Calculate PPI, aspect ratio, and screen dimensions
Calculate PPI, aspect ratio, and screen dimensions in inches or centimeters. Measure height, width, and area of any screen. Access a list of standard resolutions and common devices to preset data quickly.
Create photos by setting diameter in pixels, millimeters, centimeters, or inches. Import or capture photos, zoom, and move images. Edit with filters, focus, effects, and text. Adjust colored borders. Save, print, email, or share the final image.
Monitor device hardware and software performance. View CPU details, screen specifications, battery status, and network information. Track memory and storage usage. Access sensor data and run diagnostics for iPhones and iPads.
Estimate volume for rectangular, circular, and stepped slabs, footings, columns, walls, and steps. Calculate block and CMU quantities for walls. Estimate mortar mix materials and rebar amounts. Determine gravel needs for bases.
Calculate materials with 10 tools for gravel, soil, mulch, concrete, pavers, retaining walls, grass seed, sod, area, and volume. Input dimensions in inches, feet, yards, centimeters, or meters. Output results in US customary or metric units.
Calculate PPI by inputting screen dimensions and pixel count. Explain PPI vs DPI and dot pitch. Provide formulas and resolution categorization. Include definitions and user comments on related terms.
View device specifications and compare iPhone, iPad, and Apple Watch models. Check display quality, performance, and battery life. Read long-form reviews and stay updated on news and developments.
Build mobile projects using JavaScript and React. Run apps on an iOS device connected to a computer. Support interactive gestures and graphics. Requires basic programming knowledge. Uses React Native 0.81.1.
Convert measurements between , , and centimeters. Input fractions or decimals for precise calculations. View results on a visual measure display. Perform addition, subtraction, multiplication, and division with measurement values.
Calculate materials for and brickwork projects. Estimate blocks, bricks, mortar, concrete, and gravel needed. Input wall dimensions in various units. Use calculators for area, volume, and retaining walls.
Measure objects with a camera ruler mode that uses your phone's camera for distance calculations. Switch between inches and centimeters. Adjust measurements with precision sliders. Access a classic ruler and tape measure for manual measurements.
Calculate , topsoil, dirt, or landscaping material needed for projects. Input dimensions for rectangular, circular, or custom areas. Enter measurements in inches, feet, yards, centimeters, or meters.
Calculate material needs for patios using seven estimators: concrete slab, pavers, paver base, polymeric sand, sand & gravel, area, and volume. Input dimensions in inches, feet, yards, centimeters, or meters.