Apps Like BoltCalcSimple for iPhone and iPad
Ranked alternatives
Showing 21–40 of 1,000 ranked alternatives.


iConvert - Unit and Currency
Raphael Odermatt
Convert units and track rates
Convert units across 17 categories with 398 options. Switch between currencies using daily updated exchange rates. Access converter on Apple Watch for quick and conversions.

Unit Ease - Metric vs Imperial
Cheng Cheng
Convert units and track conversions
Convert units for weight, length, temperature, volume, area, speed, and time. Access size charts for clothing and accessories. Perform everyday conversions like cooking measurements and tyre pressure.

Converter-Universal Conversion
Trelleborg Sealing Solutions Germany GmbH
Convert units, calculate percentages, track timezones, calculate
Convert units including currencies, length, weight, and temperature. Convert time zones and calculate percentages. Includes a running pace calculator and other utility tools for precise measurements and calculations.

Electrical Code-A-Day
PawEng, LLC
Answer daily questions and track your progress
Test knowledge of codes with daily quiz questions. Answer individual questions or complete as many as possible in one session. Includes 366 basic electrician-written questions for apprentices, journeymen, and masters.

Units+
Hebaallah Hossameldien
Convert units and exchange currencies
Convert values between units in 22 categories including acceleration, angle, area, and data storage. Support currency exchange for 160 currencies. Search units by category or globally. Bookmark frequently used conversions.



Mila's Unit Converter PRO
Scott DeSapio
Convert units across 16 categories
Convert units across 16 categories with instant accuracy. Switch between hundreds of units for length, weight, temperature, and more. Calculate conversions for cooking, engineering, travel, and study.

Simple Unit Converter - Pro Measurement and Conversion Calculator for Multi Units
Jian Yih Lee
Convert across length, area, mass, temperature,
Convert across categories including length, area, mass, temperature, volume, density, and flow rates. Switch between like km to miles or Celsius to Fahrenheit. Calculate torque and viscosity values. Export results and share conversions directly.

Walter Machining Calculator
Walter AG
Calculate time, power, and torque
Calculate time, power, torque, cutting force, metal removal rate, and chip thickness for operations like milling, drilling, turning, and tapping. Select materials and input parameters for accurate results.





EngineCalc
iTrinity, Inc.
Calculate engine specs on the go
Provides tools for calculating engine-related metrics. Users can compute actual volume flow, air density, BHP loss, compression height, compression ratio, corrected BHP, and cylinder displacement.


Torque Units Calculator
MPS & BBI International Ltd
Convert instantly
Convert measurements between . Input a value and select source and target . Display results instantly. Support for standard and metric . Store and recall frequently used conversions.


How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.