# VOSIS Pro vs sqsl Latch

The clearest difference is price: VOSIS Pro at $7.99 against sqsl Latch's $19.99. VOSIS Pro also leads on rating (4.6 vs 3.7) and device support (4 vs 1). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

VOSIS Pro costs $7.99 and sqsl Latch $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

VOSIS Pro holds the better App Store score, 4.6 against 3.7. Both are backed by a comparable volume of ratings — 7 and 3 respectively. Written reviews split almost evenly too, at 67% and 67% positive.

VOSIS Pro ships an update every 3 months, sqsl Latch every 5 months. The most recent releases landed on October 27, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | VOSIS Pro | sqsl Latch |
| --- | --- | --- |
| Price | **$7.99** | $19.99 |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/vosis-pro/id1588226508/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/sqsl-latch/id1659829499/reviews) |
| Number of ratings | **7** | 3 |
| Positive reviews | 66.7% of reviews | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Paid | Paid |
| Size | 12 MB | 4 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | **iPhone, iPad, iPod, Mac** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Life Orange LLC](https://appshunter.io/developer/783342054) | [Michal Macura](https://appshunter.io/developer/1648278061) |

## What reviewers say

### VOSIS Pro

[App page](https://appshunter.io/ios/app/vosis-pro/id1588226508)

Transform images into unique sounds and compose visual music. This tool offers advanced filters and MIDI control for experimental sound design and creative audio manipulation.

**Highlights:** Image to sound conversion, Advanced image filters, MIDI keyboard support, Customizable presets, Unlimited recording, Video file loading (iPad/Desktop)

**Features:** Vision Pro support

**In-app purchases:** none


### sqsl Latch

[App page](https://appshunter.io/ios/app/sqsl-latch/id1659829499)

This app is a conceptual MIDI controller and sequencer for creating drone, textural, and soundscape synthesizer patches. It allows for sending MIDI notes, pitch bend, and CC values with advanced looping and parameter modulation features. Save and recall your setups for later use.

**Highlights:** MIDI note, pitch bend, and CC output, 16 groups with assignable MIDI channel and color, 8 assignable Continuous Controllers per group, Looper for recording and shuffling note phrases, Adjustable phrase playback speed and synchronization, Parameter modulation via internal randomizer, Smooth parameter transitions with LAG control

**In-app purchases:** none


## Frequently asked questions

### Is VOSIS Pro free?

VOSIS Pro costs $7.99, with no in-app purchases.

### Is sqsl Latch free?

sqsl Latch costs $19.99, with no in-app purchases.

### Which has better reviews, VOSIS Pro or sqsl Latch?

VOSIS Pro is rated higher. VOSIS Pro averages 4.6 out of 5 from 7 ratings, while sqsl Latch averages 3.7 from 3 ratings.

### Do VOSIS Pro or sqsl Latch have ads?

Neither VOSIS Pro nor sqsl Latch shows ads.

### Which is updated more often, VOSIS Pro or sqsl Latch?

VOSIS Pro ships an update every 3 months, and sqsl Latch every 5 months. Most recently, VOSIS Pro was updated on October 27, 2026 and sqsl Latch on September 26, 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.*