Apps Like Boostane for iPhone and iPad
Calculate desired octane with BOOSTane.
The app calculates the amount of BOOSTane needed to reach a desired octane level. Users can save calculations, email or text them, and get estimated horsepower.
Boostane screenshots
Ranked alternatives
Showing 261–280 of 1,000 ranked alternatives.


Springulator Spring Calculator
Newcomb Spring Corp
Calculate forces and stress diagrams
Calculate parameters for compression, extension, and torsion springs. Input dimensions or load data to determine stress, rate, and deflection. Generate reference diagrams and stress charts for design verification.




Workman's Calculator Pro
Bret Hardman
Calculate measurements in feet, inches, and meters
Calculate measurements using feet, inches, yards, meters, and regular numbers simultaneously. Input fractions by selecting a numerator and denominator. Convert between units and perform calculations for construction tasks.

WoodworkerCalc
Jim BARSTOW
Calculate measurements, track errors, layout precisely
Allows users to perform precise calculations with measurements. It tracks errors in fractions and displays rounding discrepancies. Users can switch between decimal and fractional formats. The helps manage layout errors in woodworking projects.

Flight Computer Sim
Diego Rodrigues
Calculate data with precision
A utility simulates an E6B slide ruler for aircraft pilots. Perform conversions, wind corrections for low and high speed. Rotate, slide, and pinch zoom for precise control. Includes three calculation modes.

AZ Calculator: AI & More
Gerardo Arellano
Calculate, convert, and solve instantly
Perform calculations with a scientific calculator, convert units, and use health tools like BMI and body fat calculators. Access financial calculators for loan and investment estimates.


ShowTool LD
Daniel Murfin
Lighting design and electrics utilities.
The app provides utilities for lighting design and electrics. It calculates beam angles, gel cuts, DMX configurations, and power consumption.

Rolled Paper Calculator
Taizo Yamamoto
Calculate expenses and track history
Displays calculations in a scrollable format for easy review. Users can track calculation history, perform basic arithmetic, and use a scientific mode for advanced functions. Input and results are visible simultaneously for accuracy.

PepCal: Peptide Calculator
A & A Design Inc.
Calculate concentrations and ratios
Calculate reconstitution volumes using water estimates. Determine mixing ratios for various sequences. Perform bacteriostatic water calculations for stability. Input molecular weights and concentrations for accurate results.

Transformer Calc 2
Snappy Appz Inc.
Calculate transformers on the fly
Allows users to perform electrical calculations for sizing, overcurrent, wire, and conduit. It supports 2017 NEC and 2021 CEC codes for US and Canada.

Winery Math
Elizabeth LeBeau
Calculate wine chemistry and adjust ingredients precisely
Calculate potassium meta-bisulphite needed for 40 ppms in 60 gallons or 800 liters. Determine total acidity and adjustments for target levels. Calculate sugar or water needed for chaptalization or dilution. Convert between metric and English units.

Techline Calculator
Visual Impact Technologies Inc.
Landscape design project supply calculations
The app provides a guideline for landscape design, project supplies, measurements, and calculations. It includes variables for soil, plants, dripline placement, irrigated area, pressure, flow rate, and emitter spacing.

AirsoftCalculator
Roland Lariotte
Calculate pellet energy in joules
Calculate the energy of airsoft pellets in joules to ensure compliance with legal limits. Input velocity and weight to determine power levels. Set custom thresholds for safe gameplay. Export results for record-keeping.


Tip Calculator % - Easy Tips
Siddharth Patel
Calculate and split bills
Calculate by entering a bill amount and selecting a percentage. Split the total evenly among friends. Choose from preset tip options or enter a custom amount. Display the total per person instantly.

Simple BMI Calculator
Kudit LLC
Calculate BMI and view results
Calculates body mass index using height and weight. Displays BMI value, text label, and visual chart. Follows CDC guidelines for classification.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.