# MF vs SL950

The clearest difference is price: MF at $14.99 against SL950's $24.99. MF also leads on iOS requirement (11.0 vs 13.0). SL950's advantage is update cadence (every 4 days vs monthly). On ads, in-app purchases and device support there is nothing between them.

MF costs $14.99 and SL950 $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MF ships an update monthly, SL950 every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MF | SL950 |
| --- | --- | --- |
| Price | **$14.99** | $24.99 |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/mf-107s-freqbox/id6450717622/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Paid | — |
| Size | 41 MB | 24 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Moog Music Inc.](https://appshunter.io/developer/396776421) | [Delta Seven Kft.](https://appshunter.io/developer/1355331300) |

## What reviewers say

### MF

[App page](https://appshunter.io/ios/app/mf-107s-freqbox/id6450717622)

This app recreates a classic analog effects pedal, offering a voltage-controlled oscillator with variable waveshape and envelope follower. It allows for processing and modulation of various audio inputs to create unique musical sounds.

**Highlights:** Voltage-controlled oscillator (VCO), Variable waveshape, Hard sync and frequency modulation, Envelope follower, Modulate VCO frequency with input dynamics, Mix VCO with audio input, AUv3 effects plug-in

**Features:** Vision Pro support

**In-app purchases:** none


### SL950

[App page](https://appshunter.io/ios/app/sl950/id6502950757)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MF free?

MF costs $14.99, with no in-app purchases.

### Is SL950 free?

SL950 costs $24.99, with no in-app purchases.

### Do MF or SL950 have ads?

Neither MF nor SL950 shows ads.

### Which is updated more often, MF or SL950?

MF ships an update monthly, and SL950 every 4 days. Most recently, MF was updated on November 3, 2026 and SL950 on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*