Comparison

Filterjam vs RRS Ivoks

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

Head to head
About

Filterjam

This app offers a multiband resonant filter for creating unique audio effects. It divides input signals into four bands, allowing for various sonic manipulations from subtle enhancements to extreme sound mangling.

Highlights
  • Multiband resonant filtering
  • 4-band signal division
  • Sum or multiply band modes
  • Versatile sound shaping
  • Ringmod-like effects
Features
Read full description

Filterjam is a multi-band resonant filter delivering weird ringmod-like filtered sounds. The input signal is divided into 4 bands that are then summed or multiplied together according to the selected mode. Filterjam can be very harsh or gentle, it can add brightness or depth to synth sounds, but it can also completely mangle acoustic sources.

About

RRS Ivoks

This app emulates analog synthesizers, offering a range of sound shaping tools including oscillators, filters, and amplifiers. It supports AUv3 hosting for integration with music production apps and provides extensive MIDI control.

Highlights
  • Analog Emulation
  • AUv3 Compatible
  • Dual Oscillators
  • Filter Block with ADSR
  • Amplifier Block with ADSR
  • Modulation (LFO) Controls
  • MIDI CC Implementation
Read full description

RRS Ivoks AUv3 instrument — comes as time-limited Demo-version for you to try. It gives you 5 minutes of Free play time. (You can reload the RRS Ivoks AUv3 instrument as many times as you want, thereby you get the Demo period again and again.) Unlimited version of RRS Ivoks AUv3 instrument comes as In-App Purchase. Features: • Analog Emulation; • Undo/Redo; • A/B comparison; • 2x/4x/8x Upsampling; • Macro controllers; • Scalable GUI. On the centre panel are located two audio-frequency oscillators: • OSC1 offers frequency Band regulator, five Waveforms and controls for LFO Modulation level plus OSC2 Cross-modulation; • OSC2 offers the same frequency Band and Waveforms, an independent control for Modulation depth, plus Detuning. Underneath these located the mixer, which offers level controls for the two Oscillators, the Noise generator, and Saturation Drive. To the right of these, located the filter block. The top half is a standard ADSR envelope — until you flip the switch «Envelope mode», when it becomes a repeating AD-envelope instead. The four controls at the bottom adjust Cut-off, Resonance, LPF to BPF switch, Modulation level and Envelope level. Next after the filter is the amplifier block, it also has ADSR envelope along with another Modulation level and Velocity sensitivity control. Again, the envelope can be switched to a Repeating Mode that generates a triangular waveform determined by the Attack and Decay settings, providing some of the instrument’s most distinctive effects. The leftmost panels house the Modulation (LFO) controls (top), Mode which offers four waveforms, including noise, and a stepped Function for sample & hold (S&H) effects, well as Speed control. And global settings such as the master Tune, master Volume, Legato mode, Monophonic and Duophonic operation and Unison switches, and the Glide control. To use Ivoks as an instrument, you need an AUv3-compatible host app like GarageBand, Auria, AUM, Cubasis and more — RRS Ivoks will appear in the list of Audio Unit instruments in the host app. MIDI CC Implementation Chart: • CC#003 => HQ • CC#009 => Saturation Drive • CC#014 => Modulator Speed • CC#015 => Modulator Mode • CC#020 => Filter Attack • CC#021 => AMP Attack • CC#022 => Filter Decay • CC#023 => AMP Decay • CC#024 => Filter Sustain • CC#025 => AMP Sustain • CC#026 => Filter Release • CC#027 => AMP Release • CC#028 => Filter Envelope Mode • CC#029 => AMP Envelope Mode • CC#030 => OSC1 Band • CC#031 => OSC2 Band • CC#085 => OSC1 Waveform • CC#086 => OSC2 Waveform • CC#087 => OSC1 XMod • CC#089 => OSC2 Detune • CC#090 => MOD to OSC1 • CC#102 => MOD to OSC2 • CC#103 => OSC1 Level • CC#104 => OSC2 Level • CC#105 => Noise Generator • CC#106 => Global Tune • CC#107 => Global Glide • CC#108 => Global Volume • CC#109 => Global Voice • CC#110 => Global Unison • CC#111 => Global Retrig • CC#112 => Filter Cut-off • CC#113 => Filter Resonance • CC#114 => Filter Mode • CC#115 => MOD to Filter • CC#116 => Filter Envelope • CC#117 => MOD to AMP • CC#118 => Velocity Sensitvity

Screenshots

Filterjam2 screens
RRS Ivoks4 screens

Verdict

The call

The clearest difference is rating: Filterjam at 5.0 against RRS Ivoks's 4.4. Filterjam also leads on in-app purchases (none vs 1) and review sentiment (83% vs 63%). RRS Ivoks's advantage is update cadence (fortnightly vs every 22 months) and iOS requirement (10.0 vs 14.0). On price, ratings volume, ads 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

Both are free to download. RRS Ivoks sells 1 one-off in-app purchase. Filterjam asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Filterjam holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 34 and 46 respectively. Written reviews point the same way: 83% of Filterjam's written reviews are positive against 63% of RRS Ivoks's.

UpkeepUpdate frequency

Filterjam ships an update every 22 months, RRS Ivoks fortnightly. The most recent releases landed on October 15, 2026 and October 21, 2026 respectively.

Scorecard6 real differences · 4 level
Filterjam versus RRS Ivoks: the parameters behind the verdict, then further details
ParameterFilterjamRRS Ivoks
PriceFreeFree
Rating5.0 (34 ratings) — better4.4 (46 ratings)
Positive reviews83.3% of reviews — better63.3% of reviews
Number of ratings3446 — better
Update frequencyEvery 22 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.010.0 — better
Further details — not scored
Size25 MB19 MB
Age rating4+4+
DeveloperAudioThing Ltd.RRS, OOO

Customer experience

Filterjam

All ratings34 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral16.7%
Negative0.0%

RRS Ivoks

All ratings45 ratings
Positive82.2%
Neutral4.4%
Negative13.3%
Written reviews30 reviews
Positive63.3%
Neutral3.3%
Negative33.3%

In-app purchases

None

Filterjam

No in-app purchases

1 purchases

RRS Ivoks

One-time1
  • RRS Ivoks Unlimited$8.99

Questions

Is Filterjam free?
Filterjam is free to download, with no in-app purchases.
Is RRS Ivoks free?
RRS Ivoks is free to download, with in-app purchases available.
Which has better reviews, Filterjam or RRS Ivoks?
Filterjam is rated higher. Filterjam averages 5.0 out of 5 from 34 ratings, while RRS Ivoks averages 4.4 from 46 ratings.
Do Filterjam or RRS Ivoks have ads?
Neither Filterjam nor RRS Ivoks shows ads.
Which is updated more often, Filterjam or RRS Ivoks?
Filterjam ships an update every 22 months, and RRS Ivoks fortnightly. Most recently, Filterjam was updated on October 15, 2026 and RRS Ivoks on October 21, 2026.

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