Sequencer Rack 1 vs PolyIvoks Filter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sequencer Rack 1
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.
- 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
Read full descriptionHide full description
Sequencer Rack 1 is step sequencer app looking like a small machine. It has 16 voices that can be used in 16 patterns. It is very easy to create music and beats with it. However the sequencer has its limits. Features: - 16 different sounds including drums, synthesizers and guitars - Chords in D major - Syntesizer pads that can play the current chord - 2 effects (phase and virtual speaker) - export to .wav file - sound pitch control for every sound - can play sounds backwards - tempo BPM control - select beats per minute - volume control - can play in loop - pads volume control
PolyIvoks Filter
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.
- Standalone and AUv3 plugin
- Modeled vintage filter
- LFO and envelope modulation
- Stereo output
- Scalable GUI
- Undo/Redo and A/B comparison
Read full descriptionHide full description
PolyIvoks Filter AUv3 plug-in — comes as time-limited Demo-version for you to try. It gives you 5 minutes of Free play time. (You can reload the PolyIvoks Filter AUv3 plug-in as many times as you want, thereby you get the Demo period again and again.) Unlimited version of PolyIvoks Filter AUv3 plug-in comes as In-App Purchase PolyIvoks Filter developed on the basis of the filter of the legendary Soviet synthesizer from 1980s, and only now the legendary Soviet analog sound became available in stereo mode. Features: • Standalone and AUv3 plug-in; • Precise port of Rack Extensions plug-in; • Modeled vintage Filter; • Undo/Redo; • A/B comparison; • 2x/4x/8x Upsampling; • Macro controllers; • Built-in Gain Match; • Scalable GUI. MODULATOR house the LFO controls: MODE — which offers four waveforms, including Noise and a stepped function for Sample & Hold effects, well as SPEED control. FILTER: The four controls adjust CUTOFF, RESONANCE, LPF to BPF switch, MODULATION (LFO) level and ENVELOPE level (You can set positive or negative values). ENVELOPE: repeating ATTACK/DECAY envelope. MASTER: the rightmost unit has 3 regulators ENVELOPE level (You can set positive or negative values), VOLUME (output gain) and DIGITAL/ANALOG switch. To use PolyIvoks Filter as a plug-in, you need an AUv3-compatible host app like GarageBand, Auria, AUM, Cubasis and more — PolyIvoks Filter will appear in the list of Audio Unit extensions for effect plug-ins in the host app.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Sequencer Rack 1 | PolyIvoks Filter |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.0 (2 ratings) | 4.7 (21 ratings) — better |
| Positive reviews | 0.0% of reviews | 85.7% of reviews — better |
| Number of ratings | 2 | 21 — better |
| Update frequency | Every 91 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 10.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksandar Mlazev | RRS, OOO |
Customer experience
Sequencer Rack 1
PolyIvoks Filter
In-app purchases
Sequencer Rack 1
- Sequencer Rack 1 unlock export$1.99
PolyIvoks Filter
- RRS PolyIvoks Filter Unlimited$4.99
Questions
Is Sequencer Rack 1 free?
Is PolyIvoks Filter free?
Which has better reviews, Sequencer Rack 1 or PolyIvoks Filter?
Do Sequencer Rack 1 or PolyIvoks Filter have ads?
Which is updated more often, Sequencer Rack 1 or PolyIvoks Filter?
Other comparisons















