# iAutoharp vs MF

The clearest difference is review sentiment: MF at 100% against iAutoharp's 19%. MF also leads on rating (5.0 vs 2.7) and update cadence (monthly vs every 15 months). iAutoharp's advantage is price ($1.99 vs $14.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

iAutoharp costs $1.99 and MF $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MF holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews point the same way: 19% of iAutoharp's written reviews are positive against 100% of MF's.

iAutoharp ships an update every 15 months, MF monthly. The most recent releases landed on September 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | iAutoharp | MF |
| --- | --- | --- |
| Price | **$1.99** | $14.99 |
| Rating | [2.7 (3 ratings)](https://appshunter.io/ios/app/iautoharp/id304091719/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/mf-102s-ring-modulator/id6450608409/reviews)** |
| Number of ratings | 3 | **9** |
| Positive reviews | 18.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Monthly** |
| Monetization | Paid | Paid |
| Size | 4 MB | 42 MB |
| Requires iOS | 15.2 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HotPaw Productions](https://appshunter.io/developer/285074853) | [Moog Music Inc.](https://appshunter.io/developer/396776421) |

## What reviewers say

### iAutoharp

[App page](https://appshunter.io/ios/app/iautoharp/id304091719)

Easily play chords and strum along to popular tunes without musical training. Reconfigure chord buttons for over 150 chords per key and experiment with melodies by picking subsets of strings.

**Highlights:** Tap chord buttons to strum, Switch keys and chords effortlessly, Reconfigure over 150 chords per key, Pick out melodies by pinching strings, Accompaniment for singing or playing along

**In-app purchases:** none


### MF

[App page](https://appshunter.io/ios/app/mf-102s-ring-modulator/id6450608409)

This app meticulously recreates a classic analog effects pedal, offering a voltage-controlled ring modulator, carrier oscillator, and LFO. It's designed to process and modulate any audio input, providing a unique, retro-futuristic sound with organic parameter interaction for a musical playing experience.

**Highlights:** Ring Modulator, Voltage-controlled Carrier Oscillator, Voltage-controlled LFO, AUv3 effects plugin, Processes any audio input, Organic parameter interaction

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iAutoharp free?

iAutoharp costs $1.99, with no in-app purchases.

### Is MF free?

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

### Which has better reviews, iAutoharp or MF?

MF is rated higher. iAutoharp averages 2.7 out of 5 from 3 ratings, while MF averages 5.0 from 9 ratings.

### Do iAutoharp or MF have ads?

Neither iAutoharp nor MF shows ads.

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

iAutoharp ships an update every 15 months, and MF monthly. Most recently, iAutoharp was updated on September 21, 2026 and MF on October 16, 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.*