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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

OCT 2009: 1OCT 2010: 1MAR 2011: 1AUG 2012: 1OCT 2012: 1JUN 2013: 1FEB 2014: 1AUG 2016: 1DEC 2016: 1MAR 2017: 1FEB 2019: 1MAY 2020: 1AUG 2020: 1OCT 2021: 1DEC 2021: 1JAN 2022: 1FEB 2022: 1MAY 2022: 1JUN 2022: 1JUL 2022: 1OCT 2022: 1DEC 2022: 1SEP 2023: 1MAR 2024: 1APR 2024: 1MAY 2024: 1JUL 2024: 1SEP 2024: 1OCT 2024: 1MAR 2025: 1JUL 2025: 1MAR 2026: 2MAY 2026: 1AUG 2026: 4SEP 2026: 5
OCT 2009SEP 2026

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 · 2 hand-coded · 18 unlabelled

Operator · 5 hobby · 1 indie · 4 commercial · 1 enterprise · 6 open source · 3 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01hesap-makinesi0★19 days—hand-codedhobbyDesktop calculator app offering standard, scientific, and programmer modes with memory, trigonometry, and bitwise operations.
  2. 02flutter-calculator-app0★19 days—hobbyMobile calculator app that handles basic arithmetic, percentages, decimals, operator precedence and supports dark and light themes.
  3. 03calc-note0★12 days—hobbyWeb app for calculation notebooks that combines text and computation cells with numerical, symbolic, and unit-aware math.
  4. 04CalcLab: Smart Unit Converter0★1 moliveindieAll-in-one calculator and unit converter app with photo-based problem solving and handwritten calculation support.
  5. 05react-native-calculator0★8 days—hobbyA mobile calculator app that offers standard and scientific modes, calculation history, memory functions, and theme customization.
  6. 06DayCalc - Note Calculator0★12 dayslivecommercialCalculator app with standard and scientific modes, note-taking calculation history, and over 600 unit and currency conversions.
  7. 07oddly-calculator0★29 days—hand-codedhobbyA calculator app for iOS devices that provides personality modes, collectible discoveries, and a local history of recent calculations.
  8. 08Construction-Calculator0★1 mo—An Android calculator for construction that computes hypotenuse, feet-inch arithmetic, material volume, and tonnage estimates.
  9. 09NerdCalci0★1 moliveopen sourceAn advanced calculator app with variables, unit conversions, and file-based calculation sessions.
  10. 10Calculator₊0★24 daysliveenterpriseMobile calculator app providing standard and scientific functions, unit and currency conversion, calculation history, and AI-powered photo math solving.
  11. 11calculator-flutter0★1 mo—A scientific calculator app that provides standard and advanced mathematical functions for everyday calculations.
  12. 12CalcYou0★2 moliveopen sourceCalculator app offering basic and scientific calculation, unit conversion, mathematical symbol input, and function plotting.
  13. 13S07-26-Team-380★1 mo—A calculator app for physics flow calculations.
  14. 14jrpn160★1 moliveopen sourceCalculator app that simulates an HP 16C programmer's calculator, including its seven-segment display and behavior, for programmers.
  15. 15ABCalc Plus0★3 moliveopen sourceProgrammable calculator app for evaluating complex expressions with multi-format results, persistent history, unlimited memory, and unit conversion.
  16. 16Time Calculator - Work Hours0★3 molivecommercialAll-in-one time calculator app for adding, subtracting, and converting time units, dates, and shifts.
  17. 17Pebbles0★4 moliveopen sourceCalculator app offering scientific, programmer, calculus, statistics, graphing, and date modes plus unit conversion for students and professionals.
  18. 18ClevCalc - Calculator0★17 dayslivecommercialMobile app that provides a calculator and converters for units, currency, percentages, discounts, loans, dates, and health metrics.
  19. 19Graph 890★9 mostaleliveopen sourceEmulator app that runs TI graphing calculator models on Android devices, letting users perform math without physical hardware.
  20. 20Calcularium0★9 mostalelivecommercialCalculator app with real-time calculation, unit conversion, currency exchange rates, and programming functions for everyday calculations.

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.