Zappu! - Retro Game SFX Maker
Retro game SFX in seconds
Only for Mac
Free · In‑App Purchases
Mac
Press a preset, get a retro game sound effect. Tweak it, export WAV. Ask Apple Intelligence in plain words, or let Claude Code and Codex make sounds over MCP.
Zappu makes retro game sound effects in seconds. Coins, lasers, explosions, jumps, confirm and cancel sounds, notification chimes: the sounds your game or app needs, one click away.
■ Generate with one click
18 presets (Pickup/Coin, Laser/Shoot, Explosion, Powerup, Hit/Hurt, Jump, Click, Blip/Select, Synth, Tone, Confirm, Cancel, Warp, Zap, Footstep, Splash, Chime, Random). Every click is a little different, and Mutate makes variations of a sound you like.
■ Shape every detail
Envelope, frequency slides, vibrato, arpeggio, duty cycle, retrigger, flanger, low-pass and high-pass filters, plus triangle and pink-noise waveforms, bit crush, harmonics, tremolo, multi-step arpeggios, envelope curves and compression. Every slider explains itself.
■ Ask AI (macOS 27 or later)
Type "a chiptune explosion for when an enemy dies" and Apple Intelligence picks the preset and dials it in. You can edit the open sound in plain words too. Processing happens on device or on Private Cloud Compute.
■ History and favorites
Everything you make is kept in History. Name it, star it, search it by name. Undo and Redo work per sound.
■ Export
WAV (44.1k / 22k / 11k / 8k, 8 or 16-bit) and JSON. JSON files can be imported and edited again.
■ Your coding agent, on sound duty
The bundled zappu command generates and exports sounds from the terminal, and doubles as an MCP server. Register it with Claude Code or Codex and ask for "a confirm sound": it lands straight in your library.
Requires macOS 26 or later. AI features require macOS 27 or later with Apple Intelligence.
Zappu's synthesizer is based on jsfxr / sfxr.
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The developer, gigi-net.net, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
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Information
- Seller
- Kohki Miki
- Size
- 3.2 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 26.0 or later.
- Mac
Requires macOS 26.0 or later.
- Mac
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Buy the developer a beer $2.99
- Copyright
- © 2026 giginet
