Rule of Three - Calculator app icon

Apps Like Rule of Three - Calculator for iPhone and iPad

by Tomas Parizek★ 0.00 ratingsUtilitiesFreeData updated 2026-09-21

Rule of Three - Calculator screenshots

Ranked alternatives

Showing 1–20 of 1,000 ranked alternatives.

  1. Calculator HD Pro Lite app icon

    Calculator HD Pro Lite

    Cider Software LLC

    Calculate with dual-line display and multi-line input

    A with dual-line display showing input and result. Supports multi-line equations and tap-to-move cursor. Saves calculation history with timestamps and labels. Allows emailing calculations and swiping to review previous entries.

    ★ 4.651,412 ratingsUtilitiesFreeData updated 2026-09-08
  2. Calculator₊ app icon

    Calculator₊

    Impala Studios B.V.

    Calculate, edit, and track equations

    Perform basic arithmetic operations including addition, subtraction, multiplication, and division. Access scientific functions for advanced calculations. Convert units between different measurement systems.

    ★ 4.71,729,318 ratingsUtilitiesFreeData updated 2026-09-08
  1. Big Button Calculator Pro Lite app icon

    Big Button Calculator Pro Lite

    Cider Software LLC

    Calculate with dual-line display and color themes

    Calculate with a dual-line display showing input and result simultaneously. Use percentage and backspace functions. Switch between 18 color themes. Enter multi-line equations. Automatically format scientific expressions.

    ★ 4.714,055 ratingsUtilitiesFreeData updated 2026-09-11
  2. Calculator HD Pro app icon

    Calculator HD Pro

    Cider Software LLC

    Calculate with dual-line display and multi-line input

    A with dual-line display showing input and result. Supports multi-line equations and tap-to-move cursor. Saves calculation history with timestamps and labels. Allows emailing calculations and swiping to review past entries.

    ★ 4.811,253 ratingsUtilities$9.99Data updated 2026-09-08
  3. Calculator Pro Lite app icon

    Calculator Pro Lite

    Cider Software LLC

    Customize themes and buttons

    Customize appearance with themes, button shapes, and colors. Choose from six layouts and control all visual elements. View input and result simultaneously on dual-line display. Adjust settings for precise calculations.

    ★ 4.63,075 ratingsUtilitiesFreeData updated 2026-09-08
  4. Calculator with History + app icon

    Calculator with History +

    Beijing Free Calculator Technology Co., Ltd.

    Calculate and track financial formulas

    Perform calculations a scientific featuring pi, exponents, square root, negative numbers, and logarithms. View calculation and adjust decimal places or use thousands separators. Customize keyboard colors and sounds.

    ★ 4.725,089 ratingsFinanceFreeData updated 2026-09-17
  5. Calculator Pro Elite app icon

    Calculator Pro Elite

    Cider Software LLC

    Design calculator interface as desired.

    The app offers a modern calculator with extensive customization options. Users can create custom themes, choose button shapes, and adjust visual elements.

    ★ 4.82,064 ratingsUtilities$9.99Data updated 2026-10-25
  6. Rule of Proportion PRO app icon

    Rule of Proportion PRO

    Glindemann, Sennoun, Langer GbR

    Calculate proportions with 3 variables

    Solve problems by entering three of four variables. Calculate using the of . Store calculations in a history log. Display detailed step-by-step solutions. Support for fractions and decimals. Allow entry of constants. No advertisements.

    ★ 5.03 ratingsEducation$1.99Data updated 2026-09-22
  7. Stash - Rule Based Proxy app icon

    Stash - Rule Based Proxy

    Stash Networks Limited

    Set rules, connect securely, manage proxies

    Manage network traffic with - routing for TCP, UDP, and ICMP protocols. Configure servers and apply rules on domain, IP-CIDR, or User-Agent. Support DNS over TCP, TLS, and HTTPS. Enable MitM, HTTP rewriting, and on-demand connections.

    ★ 4.41,255 ratingsUtilities$5.99Data updated 2026-11-04
  8. Top 3: Daily Focus Tasks app icon

    Top 3: Daily Focus Tasks

    Tomas Parizek

    On three per day

    Task manager limits users to three priority per day. Users can add, complete, and review . are visible only for the current day. No multi-day planning or endless lists. remains on immediate priorities.

    ★ 4.05 ratingsProductivityFreeData updated 2026-09-25
  9. Shadowrocket app icon

    Shadowrocket

    Shadow Launch Technology Limited

    Capture traffic, record requests, configure rules

    Capture and redirect HTTP/HTTPS/TCP traffic to a proxy server. Record and display HTTP, HTTPS, and DNS requests. Configure rules based on domain, IP range, or GeoIP. Track network usage and speed across different connections.

    ★ 4.512,280 ratingsUtilities$2.99Data updated 2026-11-04
  10. Three (Rule of 3 Calculator) app icon

    Three (Rule of 3 Calculator)

    Pericles Maravelakis

    Calculate anything with the rule of three.

    The app performs fast calculations using the rule of three. It offers a modern interface with options for displaying results, including thousands separators and decimal digits.

    ★ 5.02 ratingsUtilitiesFreeData updated 2026-10-18
  11. Big Button Calculator Pro app icon

    Big Button Calculator Pro

    Cider Software LLC

    Calculate with color and precision

    Calculate with a dual-line display showing input and result simultaneously. Use percentage and backspace functions. Choose from 18 color themes. Enter multi-line equations. Automatically format scientific expressions. Access via Split View.

    ★ 4.9469 ratingsUtilities$9.99Data updated 2026-09-11

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.