CLUSTER CALCULATOR-SCIENTIFIC-FUNCTIONS · 43 ENTRIES · EARLIEST ENTRY 2010-10-22
Multi-function calculator apps
This cluster comprises calculator apps that extend beyond basic arithmetic with unit conversion, scientific functions, and specialized modes such as programmer, graphing, or physical-unit handling. Dated entries prior to the index start show a sporadic distribution, with occasional single entries from 2009 onward and a slight increase in frequency from 2020 to 2026, but no consistent trend. The traction leaders, CalcLab: Smart Unit Converter, calculator-flutter, and DayCalc - Note Calculator, each have zero stars, indicating minimal user engagement.
Entry timeline
ENTRY TIMELINE
Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.
Members by activity
Activity signals, not revenue.
Build origin · 3 hand-coded
Operator · 3 open source
Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 3 listed below. Unlabelled means nothing has decided yet — not that the answer is small.
- 41Fourth Tools0★4 yrabandonedlivehand-codedopen sourceAndroid utility app that provides a calculator, timer, stopwatch, and temporary file hosting in one tool.
- 42dahliaOS Calculator0★4 yrabandonedlivehand-codedopen sourceBasic system calculator app that provides arithmetic and scientific functions like pi, e, and trigonometric operations.
- 43Mather0★9 yrabandonedlivehand-codedopen sourceMobile calculator app that evaluates complex math expressions and supports variables, custom functions, unit conversions, complex numbers, and matrix operations.
Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.