Use
Project / reference is optional on calculator screens. Previous project names are suggested as you type, and the reference is stored with the next calculation.
Options
History can be grouped by date or project. Select entries to total weight-capable records, share as text or PDF, add/edit notes, and delete selected entries or all history.
Stored data
Saved results retain the values, units and localized result text recorded when the calculation was made; changing settings later does not rewrite old entries.