Comparison

Sequencer Rack 1 vs PolyIvoks Filter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read 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

About

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.

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

Sequencer Rack 12 screens
PolyIvoks Filter4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Sequencer Rack 1 versus PolyIvoks Filter: the parameters behind the verdict, then further details
ParameterSequencer Rack 1PolyIvoks Filter
Price$3.99Free — better
Rating4.0 (2 ratings)4.7 (21 ratings) — better
Positive reviews0.0% of reviews85.7% of reviews — better
Number of ratings221 — better
Update frequencyEvery 91 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.610.0 — better
Further details — not scored
Size26 MB17 MB
Age rating4+4+
DeveloperAleksandar MlazevRRS, OOO

Customer experience

Sequencer Rack 1

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

PolyIvoks Filter

All ratings21 ratings
Positive90.5%
Neutral0.0%
Negative9.5%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

In-app purchases

1 purchases

Sequencer Rack 1

One-time1
  • Sequencer Rack 1 unlock export$1.99
1 purchases

PolyIvoks Filter

One-time1
  • RRS PolyIvoks Filter Unlimited$4.99

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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