Clack Lab: Keyboard Analyzer

Mechanical Sound Analysis

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Measure mechanical keyboard sound, score the thock, and compare mods with your iPhone microphone. Clack Lab is a mechanical keyboard sound analyzer for enthusiasts who want to measure, compare, and improve their builds. Record a repeatable typing test with your iPhone microphone, then compare thock, clack, resonance, decay, and consistency before and after mods. Use the microphone to measure keystroke sound, score the thock, and compare keyboard builds before and after mods like foam, tape, switch changes, lubrication, and O-rings. Features: - Live keyboard sound analysis from the iPhone microphone - Per-session Thock, Clarity, and Consistency scores - Character classification for thocky, marbly, clacky, and clicky builds - Frequency centroid, decay time, level, and high-frequency ratio metrics - Saved sessions for keyboards, switches, and build notes - Side-by-side comparison tools with Clack Lab Pro Clack Lab is designed for hobbyist keyboard tuning and comparison. Results depend on room noise, phone placement, keyboard position, and typing consistency.

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Bugfixes and improved screenshots

The developer, Jan Sokol, 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.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    Jan Sokol
    Size
    2 MB
    Category
    Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 14 more
    • English, Czech, Dutch, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, Turkish
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Jan Sokol