Notify Sound vs Superhuman

Tagline

Design and customize royalty-free notification sounds, alerts, and UI tones in your browser or with an AI assistant

The fastest email experience, now with AI

Category

Pricing

Rating

Platforms

API

Open source

Description

Notify Sound is a browser-based notification sound maker and editor that synthesizes audio from scratch using oscillators and noise instead of samples. Users can stack sound layers, adjust pitch and decay sliders, apply audio effects, or connect an AI assistant via its MCP server to generate and edit custom alerts, game effects, and UI clicks.

Superhuman uses AI to triage, summarize, and draft replies at keyboard speed.

Key features

• Multi-layer sound synthesis
• Oscillator and noise generation
• Pitch, attack, decay, hold, and ring out controls
• Audio effects including Reverb, Chamber, Echo, Chorus, and Crunch
• MCP server integration for AI assistants
• No-account browser-based editor
• Local browser saving
• MP3 download format

• Token-aware generation
• Component variants
• Auto-layout

Pros

• The audio engine synthesizes every sound from scratch using oscillators and noise with no pre-recorded samples.
• The editor is free to use directly in any modern web browser without requiring any installation.
• Users do not need to register or create an account to open the editor and design sounds.
• Sounds are shared under the CC BY 4.0 license, making them free for both personal and commercial use with attribution.
• Functions as an MCP server, allowing AI assistants like Claude, ChatGPT, Cursor, and VS Code to design sounds.
• Enables granular sound shaping through independent sliders for pitch, slide, attack, decay, ring out, and wave shapes.
• Sounds are saved locally inside the user's browser, ensuring data privacy as creators' sounds are not uploaded to the servers.
• Shared links embed sound configurations in the URL hash, which browsers do not transmit to the host servers.
• Offers multiple master effects like Reverb, Chamber, Echo, Ping-Pong, Chorus, Phone, and Crunch to place sounds in space.

• Fastest keyboard-driven email
• AI-drafted replies
• Snippets and templates
• Send later and follow-up reminders
• Read receipts
• Split inbox
• Instant global search
• Polished, distraction-free UI

Cons

• Users must credit Notify Sound and link back to the site to comply with the CC BY 4.0 license for commercial projects.
• Some features on the platform may be marked as 'Pro' and subject to extra terms.
• Downloads are restricted only to the MP3 file format; other formats like WAV are not listed as options.
• Saved sounds stay in the user's browser storage, meaning clearing browser data could result in losing saved progress.
• No offline native desktop or mobile applications are mentioned; it requires a browser connection.
• Does not support uploading or editing custom audio recordings or external audio samples.

• Expensive at $30/month
• Gmail and Outlook only
• Steep shortcut learning curve
• Requires onboarding call
• No family plan
• Limited mobile customization
• AI is a separate add-on cost
• Overkill for casual email users

Pricing plans

• StarterUSD25/month
  • • Superhuman AI
  • • Email Productivity
  • • Calendaring & Scheduling
  • • Support & Training
• BusinessUSD33/month
  • • Team Collaboration
  • • For Sales
  • • Team Administration
  • • Security
• Enterprise—
  • • All-in Enterprise Pricing
  • • Custom Compliance Needs
  • • Google Advanced Protection
  • • Advanced Admin Controls
• FreeUSD0
  • • AI chat unlimited while in beta
  • • Correctness suggestions
  • • Tone detection
  • • Limited prompts
• ProUSD12/month
  • • Unlimited AI chat
  • • Inline suggestions
  • • Paragraph translation in 17 languages
  • • Paragraph rewrites in 24 languages
• BusinessUSD33/month
  • • Everything included in Pro, plus:
  • • Ask AI
  • • Write with AI (voice and tone match)
  • • Team collaboration
• Enterprise—
  • • Everything included in Business, plus:
  • • Advanced security and admin controls
  • • Custom roles and permissions
  • • Dedicated support team

Website