Showing 1–20 of 1,000 ranked alternatives.
Lens Shapers Inc.
Calculate lens parameters and prescriptions
Calculate parameters for eyewear prescriptions. Input lens data to determine cutout, thickness, and vertex compensation. Transpose Rx values and calculate induced prism. Adjust for tilt, wrap, and crossed cylinders.
Hangzhou Free Notes Technology Co., Ltd
Note, edit, and organize digitally
Take with handwriting recognition and stylus support. Annotate PDFs and images. Organize into folders and tags. Search text and handwriting. Sync across devices. Set reminders and share . Export in multiple formats.
Cider Software LLC
Calculate with dual-line display and multi-line input
A with dual-line display showing input and result. Supports multi-line equations and tap-to-move cursor. Saves calculation history with timestamps and labels. Allows emailing calculations and swiping to review previous entries.
Raymond GUITTONNEAU
, color, and create freely
Create drawings with 20 colors and 3 line thickness options. Continue drawing sessions across devices. Access calming background music. No in- purchases or ads. Designed for ages 1 and up.
Noriyasu Kutsuzawa
Calculate shape dimensions and area
Calculate lengths, angles, and area of shapes. Select a shape from a list. Input values into text boxes linked to orange points. Adjust point positions using the NEXT button or tapping points.
Rob McQualter
Calculate parameters quickly
LensCalc helps professionals perform essential calculations. Enter power and vertex distances to determine new power requirements. Calculate effective diameter and lensmeter helper values. Transpose prescriptions and estimate thickness.
1-800 CONTACTS, Inc.
Measure PD and get glasses details
Measure pupillary distance using computer vision. Input glasses measurements to calculate Rx details. Generate printable prescriptions for glasses or VR headsets. Save and share measurement results securely.
Core five, Inc.
3D objects with gestures
3D models using gesture-based controls for object and camera manipulation. Multi-select vertices, edges, faces, and objects with long taps or frame drawing. Merge, connect, and create faces from vertices. Draw cuts on edges.
david flikier
Calculate IOL power and values
Calculate intraocular lens power for cataract surgery in virgin and refractively operated eyes, using variables like corneal asphericity and P/A ratio. Analyze lenses with multiple vector analysis to determine astigmatism correction.
Branching Factor LTD
Play with beams and solve puzzles
Control beams to solve puzzles through reflection, refraction, and dispersion. Use lasers, lenses, mirrors, prisms, portals, and black holes. Adjust beam curvature and color. Complete challenging levels with physics-based interactions.
Cider Software LLC
Calculate with dual-line display and multi-line input
A with dual-line display showing input and result. Supports multi-line equations and tap-to-move cursor. Saves calculation history with timestamps and labels. Allows emailing calculations and swiping to review past entries.
Noriyasu Kutsuzawa
Calculate shape lengths and angles
Calculate lengths, angles, and area of shapes. Select a shape from a list. Enter values in boxes linked to orange points. Adjust point positions using the NEXT button or tapping points. Retrieve calculated measurements based on input.
Lajeune and Associates, LLC
Style with diverse characters and haircuts
Create and customize hairstyles for virtual characters. Choose from diverse characters representing BIPOC, people with disabilities, and LGBTQAI+ communities. Select from 28 characters including holiday-themed options.
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.