Transpose prescriptions and calculate lens parameters
Transpose prescriptions and calculate compensated powers for tilt and vertex distance. Estimate blank size and lens thickness. View detailed equations and study references for additional insights.
Showing 121–140 of 1,000 ranked alternatives.
Kazuya Fujita
Sign with your hand, save as image,
Create a by handwriting with customizable color and pen thickness. Choose from different pen and eraser tools. Undo or redo actions. Save the as an image or copy it to the clipboard. Scale display is available.
祥全 夏
Track progress and set goals
Tracks progress with detailed data analysis. Logs books read, sets goals, and provides insights into habits. Syncs across devices and offers personalized recommendations.
Nix Sensor Ltd.
Scan, connect, and control sensors
Manage device settings and view scan data. Access single scan mode and premium databases. Create and share custom libraries with compatible devices. Perform multipoint average scanning for detailed analysis.
Appenvision Ltd
Photos, edit details, apply effects
Edit photos with motion , bokeh lens, and mosaic effects. Adjust brightness, contrast, and color. Crop images to various sizes. Share edited photos directly. Apply to the entire image, background, or specific faces.
Roberto Antonio Campusano Acosta
Convert units, solve equations, store data
Perform complex calculations in algebra, geometry, trigonometry, and calculus. Convert units, solve equations, and manage financial computations. Store data and access tutorials for detailed guidance.
VisTech.Projects LLC
Measure objects, split parts, calculate ratios
Measure objects using touch as or tape measure. Split objects into equal parts and calculate width/height ratios. Estimate diameter, angles, and divide circular objects. Switch between millimeters and inches for units.
David White
Manage prescriptions and track refills
Track refills with refill reminders and cancel alerts. View refill counts and set alerts days before or after the last dose. Manage prescriptions for up to 10 people. Sync with medical providers via RX list. No ads or in- purchases.
Armchair Engineering
Calculate , diameter, or velocity
Calculate fluid rates, pipe diameter, or liquid velocity. Choose units for diameter, velocity, and . Set decimal precision for results. Solve equations for accurate measurements.
良峰 侯
Use flashlight, compass, and level tools
Utilities provides flashlight, compass, level, protractor, and clock for iPhone. iPad version includes ruler. Features include high definition design and full support for all devices.
DANIIL VOIDILOV, IE
Calculate, store, and solve equations
Solves math problems with support for multi-story fractions, powers, and roots. Calculates trigonometric functions and complex numbers. Stores expressions and answers. Switches between basic, , and fraction modes.
Samuel Blackburn
Calculate ratios instantly
Calculate ratios by entering the desired ratio and bottle size. Determine the exact amounts of water and solution needed. Supports litres and millimetres with future unit additions. Share results or provide feedback through in- options.
David McGavern
Measure distances, visualize objects, frame photos
Measure distances between points using the tool. Visualize object sizes with the Box tool. Preview photos on walls using the Photo Frame tool. Save all actions in the History tool. Tap lines to delete them.
Kamyar Ghandi
Design lenses, simulate optics, control components
Model 2D lenses and mirrors with precise control over shape and placement. Design aspheric surfaces and perform geometric ray tracing. Conduct sequential and non-sequential analysis. Calculate front and back focal lengths and principal surfaces.
Phan Nhat Đang
Calculate GFR from blood test results
Calculate estimated glomerular filtration rate using blood creatinine, age, body size, and gender. Determine kidney disease stage and treatment plan. Monitor kidney function over time. Share results with healthcare providers.
Valaji Global
Calculate with precision
Calculate for different shapes and dimensions. Input material type, length, width, and thickness. Choose units and view results in kilograms or pounds. Save calculations and export data as PDF.
Yury Lipnitski
Test speaker output and ambient noise
Check speaker and monitor quality with real-time noise measurement and frequency analysis. Generate custom frequencies for testing. Adjust audio settings to enhance clarity. Access soothing sounds for relaxation.
Genesis Power Limited
Predict power use and compare bills
Monitor and manage consumption with real-time usage tracking and weekly forecasts. Compare usage to similar homes. Estimate monthly bills and make payments. Order bottled gas refills.
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