# Deep Synth vs MIDI FX PRO

The clearest difference is rating: MIDI FX PRO at 5.0 against Deep Synth's 4.0. Deep Synth's advantage is price ($4.99 vs $9.99) and iOS requirement (10.0 vs 14.7). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

Deep Synth costs $4.99 and MIDI FX PRO $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MIDI FX PRO holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Deep Synth | MIDI FX PRO |
| --- | --- | --- |
| Price | **$4.99** | $9.99 |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/deep-synth-fm-synthesizer/id1203273984/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/midi-fx-pro/id6444039855/reviews)** |
| Number of ratings | 2 | **3** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Paid | Paid |
| Size | 9 MB | 263 MB |
| Requires iOS | **10.0** | 14.7 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [Jorge Arroyo](https://appshunter.io/developer/548989572) |

## What reviewers say

### Deep Synth

[App page](https://appshunter.io/ios/app/deep-synth-fm-synthesizer/id1203273984)

Create unique sounds with this FM synthesizer app. It features real-time wave manipulation, multiple sound effects, and MIDI keyboard support. Explore dynamic sound design with its intuitive interface.

**Highlights:** Real-time wave form editing, Simple envelope filter, Reverb and tremolo effects, Polyphonic keyboard with 5 octaves, MIDI keyboard support, AUV3 Audio Unit instrument

**In-app purchases:** none


### MIDI FX PRO

[App page](https://appshunter.io/ios/app/midi-fx-pro/id6444039855)

This app is a powerful MIDI workstation for iOS and Mac, allowing users to control and process MIDI signals. It offers features like harmonization, transposition, arpeggiation, and sequencing for external or virtual synths. It also includes internal instruments and effects for mobile music creation.

**Highlights:** MIDI signal processing, Harmonize, Transpose, Arpeggiate, Sequencer for synths, Delay/looper, Internal instruments (drums, piano, synth), Filter notes by velocity

**In-app purchases:** none


## Frequently asked questions

### Is Deep Synth free?

Deep Synth costs $4.99, with no in-app purchases.

### Is MIDI FX PRO free?

MIDI FX PRO costs $9.99, with no in-app purchases.

### Which has better reviews, Deep Synth or MIDI FX PRO?

MIDI FX PRO is rated higher. Deep Synth averages 4.0 out of 5 from 2 ratings, while MIDI FX PRO averages 5.0 from 3 ratings.

### Do Deep Synth or MIDI FX PRO have ads?

Neither Deep Synth nor MIDI FX PRO shows ads.

### Which is updated more often, Deep Synth or MIDI FX PRO?

Deep Synth ships an update monthly, and MIDI FX PRO monthly. Most recently, Deep Synth was updated on November 2, 2026 and MIDI FX PRO on November 3, 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.*