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AcousPlan

Free cloud-based architectural acoustic design platform. Calculate RT60, STI, C80 per ISO 3382 with a 5,678-material database. Browser-based auralization, WELL/LEED compliance reports, and AI treatment recommendations. No desktop install — works in any browser. 27 languages.

RT60 acoustic simulation with real-time compliance checking against ISO 3382, WELL v2, and BS 8233
5,678-material database with octave-band absorption coefficients from 115 global brands
+4
Developer API portal with interactive documentation, code examples, and API key management

Cost / License

  • Freemium (Subscription)
  • Proprietary

Platforms

  • Online  Works in any modern browser. No plugins or downloads required.
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AcousPlan information

  • Developed by

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  • Licensing

    Proprietary and Freemium product.

  • Pricing

    Subscription that costs up to $69 per month + free version with limited functionality.

  • Alternatives

    4 alternatives listed

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  • Supported Languages

    • English
    • German
    • French
    • Spanish
    • Arabic
    • Japanese
    • Chinese
    • Korean
    • Portuguese
    • Dutch
    • Italian

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What is AcousPlan?

AcousPlan is the first free cloud-based architectural acoustic design and simulation platform. It calculates reverberation time (RT60), Speech Transmission Index (STI), Clarity (C80), and Early Decay Time (EDT) per ISO 3382 — all in your browser with no software to install.

Features include a 5,678-material database with tested absorption coefficients from 115 brands, browser-based auralization ("listen to your room" before it's built), AI-powered treatment recommendations, and automated compliance reports for WELL v2, LEED v4.1, BS 8233, DIN 18041, and ANSI S12.60.

Designed for architects, acoustic consultants, and interior designers who need acoustic analysis without the complexity and cost of traditional desktop tools like ODEON or EASE. Supports 27 languages including RTL.

Free tier includes full simulation and material database access. Professional ($29/mo) adds reports, auralization, and API access. Studio ($69/mo) adds batch simulation and white-label reports.