Comparison

Overdrive Synth 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

Overdrive Synth

Explore unique synth sounds processed through classic guitar overdrive pedals. This app offers professionally recorded samples with multiple keyboard layouts and AUv3/MIDI support. Unlock over 100 additional instruments to expand your sonic palette.

Highlights
  • Vintage synths re-amped through guitar pedals
  • Multiple keyboard layouts
  • AUv3 and MIDI support
  • Professionally recorded samples
  • Expandable instrument library via IAP
Features
Read full description

What does a synthesizer sound like through an overdrive pedal? To answer this great mystery, I visited NightSound Studio to re-amp a plethora of synth tones through various classic guitar pedals. The results are now available for your ears in Overdrive Synth! FEATURES: • Vintage Synths Re-amped Through Guitar Pedals • 3 Keyboard Layouts (Piano, Guitar & Scaled) • AUv3 & MIDI Support • Professionally Recorded Samples • 10 Instruments (+100 more with IAP) • Proudly Built With AudioKit The app comes with 10 default instruments, and If you like the starting sounds, unlock the full version (+100 instruments) and become a turbo-powered crunch synth master! I'm also EXTREMELY excited to bring you the full video development story on how this app was made! If you're curious to see what all went into making this app including the recording process, follow the behind-the-scenes link in the app! Special thanks to Nightsound Studios where the samples were recorded, AudioKit for providing the tools to build this app, the amazing open source synth community, and you for supporting indie developers. Thank You & Enjoy! Nick Culbertson MobyPixel.com

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

Overdrive Synth4 screens
RRS Ivoks4 screens

Verdict

The call

The clearest difference is rating: Overdrive Synth at 4.9 against RRS Ivoks's 4.4. Overdrive Synth also leads on review sentiment (79% vs 63%). RRS Ivoks's advantage is update cadence (fortnightly vs monthly) and iOS requirement (10.0 vs 14.0). On price, ratings volume, ads and in-app purchases 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. Overdrive Synth sells 1 one-off in-app purchase and RRS Ivoks 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

Overdrive Synth holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 34 and 46 respectively. Written reviews point the same way: 79% of Overdrive Synth's written reviews are positive against 63% of RRS Ivoks's.

UpkeepUpdate frequency

Overdrive Synth ships an update monthly, RRS Ivoks fortnightly. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level
Overdrive Synth versus RRS Ivoks: the parameters behind the verdict, then further details
ParameterOverdrive SynthRRS Ivoks
PriceFreeFree
Rating4.9 (34 ratings) — better4.4 (46 ratings)
Positive reviews79.2% of reviews — better63.3% of reviews
Number of ratings3446 — better
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS14.010.0 — better
Further details — not scored
Size247 MB19 MB
Age rating4+4+
DeveloperMoby PixelRRS, OOO

Customer experience

Overdrive Synth

All ratings34 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews24 reviews
Positive79.2%
Neutral12.5%
Negative8.3%

RRS Ivoks

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

In-app purchases

1 purchases

Overdrive Synth

One-time1
  • Unlock Full Version$4.99
1 purchases

RRS Ivoks

One-time1
  • RRS Ivoks Unlimited$8.99

Questions

Is Overdrive Synth free?
Overdrive Synth is free to download, with in-app purchases available.
Is RRS Ivoks free?
RRS Ivoks is free to download, with in-app purchases available.
Which has better reviews, Overdrive Synth or RRS Ivoks?
Overdrive Synth is rated higher. Overdrive Synth averages 4.9 out of 5 from 34 ratings, while RRS Ivoks averages 4.4 from 46 ratings.
Do Overdrive Synth or RRS Ivoks have ads?
Neither Overdrive Synth nor RRS Ivoks shows ads.
Which is updated more often, Overdrive Synth or RRS Ivoks?
Overdrive Synth ships an update monthly, and RRS Ivoks fortnightly. Most recently, Overdrive Synth was updated on November 3, 2026 and RRS Ivoks on November 3, 2026.

Other comparisons