Getting Started
A geotechnical field companion for plotting grain-size distributions, calculating gradation coefficients, and organizing repeatable soil-classification work.
Support
Gradalith Support
Help and product information for Gradalith.
Included Tools
- Sieve curve and gradation metrics
- USCS-oriented classification workflow
- Forty bundled soil-reference plates
Common Questions
Does the app need an account or subscription?
No. It is a one-time-purchase app with no account, advertising, analytics, or in-app purchase.
Does it work offline?
Core features and bundled reference data work on device without a developer-operated service.
Where is my information stored?
Your sample inputs, saved classifications, comparison choices, and display preferences remain in the app's local storage.
How do I remove local data?
Use available delete or reset controls. Removing the app removes its local container, subject to backups you control through Apple.
What are the limits?
Classifications are field and study aids, not a stamped geotechnical opinion. Follow project specifications, laboratory procedures, and qualified engineering review.
Contact
Email support@shadowfetch.com with the app name, device model, iOS version, and a concise description of the issue.