iVCS3 vs SquareSynth 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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)
SquareSynth 2
Create 8-bit style music with this professional chiptune synthesizer. It offers versatile sound design inspired by classic consoles and integrates with modern music production tools.
- 8-bit style synthesizer
- NES and Commodore 64 inspired
- Audio Unit (AUv3) support
- Audiobus support
- 8 multitimbral channels
- Looping sound recorder with .wav sharing
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SquareSynth is an 8bit style synthesizer. It takes features from the NES console, and the Commodore 64 personal computer. It is a versatile, pro-quality chiptune music maker. Easily integrates with Audio Unit (AUv3) hosts to create a complete song writing solution. If you would like to experiment with lofi sounds and textures with modern features, look no farther. Features: ▷ Audiobus support. ▷ Audio Unit Version 3 support. ▷ 8 multitimbral channels (5 voices each), accessible via MIDI. ▷ Each voice contains 4 waveforms (Pulse, 4-bit Triangle, Short Noise, Long Noise). ▷ Classic 8bit arcade video game sounds (blorp). ▷ Multi-mode Filter. ▷ Looping sound recorder, with .wav file sharing.
Screenshots
Verdict
The clearest difference is price: SquareSynth 2 at $9.99 against iVCS3's $19.99. SquareSynth 2 also leads on in-app purchases (none vs 10) and update cadence (monthly vs every 2 months). iVCS3's advantage is rating (4.9 vs 4.1) and review sentiment (91% vs 63%). On 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
iVCS3 costs $19.99 and SquareSynth 2 $9.99 up front. iVCS3 sells 10 one-off in-app purchases. SquareSynth 2 asks for nothing beyond the download.
iVCS3 holds the better App Store score, 4.9 against 4.1. That said, the two scores are not equally well evidenced: iVCS3 has 206 ratings behind it against 37, 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 63% of SquareSynth 2's.
iVCS3 ships an update every 2 months, SquareSynth 2 monthly. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.
| Parameter | iVCS3 | SquareSynth 2 |
|---|---|---|
| Price | $19.99 | $9.99 — better |
| Rating | 4.9 (206 ratings) — better | 4.1 (37 ratings) |
| Positive reviews | 90.6% of reviews — better | 62.5% of reviews |
| Number of ratings | 206 — better | 37 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 107 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | apeSoft | James Navarro |
Customer experience
iVCS3
SquareSynth 2
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
SquareSynth 2
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iVCS3
- Red Sky Lullaby - 180 PresetsFree
- Singe Difficile by RUST(i)KFree
- RUMBLEFree
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- 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
SquareSynth 2
No in-app purchases









