Comparison

76477 Complex Sound Synth vs Beats By AyyDot

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

Head to head
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.

About

Beats By AyyDot

Discover and license exclusive music beats across various genres. Preview tracks with real-time waveforms, record vocals with studio effects, and jot down song ideas. Save favorites and track your listening history.

Highlights
  • Browse beats by genre
  • Real-time waveform visualization
  • Studio mode for vocal recording
  • Songwriting notes feature
  • In-app cart and checkout
  • Background playback
  • Dark and light mode support
Features
Read full description

Here's the formatted App Store description — cleaned up spacing, hierarchy, and bullet consistency throughout: Beats By AyyDot is the official app for browsing, previewing, and licensing exclusive beats produced by AyyDot and collaborators. Browse by genre — Trap & Rap, R&B, Pop, International, and Boom Bap — or hit Shuffle to discover something new. Every beat streams instantly with full transport controls, shuffle, and repeat modes built in. FEATURES Real-Time Waveform — See the actual stereo waveform extracted from each beat. Played portions fill with red as the track progresses. Drag to scrub to any point. Liquid Glass Design — A modern translucent UI following iOS 26's design language. Glass pill navigation bar with a draggable sliding indicator, floating mini player with album art, and smooth dark/light mode transitions. Studio Mode — Record vocals over any beat with up to two tracks. Autotune with key detection, compression, delay, and reverb in a vertical effects rack. Save projects, export mixes, and share. Songwriting — Tap Write from the expanded player to jot down lyrics, melodies, and ideas. Full transport controls built into the notes view so you never lose your flow. Cart & Checkout — Add beats to your cart, review your selections, and check out directly in-app. Cart badge shows your count at a glance. Favorites — Double-tap any beat to save it. Access your favorites list from the bottom navigation bar. Heard / Unheard Tracking — Beats you've listened to are automatically marked as heard and faded in the list. Search "unheard" to filter only fresh beats. Expanded Player — Tap the mini player to expand into a full-screen view with stacked title/artist, waveform scrubbing, BPM, pricing, shuffle, repeat, and quick access to Studio and Write. Background Playback — Keep listening while you use other apps. Full Now Playing and Lock Screen controls supported. Filter & Search — Search by name, filter by Original or Sample, and sort your way through hundreds of beats. Analytics — Play counts, genre breakdowns, and listening history tracked per user profile. Dark & Light Mode — Fully adaptive UI with a one-tap toggle. Every element is designed for both appearances. New beats are added regularly. Open the app, find your sound, and make it yours.

Screenshots

76477 Complex Sound Synth4 screens
Beats By AyyDot4 screens

Verdict

The call

The clearest difference is review sentiment: Beats By AyyDot at 100% against 76477 Complex Sound Synth's 50%. Beats By AyyDot also leads on price (Free vs $2.99) and rating (5.0 vs 3.9). 76477 Complex Sound Synth's advantage is ratings volume (9 vs 2) and iOS requirement (12.0 vs 18.2). On ads, in-app purchases 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

Beats By AyyDot is free to download; 76477 Complex Sound Synth costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Beats By AyyDot holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 9 and 2 respectively. Written reviews point the same way: 50% of 76477 Complex Sound Synth's written reviews are positive against 100% of Beats By AyyDot's.

UpkeepUpdate frequency

76477 Complex Sound Synth ships an update every 3 months, Beats By AyyDot every 2 weeks. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

Scorecard7 real differences · 3 level
76477 Complex Sound Synth versus Beats By AyyDot: the parameters behind the verdict, then further details
Parameter76477 Complex Sound SynthBeats By AyyDot
Price$2.99Free — better
Rating3.9 (9 ratings)5.0 (2 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings9 — better2
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better18.2
Further details — not scored
Size4 MB49 MB
Age rating4+12+
DeveloperBlack Cat SystemsAlex Fonseca

Customer experience

76477 Complex Sound Synth

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

Beats By AyyDot

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

76477 Complex Sound Synth

No in-app purchases

None

Beats By AyyDot

No in-app purchases

Questions

Is 76477 Complex Sound Synth free?
76477 Complex Sound Synth costs $2.99, with no in-app purchases.
Is Beats By AyyDot free?
Beats By AyyDot is free to download, with no in-app purchases.
Which has better reviews, 76477 Complex Sound Synth or Beats By AyyDot?
Beats By AyyDot is rated higher. 76477 Complex Sound Synth averages 3.9 out of 5 from 9 ratings, while Beats By AyyDot averages 5.0 from 2 ratings.
Do 76477 Complex Sound Synth or Beats By AyyDot have ads?
Neither 76477 Complex Sound Synth nor Beats By AyyDot shows ads.
Which is updated more often, 76477 Complex Sound Synth or Beats By AyyDot?
76477 Complex Sound Synth ships an update every 3 months, and Beats By AyyDot every 2 weeks. Most recently, 76477 Complex Sound Synth was updated on November 1, 2026 and Beats By AyyDot on November 5, 2026.

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