# iFretless Brass vs Deep Synth

The clearest difference is rating: iFretless Brass at 4.9 against Deep Synth's 4.0. iFretless Brass also leads on review sentiment (68% vs 50%) and ratings volume (10 vs 2). Deep Synth's advantage is price ($4.99 vs $9.99) and iOS requirement (10.0 vs 15.6). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

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

iFretless Brass holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: iFretless Brass has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 68% of iFretless Brass's written reviews are positive against 50% of Deep Synth's.

iFretless Brass ships an update every 6 weeks, Deep Synth monthly. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | iFretless Brass | Deep Synth |
| --- | --- | --- |
| Price | $9.99 | **$4.99** |
| Rating | **[4.9 (10 ratings)](https://appshunter.io/ios/app/ifretless-brass/id915761815/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/deep-synth-fm-synthesizer/id1203273984/reviews) |
| Number of ratings | **10** | 2 |
| Positive reviews | **68.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Paid | Paid |
| Size | 241 MB | 9 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) |

## What reviewers say

### iFretless Brass

[App page](https://appshunter.io/ios/app/ifretless-brass/id915761815)

This app allows string instrument players to create expressive music using a variety of brass and synth sounds. It features detailed sample libraries and advanced touch sensitivity for natural performance. Supports MIDI and Audio Unit integration for external devices and recording apps.

**Highlights:** Expressive brass and synth sounds, Detailed sample library, Advanced touch pressure detection, Natural vibrato and slides, MIDI input/output support, Audio Unit integration

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is iFretless Brass free?

iFretless Brass costs $9.99, with no in-app purchases.

### Is Deep Synth free?

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

### Which has better reviews, iFretless Brass or Deep Synth?

iFretless Brass is rated higher. iFretless Brass averages 4.9 out of 5 from 10 ratings, while Deep Synth averages 4.0 from 2 ratings.

### Do iFretless Brass or Deep Synth have ads?

Neither iFretless Brass nor Deep Synth shows ads.

### Which is updated more often, iFretless Brass or Deep Synth?

iFretless Brass ships an update every 6 weeks, and Deep Synth monthly. Most recently, iFretless Brass was updated on November 1, 2026 and Deep Synth on November 2, 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.*