# Sequencer Rack 1 vs PolyIvoks Filter

The clearest difference is review sentiment: PolyIvoks Filter at 86% against Sequencer Rack 1's 0%. PolyIvoks Filter also leads on price (Free vs $3.99) and rating (4.7 vs 4.0). On ads, in-app purchases and device support there is nothing between them.

PolyIvoks Filter is free to download; Sequencer Rack 1 costs $3.99 up front. Sequencer Rack 1 sells 1 one-off in-app purchase and PolyIvoks Filter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PolyIvoks Filter holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: PolyIvoks Filter has 21 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Sequencer Rack 1's written reviews are positive against 86% of PolyIvoks Filter's.

Sequencer Rack 1 ships an update every 91 months, PolyIvoks Filter fortnightly. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sequencer Rack 1 | PolyIvoks Filter |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/sequencer-rack-1-groovebox/id1455358759/reviews) | **[4.7 (21 ratings)](https://appshunter.io/ios/app/polyivoks-filter/id1507649629/reviews)** |
| Number of ratings | 2 | **21** |
| Positive reviews | 0.0% of reviews | **85.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 91 months | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 26 MB | 17 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [RRS, OOO](https://appshunter.io/developer/1486125568) |

## What reviewers say

### Sequencer Rack 1

[App page](https://appshunter.io/ios/app/sequencer-rack-1-groovebox/id1455358759)

Create music and beats with a step sequencer that resembles a compact machine. It offers 16 voices across 16 patterns, with various sounds, effects, and playback controls.

**Highlights:** 16 voices and 16 patterns, 16 diverse sounds (drums, synths, guitars), Chord and synthesizer pad functionality, Phase and virtual speaker effects, Export to WAV, Sound pitch and playback control, Tempo and volume management

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sequencer Rack 1 unlock export | $1.99 | one-time |


### 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 Sequencer Rack 1 free?

Sequencer Rack 1 costs $3.99, and also offers in-app purchases.

### Is PolyIvoks Filter free?

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

### Which has better reviews, Sequencer Rack 1 or PolyIvoks Filter?

PolyIvoks Filter is rated higher. Sequencer Rack 1 averages 4.0 out of 5 from 2 ratings, while PolyIvoks Filter averages 4.7 from 21 ratings.

### Do Sequencer Rack 1 or PolyIvoks Filter have ads?

Neither Sequencer Rack 1 nor PolyIvoks Filter shows ads.

### Which is updated more often, Sequencer Rack 1 or PolyIvoks Filter?

Sequencer Rack 1 ships an update every 91 months, and PolyIvoks Filter fortnightly. Most recently, Sequencer Rack 1 was updated on October 7, 2026 and PolyIvoks Filter on October 24, 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.*