4n6 Tools Lite
Forensic calculators
Free · Designed for iPad. Not verified for macOS.
Seven forensic medicine tools that work fully, and a preview of every Pro tool. Light and dark mode. Offline, on-device, in 10 languages.
4n6 Tools Lite is the basic edition of 4n6 Tools Pro, professional calculators for forensic medicine built from everyday autopsy and external-examination practice. Seven tools work fully in Lite. You can open all the others as a preview and see what the full version offers.
FULLY WORKING IN LITE
• Henssge rectal-temperature nomogram: time since death with a 95 % interval, the date and time of death and a timeline
• Post-mortem interval from vitreous potassium: four published methods
• Traub index (glucose + lactate): ante-mortem glycaemia
• 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
PREVIEW OF THE PRO TOOLS
Tools marked Pro can be opened and browsed in Lite: the form, the method and the references. Lite does not calculate their results. Calculation, comparison and export are offered by the separate app 4n6 Tools Pro.
THE FULL PRO VERSION
4n6 Tools Pro unlocks all 27 tools: post-mortem changes, forensic entomology, post-mortem toxicology (interpretation of ethanol and 67 substances against published reference levels), burns, blood groups and stains, skeletal sex and age, DVI, forensic odontology, photogrammetry, colorimeter, desmin immunohistochemistry and microscopy, plus a shared case report and case backup. A one-time purchase, no subscription.
FEATURES
• Light and dark mode
• Results with an interval scale
• Ten languages: Slovak, English, Czech, German, Italian, French, Ukrainian, Polish, Hungarian and Chinese (Simplified)
• Works offline, entirely on-device: sends nothing and collects nothing
• Methods and references with every tool
• Adjustable text size, including Dynamic Type
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
- This app hasn’t received enough ratings or reviews to display an overview.
• Three new languages: Polish, Hungarian and Chinese (Simplified). The app now speaks ten languages.
• The appearance themes Coloured glass and Black and gold are now part of 4n6 Tools Pro; Lite uses the Laboratory instrument theme in light and dark.
• Minor text refinements.
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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jan Sikuta
- Size
- 6.1 MB
- Category
- Medical
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 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.
- iPhone
- Languages
English and 9 more
- English, Czech, French, German, Hungarian, Italian, Polish, Simplified Chinese, Slovak, Ukrainian
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Alcohol, Tobacco, Drug Use or References
- Copyright
- © 2026, Ján Šikuta