog-z-synthesizer/id1586841361)
- [Mariana Bass Synthesizer](https://appshunter.io/ios/app/mariana-bass-synthesizer/id6449554307)

All apps by Moog Music Inc.: https://appshunter.io/developer/396776421

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-12.*