Comparison

Sinusoid vs 76477 Complex Sound Synth

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

Head to head
About

Sinusoid

Create music with a retro 8-bit inspired sound machine. Features 4 channels for tones and drums, with extensive sound sculpting options like filters, modulation, and effects. Export your creations and integrate with other music apps.

Highlights
  • 4 sound channels (3 tones, 1 drum/noise)
  • Extensive audio parameters (envelope, vibrato, glide, filter)
  • Ring modulation and FM synthesis
  • Arpeggiator, delay, and bit crusher effects
  • MIDI input and output support
  • Audiobus, IAA, and AUv3 integration
  • AIFF export and in-app music player
Features
Read full description

Sinusoid is a tracker/sequencer sound machine inspired by retro 8 bit game consoles. It has 4 sound channels where 3 play tones and 1 plays drums and noise. It has audio parameters like pan, amplitude envelope, vibrato, pitch glide, a resonant filter and second oscillator for ring modulation and fm. Further sculpt the sound with an arpeggiator, delay and bit crusher. Export songs to AIFF and listen to them in the in app music player or share them with other apps. MIDI can be used to control parameters, play and input notes. MIDI out makes it possible to play other synths with sinusoid using Core MIDI, Bluetooth, IAA MIDI or AUv3 MIDI. Connect to other sound apps using Audiobus, Inter App Audio or AUv3. +++ 3 tone channels: sinusoid, square, triangle, saw, pulse (75%, 50%, 25% or 12.5%) +++ 1 drum/noise channel +++ Stereo pan +++ Amplitude envelope (attack, length and release) +++ 2nd oscillator for fm and ring modulation +++ Vibrato +++ Pitch glide +++ Resonant filter +++ Arpeggio/stutter +++ Tape delay +++ Bit/samplerate crush +++ Per note ability to override all channel audio parameters +++ Copy/paste between devices on the same network +++ Save and share projects using “open with” and files app drag’n drop +++ Export to songs to AIFF +++ Core MIDI, Bluetooth, IAA MIDI, AUv3 MIDI +++ Audiobus, IAA and AUv3

About

76477 Complex Sound Synth

Create complex sound effects and music with a powerful synthesizer inspired by vintage hardware. Offers extensive modulation, noise generation, and customizable envelopes. Easily share your creations and control it with MIDI devices.

Highlights
  • Three oscillators with multiple wave types
  • Modulation capabilities for oscillators
  • Adjustable noise generator with filter
  • Configurable ADSR envelope
  • Unlimited sound effect generator boards
  • MIDI input support
  • Export/import sound effect boards
Features
Read full description

Synth 76477 is a powerful sound effects generator and synthesizer app, inspired by the famous SN76477 integrated circuit from the 1970s, but containing many enhancements. Features: • Three oscillators, each of which can produce a sine, triangle, sawtooth, or square wave • The outputs of two of the oscillators can be used to modulate the main oscillator • Frequency modulation can be linear or octave based • The duty cycle of the main oscillator can be adjusted in square wave mode • Noise generator, either analog or digital, with an adjustable low pass filter • Oscillator outputs can be mixed to the audio output • Fully configurable ADSR (Attack / Decay / Sustain / Release) envelope, linear or exponential • One shot mode available • Unlimited number of sound effect generator boards • User configurable array of sound effect generator buttons on each board, up to 50 on the iPhone and 150 on the iPad • Boards as well as individual generators can be exported and imported, and transferred to and from your computer via iTunes file sharing, making it easy to share with others Synth 76477 comes with a full set of sample sound generators, making it easy to understand how to use and configure them, and tap the full power of the app. Synth 76477 works with MIDI input devices (keyboards and controllers) in several interesting ways: If you plug a MIDI device into an iPad (via the USB Camera Connection Kit), Synth 76477 will automatically use it. You can plug several MIDI controllers in via a powered HUB, and Synth 76477 will use all of them. You can also use MIDI controllers over WiFi. Midi controllers can be used to trigger chip playback, or set the VCO frequency and volume. They can also be used in the chip editor to adjust the various settings. The app also supports Bluetooth audio devices. Visit the support page for step by step instructions on how to use the app: http://www.blackcatsystems.com/ipad/complex_sound_synthesizer_FAQ.html Buy your copy right now, and start generating your own sound effects in minutes.

Screenshots

Sinusoid4 screens
76477 Complex Sound Synth4 screens

Verdict

The call

The clearest difference is rating: Sinusoid at 4.9 against 76477 Complex Sound Synth's 3.9. Sinusoid also leads on review sentiment (69% vs 50%) and iOS requirement (9.0 vs 12.0). 76477 Complex Sound Synth's advantage is price ($2.99 vs $4.99). On ratings volume, update cadence, 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

Sinusoid costs $4.99 and 76477 Complex Sound Synth $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Sinusoid holds the better App Store score, 4.9 against 3.9. Both are backed by a comparable volume of ratings — 13 and 9 respectively. Written reviews point the same way: 69% of Sinusoid's written reviews are positive against 50% of 76477 Complex Sound Synth's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 1, 2026.

Scorecard4 real differences · 6 level
Sinusoid versus 76477 Complex Sound Synth: the parameters behind the verdict, then further details
ParameterSinusoid76477 Complex Sound Synth
Price$4.99$2.99 — better
Rating4.9 (13 ratings) — better3.9 (9 ratings)
Positive reviews68.8% of reviews — better50.0% of reviews
Number of ratings13 — better9
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better12.0
Further details — not scored
Size7 MB4 MB
Age rating4+4+
DeveloperErik SigthBlack Cat Systems

Customer experience

Sinusoid

All ratings13 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews32 reviews
Positive68.8%
Neutral18.8%
Negative12.5%

76477 Complex Sound Synth

All ratings10 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews10 reviews
Positive50.0%
Neutral30.0%
Negative20.0%

In-app purchases

None

Sinusoid

No in-app purchases

None

76477 Complex Sound Synth

No in-app purchases

Questions

Is Sinusoid free?
Sinusoid costs $4.99, with no in-app purchases.
Is 76477 Complex Sound Synth free?
76477 Complex Sound Synth costs $2.99, with no in-app purchases.
Which has better reviews, Sinusoid or 76477 Complex Sound Synth?
Sinusoid is rated higher. Sinusoid averages 4.9 out of 5 from 13 ratings, while 76477 Complex Sound Synth averages 3.9 from 9 ratings.
Do Sinusoid or 76477 Complex Sound Synth have ads?
Neither Sinusoid nor 76477 Complex Sound Synth shows ads.
Which is updated more often, Sinusoid or 76477 Complex Sound Synth?
Sinusoid ships an update every 3 months, and 76477 Complex Sound Synth every 3 months. Most recently, Sinusoid was updated on November 1, 2026 and 76477 Complex Sound Synth on November 1, 2026.

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