Plus42
Thomas Okken
4.9 ★
store rating
$9.99
AppRecs review analysis
AppRecs rating 4.4. Trustworthiness 68 out of 100. Review manipulation risk 26 out of 100. Based on a review sample analyzed.
★★★★☆
4.4
AppRecs Rating
Ratings breakdown
5 star
97%
4 star
1%
3 star
0%
2 star
0%
1 star
1%
What to know
✓
Low review manipulation risk
26% review manipulation risk
✓
High user satisfaction
97% of sampled ratings are 5 stars
✓
Authentic reviews
No red flags detected
About Plus42
Plus42 is an advanced scientific programmable calculator, based on Free42. Free42, in turn, is a complete re-implementation of the HP-42S scientific programmable RPN calculator, which was made from 1988 until 1995 by Hewlett-Packard. Free42 is a complete rewrite and contains no HP code whatsoever.
Plus42 builds on Free42 and adds: Algebraic expressions modeled after those used on the HP-27S and HP-17B/19B; attached units and unit conversions modeled after those used on the HP-48/49/50 series; directories for more organized storage of programs and variables; a larger display, with 8 rows and 22 columns (131x64 pixels) by default, which the user may resize at will; time value of money and amortization schedules; and two-dimensional plotting of functions, with ability to zoom and pan, and find integrals and roots from points in the plot.
Plus42 builds on Free42 and adds: Algebraic expressions modeled after those used on the HP-27S and HP-17B/19B; attached units and unit conversions modeled after those used on the HP-48/49/50 series; directories for more organized storage of programs and variables; a larger display, with 8 rows and 22 columns (131x64 pixels) by default, which the user may resize at will; time value of money and amortization schedules; and two-dimensional plotting of functions, with ability to zoom and pan, and find integrals and roots from points in the plot.
