Comparison

iVCS3 vs Limiter

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

Head to head
About

iVCS3

This application emulates the iconic EMS VCS3 synthesizer, a pioneering portable synthesizer from 1969. It recreates the original's unique sound generation capabilities, including its oscillators, filters, and patch matrix, allowing users to explore its distinctive sonic palette.

Highlights
  • Official EMS VCS3 emulation
  • Three oscillators (2 VCOs, 1 LFO)
  • Noise generator
  • Voltage controlled low pass filter (VCF)
  • Patch board matrix
  • Joy-stick controller
  • Voltage controlled spring reverb
Features
Read full description

iVCS3 Official EMS VCS3 emulator The VCS3 was created in 1969 by Peter Zinovieff's EMS company. The electronics were largely designed by David Cockerell and the machine's distinctive visual appearance was the work of electronic composer Tristram Cary. The VCS3 was more or less the first portable commercially available synthesizer—portable in the sense that the VCS 3 was housed entirely in a small, wooden case. The VCS3 was quite popular among progressive rock bands and was used on recordings by The Alan Parsons Project, Jean Michel Jarre, Hawkwind, Brian Eno (with Roxy Music), King Crimson, The Who, Gong, and Pink Floyd, among many others. Well-known examples of its use are on The Who track "Won't Get Fooled Again" (as an external sound processor, in this case with Pete Townshend running the signal of a Lowrey Organ through the VCS3's filter and low frequency oscillators) on Who's Next. Pink Floyd's "On the Run" (from The Dark Side of the Moon) made use of its oscillators, filter and noise generator, as well as the sequencer. Their song Welcome to the Machine also used the VCS3. The bassy throb at the beginning of the recording formed the foundation of the song, with the other parts being recorded in response. The VCS3 was also a staple at the BBC’s Radiophonic Workshop, and was a regular (and most frightening) sound generator for the Dr Who TV series. Many fo the monsters and atmoshere;s created for the show came directly from the VCS3. Description The VCS3 has three oscillators (in reality, the first 2 oscillators are normal oscillators and the 3rd an LFO or Low Frequency Oscillator), a noise generator, two input amplifiers, a ring modulator, a 18dB/octave (pre-1974) or 24dB/octave (after 1974) voltage controlled low pass filter (VCF), a trapezoid envelope generator, joy-stick controller, voltage controlled spring reverb unit and 2 stereo output amplifiers. Unlike most modular synthesizer systems which use cables to link components together, the VCS3 uses a distinctive patch board matrix into which pins are inserted in order to connect its components together. Keyboards controller DK1 keyboard controller Although the VCS3 is often used for generating sound effects due to lack of built-in keyboard, there were external keyboard controllers for melodic play. The DK1 in 1969 was an early velocity sensitive monophonic keyboard for VCS3 with an extra VCO and VCA. Later it was extended for duophonic play, as DK2, in 1972. Also in 1972, Synthi AKS was released, and its digital sequencer with a touch-sensitive flat keyboard, KS sequencer, and its mechanical keyboard version, DKS, were also released. (See: en.wikipedia.org/wiki/VCS3)

About

Limiter

This app provides advanced audio processing for complete volume control. It functions as a brickwall peak limiter and includes a standalone sampler. Offers extensive dynamic processing, from subtle attenuation to distortion.

Highlights
  • AudioUnit V3, Audiobus, Inter-App Audio support
  • Brickwall Limiter
  • Live Normalizer
  • Built-in Stereo Sampler
  • Control Manager LFO
  • MIDI controllers
  • Presets Morphing Pad
Features
Currently charting
Read full description

Audiobus and Inter-App Audio Effect. A brickwall peak limiting app, for the complete control of your audio volume. New Sampler! Now you can use the app as a standalone. The Amazing Noises Limiter it has a wide range of dynamic processing: from very gentle volume attenuation to heavy distortion (if you want it!). Main Features: + AudioUnit V3, Audiobus and Inter-App Audio support + Brickwall Limiter + Live Normalizer + Built In Stereo Sampler with varispeed + Control Manager LFO for Parameters + Midibus, Virtual Midi and Network: 14 bit NRPN controllers + Snapshots Presets Morphing Pad

Screenshots

iVCS34 screens
Limiter4 screens

Verdict

The call

The clearest difference is price: Limiter at $2.99 against iVCS3's $19.99. Limiter also leads on in-app purchases (none vs 10) and chart position (#141 vs unranked). iVCS3's advantage is rating (4.9 vs 4.4) and review sentiment (91% vs 58%). On ads, device support and iOS requirement 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

iVCS3 costs $19.99 and Limiter $2.99 up front. iVCS3 sells 10 one-off in-app purchases. Limiter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iVCS3 holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: iVCS3 has 206 ratings behind it against 29, so its average is the more settled of the two. Written reviews point the same way: 91% of iVCS3's written reviews are positive against 58% of Limiter's.

UpkeepUpdate frequency

iVCS3 ships an update every 2 months, Limiter every 5 months. The most recent releases landed on September 26, 2026 and September 23, 2026 respectively.

Scorecard8 real differences · 3 level
iVCS3 versus Limiter: the parameters behind the verdict, then further details
ParameteriVCS3Limiter
Price$19.99$2.99 — better
Rating4.9 (206 ratings) — better4.4 (29 ratings)
Positive reviews90.6% of reviews — better58.3% of reviews
Number of ratings206 — better29
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#141 — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size107 MB9 MB
Age rating4+4+
DeveloperapeSoftAmazing Noises

Customer experience

iVCS3

All ratings206 ratings
Positive96.6%
Neutral1.5%
Negative1.9%
Written reviews192 reviews
Positive90.6%
Neutral2.6%
Negative6.8%

Limiter

All ratings29 ratings
Positive82.8%
Neutral3.4%
Negative13.8%
Written reviews24 reviews
Positive58.3%
Neutral4.2%
Negative37.5%

Bugs and requests

iVCS3

Reported bugs

3 issues
  • Presets not loading
  • Crashes on iOS 15.04
  • Sampler not functioning properly

Requested features

3 requests
  • Mac compatibility
  • Improved preset management
  • Expanded sampling capabilities

Limiter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

iVCS3

One-time10
  • Red Sky Lullaby - 180 PresetsFree
  • Singe Difficile by RUST(i)KFree
  • RUMBLEFree
Show 7 more
  • OLD GRIT - COLLECTIONFree
  • JEC 2018 Iconic PinkFloydFree
  • JEC EMS-50Free
  • SINAPSYA - Under The Dust$2.99
  • LALA - Sonic Pleasures$3.99
  • JEC Mega Bank$4.99
  • Essential EMS Modifications$6.99
None

Limiter

No in-app purchases

Questions

Is iVCS3 free?
iVCS3 costs $19.99, and also offers in-app purchases.
Is Limiter free?
Limiter costs $2.99, with no in-app purchases.
Which has better reviews, iVCS3 or Limiter?
iVCS3 is rated higher. iVCS3 averages 4.9 out of 5 from 206 ratings, while Limiter averages 4.4 from 29 ratings.
Do iVCS3 or Limiter have ads?
Neither iVCS3 nor Limiter shows ads.
Which is updated more often, iVCS3 or Limiter?
iVCS3 ships an update every 2 months, and Limiter every 5 months. Most recently, iVCS3 was updated on September 26, 2026 and Limiter on September 23, 2026.

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