# Arctic ProSynth vs TerribleSync

The clearest difference is price: TerribleSync at Free against Arctic ProSynth's $9.99. TerribleSync also leads on rating (4.0 vs 3.3) and review sentiment (83% vs 71%). Arctic ProSynth's advantage is update cadence (every 4 months vs every 35 months). On ratings volume, ads and in-app purchases there is nothing between them.

TerribleSync is free to download; Arctic ProSynth costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TerribleSync holds the better App Store score, 4.0 against 3.3. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews point the same way: 71% of Arctic ProSynth's written reviews are positive against 83% of TerribleSync's.

Arctic ProSynth ships an update every 4 months, TerribleSync every 35 months. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Arctic ProSynth | TerribleSync |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.3 (8 ratings)](https://appshunter.io/ios/app/arctic-prosynth/id676870971/reviews) | **[4.0 (4 ratings)](https://appshunter.io/ios/app/terriblesync/id1109759662/reviews)** |
| Number of ratings | **8** | 4 |
| Positive reviews | 71.4% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 35 months |
| Monetization | Paid | **Free** |
| Size | 47 MB | 1 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [One Red Dog Media Pty Ltd](https://appshunter.io/developer/398933972) | [Benjamin Roth](https://appshunter.io/developer/448057425) |

## 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


### TerribleSync

[App page](https://appshunter.io/ios/app/terriblesync/id1109759662)

Control the tempo of music hardware like synthesizers and drum machines using your iPhone or iPad. Features include tap tempo, precise dial adjustment, and buttons for performance effects. Requires a 3.5mm audio cable for connection.

**Highlights:** Tap tempo, Rotary tempo dial, Pause/mute button, Performance effect buttons, Clear interface, Open source project

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Arctic ProSynth free?

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

### Is TerribleSync free?

TerribleSync is free to download, with no in-app purchases.

### Which has better reviews, Arctic ProSynth or TerribleSync?

TerribleSync is rated higher. Arctic ProSynth averages 3.3 out of 5 from 8 ratings, while TerribleSync averages 4.0 from 4 ratings.

### Do Arctic ProSynth or TerribleSync have ads?

Neither Arctic ProSynth nor TerribleSync shows ads.

### Which is updated more often, Arctic ProSynth or TerribleSync?

Arctic ProSynth ships an update every 4 months, and TerribleSync every 35 months. Most recently, Arctic ProSynth was updated on October 7, 2026 and TerribleSync on October 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.*