Violin ٞ vs Kompresor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Violin ٞ
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A realistic Violin app. Play by bowing (arco) or plucking (pizzicato).
Kompresor
This audio tool offers versatile compression with multiple algorithms and processing modes for various signals, from mix bus to mastering. It provides fine-tuning options like DELTA monitoring and external sidechaining for precise audio manipulation.
- Multiple compression algorithms
- Five processing modes (stereo, mid, side, left, right)
- External sidechain input
- DELTA monitoring
- Fast attack time (0.01ms)
- Peak and RMS detectors
- AUv3 plugin compatibility
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Kompresor is a versatile and powerful, yet easy to use, compressor. With several compression algorithms and processing modes under the hood, Kompresor is suitable for use on a wide variety of signals, on the mix bus, or for mastering. For the most transparent compression, ideal for mastering, use AUTO or "AUTO A" envelopes. Use PROGRAM envelope for an easy mix bus gluing effect. If you are after the classic style compression switch to feedback configuration. Select RMS detector for a smoother compression suitable for vocals, guitars, etc. Five processing modes allow you to go from the standard stereo (L/R) compression mode to more surgical modes like compressing the mid (sum) or side (diff) signal only, or compressing exclusively the left or right channel. To help you fine tune compression parameters, enable DELTA feature to monitor only the difference between the uncompressed and compressed signal. Last but not least, Kompresor has an external side chain input for those times when you need to duck one signal based on another one. Features: – Four types of compression Attack/Release envelopes SIMPLE, AUTO, AUTO A, and PROGRAM. – Five processing modes LEFT, RIGHT, MID, SIDE, STEREO – External sidechaining (only in hosts that support external sidechaining) – Very fast attack time - 0.01ms – Ratio up to 30:1 – Soft knee up to 50dB width – Feedforward and feedback configuration – Peak and RMS detectors – Sidechain high pass filter – Parallel processing – Monitoring only the difference between the uncompressed and compressed signal – Intelligent auto makeup gain – 4x oversampling to avoid aliasing – Plenty of factory presets to provide a starting point Kompresor is primarily an AUv3 effect. To use Kompresor as a plug-in, you will need an AUv3 compatible host such as Garageband, AUM, etc. Kompresor application is there to provide a user manual and a chance to use Kompresor with the microphone input. You can try Kompresor on a macOS or a Windows based machine by downloading the demo version of the plug-in (VST3, AUv2, AAX) from our website (https://www.shatteredglassaudio.com) and running it in a DAW of your choice. Sonically speaking there are no differences between the iOS and macOS/Windows versions of Kompresor.
Screenshots
Verdict
The clearest difference is price: Violin ٞ at $4.99 against Kompresor's $24.99. Kompresor's advantage is update cadence (every 8 months vs every 131 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Violin ٞ costs $4.99 and Kompresor $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Violin ٞ ships an update every 131 months, Kompresor every 8 months. The most recent releases landed on September 25, 2026 and October 3, 2026 respectively.
| Parameter | Violin ٞ | Kompresor |
|---|---|---|
| Price | $4.99 — better | $24.99 |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 131 months | Every 8 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 — better | 15.8 |
| Further details — not scored | ||
| Size | 41 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Egert-Olger Lattemaa | Shattered Glass Audio |
In-app purchases
Violin ٞ
No in-app purchases
Kompresor
No in-app purchases









