4n6 Tools Lite

Forensic calculators

Free · Designed for iPad. Not verified for macOS.

The free edition of 4n6 Tools Pro: Henssge, vitreous K⁺, BMI, BSA & heart weight, aortic age and unit converter. Fully offline, SK & EN. Pro unlocks the rest. 4n6 Tools Lite is the free edition of 4n6 Tools Pro — professional forensic calculators for forensic medicine, built from everyday autopsy and external-examination practice. Try six fully working tools and see whether the app fits your workflow. FREE IN LITE • Henssge rectal-temperature nomogram (Marshall–Hoare) — time of death • Postmortem interval from vitreous potassium (K⁺) • BMI and nutritional status • Body surface area (BSA) and expected heart weight • Age from aortic circumferences • Unit converter (mg/dL ↔ mmol/L and more) for common analytes or a custom molar mass THE FULL PRO VERSION 4n6 Tools Pro unlocks every tool: postmortem changes and the Traube index, toxicology and alcohol (ethanol interpretation and calculations, drinking scenario, breath alcohol, PAL reference drug levels), forensic entomology, anthropology and skeletal identification, forensic odontology (odontogram, Lamendin, Solheim), photogrammetry with native LiDAR measuring, volumetric weight estimation, colorimeter, desmin immunohistochemistry and microscopy. A one-time purchase with no subscription — every purchase supports further development. FEATURES • Bilingual: Slovak and English • Works offline, entirely on-device — sends nothing and stores nothing • Methods and references with every tool, plus a unified reference list FOR WHOM Physicians and specialists in forensic medicine and pathology, examining physicians, expert witnesses and — for teaching — medical students. IMPORTANT All results are orientational and based on published methods. The app is not a medical device and does not replace the professional judgement of the examining physician or expert.

Ratings & Reviews

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• The app now opens in your device language: Slovak on Slovak and Czech devices, English everywhere else. You can still switch between SK and EN at any time with the button in the top right corner, and your choice is remembered. • Slovak is now listed among the languages the app supports. • Minor fixes and polish. Thank you for using 4n6 Tools Lite — your support keeps the app growing.

Version 4.2

The developer, Jan Sikuta, 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

    Accessibility

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

    Information

    Seller
    • Jan Sikuta
    Size
    • 1.2 MB
    Category
    • Medical
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English and Slovak
    Age Rating
    13+
    • 13+
    • Learn More
    • Infrequent
      Medical Treatment information
      Alcohol, Tobacco, Drug Use or References
    Copyright
    • © 2026, Ján Šikuta
  • Developer Website
  • Privacy Policy

    • More by Jan Sikuta