Apps Like e: Spacetime Converter for iPhone and iPad
Convert length and time relativistically.
The app converts between length and time using geometrized units where the speed of light is unity. It allows users to think about the world differently by converting units like inches to seconds or miles to years.
e: Spacetime Converter screenshots
Ranked alternatives
Showing 501–520 of 1,000 ranked alternatives.
The Shelly Company Calculator
The Shelly Company
Calculate paving and building estimates
Calculate paving and building project costs using four tools: aggregate, asphalt, concrete column, and concrete flatwork. Input dimensions like length, width, and thickness to get estimates. Export results for reference.
PixelCalc
John Lullie
Digital image conversion and resizing tool.
The app converts pixels to inches and inches to pixels for digital images. It includes a proportional calculator for resizing images and reference charts for print sizes and shutter speeds.
RoofCalc - Roofing Calculator
Infoguide Pty Ltd
Calculate roof dimensions quickly
Calculate roof dimensions including lengths, angles, heights, and layouts for hipped, gabled, and single-pitch roofs. Determine birdsmouth measurements and pitch. Switch between metric and imperial units. Set default values for common inputs.
Expeditions: Arnold Arboretum
Harvard University
Explore plants, learn botany, discover history
Explore the 281 acres with interactive maps and plant guides. View photos, text, and audio about 60 featured species and sites. Learn about botany, horticulture, conservation, and history. Discover plant collecting and their significance.
My Kitchen Calculator
Mobotronics LLC
Convert recipes, track measurements, calculate portions
Convert recipes to desired serving sizes by scaling ingredients up or down. Multiply, divide, or portion recipes directly. Convert measurements between common cooking units.
All-in-One Calculator Tools
Rajib Biswas
Calculate, convert, and organize tasks
Perform calculations with a scientific , solve equations, and convert units. Access financial for loan and interest calculations. Use health calculators for BMI and calorie tracking. Manage tasks with a planner and note-taking features.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.