# Arctic ProSynth vs SL Tune

The clearest difference is rating: SL Tune at 5.0 against Arctic ProSynth's 3.3. SL Tune also leads on update cadence (weekly vs every 4 months) and review sentiment (100% vs 71%). Arctic ProSynth's advantage is ratings volume (8 vs 1). On ads, in-app purchases, monetization model and iOS requirement there is nothing between them.

Arctic ProSynth costs $9.99 and SL Tune $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SL Tune holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: Arctic ProSynth has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 71% of Arctic ProSynth's written reviews are positive against 100% of SL Tune's.

Arctic ProSynth ships an update every 4 months, SL Tune weekly. The most recent releases landed on October 22, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Arctic ProSynth | SL Tune |
| --- | --- | --- |
| Price | $9.99 | **$7.99** |
| Rating | [3.3 (8 ratings)](https://appshunter.io/ios/app/arctic-prosynth/id676870971/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sl-tune/id6797349071/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 71.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Paid | Paid |
| Size | 47 MB | 17 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [One Red Dog Media](https://appshunter.io/developer/398933972) | [VIACHESLAV ZHILTSOV](https://appshunter.io/developer/1862005860) |

## What reviewers say

### Arctic ProSynth

[App page](https://appshunter.io/ios/app/arctic-prosynth/id676870971)

Create bold and tough electronic music with a modern subtractive synthesizer. Explore rich sound design with powerful oscillators, dual filters, and versatile effects. Record and share your creations easily.

**Highlights:** HyperOscillators for fat sounds, Dual multi-mode filters, Master effects with adjustable order, Integrated Vocoder, 16x4 gated step sequencer, Live audio and MIDI recording, Preset and bank sharing

**In-app purchases:** none


### SL Tune

[App page](https://appshunter.io/ios/app/sl-tune/id6797349071)

This app offers vocal pitch and tone effects for iPad, providing quick corrective or creative processing. It features fast pitch correction, modern vocal tone shaping, and mix control for flexible audio manipulation. It supports AUv3 for integration with compatible music hosts.

**Highlights:** Fast pitch correction, Modern vocal tone shaping, Mix control, Factory and user presets, AUv3 support

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

**In-app purchases:** none


## Frequently asked questions

### Is Arctic ProSynth free?

Arctic ProSynth costs $9.99, with no in-app purchases.

### Is SL Tune free?

SL Tune costs $7.99, with no in-app purchases.

### Which has better reviews, Arctic ProSynth or SL Tune?

SL Tune is rated higher. Arctic ProSynth averages 3.3 out of 5 from 8 ratings, while SL Tune averages 5.0 from 1 ratings.

### Do Arctic ProSynth or SL Tune have ads?

Neither Arctic ProSynth nor SL Tune shows ads.

### Which is updated more often, Arctic ProSynth or SL Tune?

Arctic ProSynth ships an update every 4 months, and SL Tune weekly. Most recently, Arctic ProSynth was updated on October 22, 2026 and SL Tune on October 15, 2026.

---

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