Number input/output now respects your device's locale – decimal and grouping separators (e.g. "1.234,56" vs "1,234.56") are parsed and displayed correctly instead of always assuming US-style commas.
Fixed duplicate unit symbols: $\text{Dyne/cm}^2$ and cm/min were silently reusing another unit's symbol ($\text{gm/cm}^2$ and cm/s respectively); Minute and Day now show "min"/"day" instead of clashing single-letter symbols.
The "value below absolute zero" error now applies to every temperature unit (Celsius, Fahrenheit, Rankine), not just Kelvin.
System back button on the Settings screen now returns to the converter instead of exiting the app.
Added Fortnight as a Time unit.
Unit tooltip now opens on a single tap (and taps again to dismiss) instead of requiring a long press; intro tip text updated to match.