# DC vs PolyIvoks Filter

The clearest difference is price: PolyIvoks Filter at Free against DC's $2.99. PolyIvoks Filter also leads on rating (4.7 vs 4.2) and update cadence (fortnightly vs every 6 months). DC's advantage is in-app purchases (none vs 1). On ratings volume, ads and device support there is nothing between them.

PolyIvoks Filter is free to download; DC costs $2.99 up front. PolyIvoks Filter sells 1 one-off in-app purchase. DC asks for nothing beyond the download.

PolyIvoks Filter holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 14 and 21 respectively. Written reviews point the same way: 64% of DC's written reviews are positive against 86% of PolyIvoks Filter's.

DC ships an update every 6 months, PolyIvoks Filter fortnightly. The most recent releases landed on September 26, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | DC | PolyIvoks Filter |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.2 (14 ratings)](https://appshunter.io/ios/app/dc-9-overdrive/id1062115431/reviews) | **[4.7 (21 ratings)](https://appshunter.io/ios/app/polyivoks-filter/id1507649629/reviews)** |
| Number of ratings | 14 | **21** |
| Positive reviews | 63.6% of reviews | **85.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 17 MB | 17 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blamsoft, Inc.](https://appshunter.io/developer/1051938244) | [RRS, OOO](https://appshunter.io/developer/1486125568) |

## What reviewers say

### DC

[App page](https://appshunter.io/ios/app/dc-9-overdrive/id1062115431)

This audio effect plug-in emulates a classic overdrive guitar pedal using advanced circuit modeling. It provides an authentic analog sound and integrates seamlessly with iOS Digital Audio Workstations.

**Highlights:** Circuit-modeled overdrive emulation, Authentic analog sound, Audio Unit Extension (AUv3) support, Expands controls when touched, Compatible with popular iOS DAWs, Desktop quality algorithm

**In-app purchases:** none


### PolyIvoks Filter

[App page](https://appshunter.io/ios/app/polyivoks-filter/id1507649629)

This audio effect plugin emulates the sound of a legendary 1980s Soviet synthesizer filter. It offers stereo output and a range of modulation and envelope controls for creative sound shaping. A demo version is available with limited free play time.

**Highlights:** Standalone and AUv3 plugin, Modeled vintage filter, LFO and envelope modulation, Stereo output, Scalable GUI, Undo/Redo and A/B comparison

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RRS PolyIvoks Filter Unlimited | $4.99 | one-time |


## Frequently asked questions

### Is DC free?

DC costs $2.99, with no in-app purchases.

### Is PolyIvoks Filter free?

PolyIvoks Filter is free to download, with in-app purchases available.

### Which has better reviews, DC or PolyIvoks Filter?

PolyIvoks Filter is rated higher. DC averages 4.2 out of 5 from 14 ratings, while PolyIvoks Filter averages 4.7 from 21 ratings.

### Do DC or PolyIvoks Filter have ads?

Neither DC nor PolyIvoks Filter shows ads.

### Which is updated more often, DC or PolyIvoks Filter?

DC ships an update every 6 months, and PolyIvoks Filter fortnightly. Most recently, DC was updated on September 26, 2026 and PolyIvoks Filter on September 13, 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.*