Suggestions for KeTCindy

The following packages have something in common with the package KeTCindy. The packages are ordered in decreasing similarity.

Package endofproofwd: An end of proof sign
Package graph35: Draw keys and screen items of several Casio calculators
Package mgltex: High-quality graphics from MGL scripts embedded in LaTeX documents
Package eukleides: A geometry drawing system
Package mp-geom2d: Flat geometry with METAPOST
Package tzplot: Plot graphs with TikZ abbreviations
Package venn: Creating Venn diagrams with METAPOST
Package calculatoritems: Insert menus/items for classic calculators
Package shapes: Draw polygons, reentrant stars, and fractions in circles with METAPOST
Package tableauvariations: Variation tables in METAPOST
Package t-angles: Draw tangles, trees, Hopf algebra operations and other pictures
Package mfpic4ode: Macros to draw direction fields and solutions of ODEs
Package euclidean-lattice: Draw two-dimensional Euclidean lattices with TikZ
Package polyhedra: A TikZ package for drawing polyhedra
Package pmdraw: Draw elements of the diagram monoids
Package string-diagrams: Create string diagrams with LaTeX and TikZ
Package profsio: Commands (with TikZ) to work with French BTS SIO maths themes
Package repere: METAPOST macros for secondary school mathematics teachers
Package mptrees: Probability trees with METAPOST
Package causets: Draw causal set (Hasse) diagrams
Package domaincoloring: Draw colored represenations of complex functions
Package pst-func: PSTricks package for plotting mathematical functions
Package tkz-grapheur: A LaTeX package with tools for graph plotting (and TikZ)
Package bargraph-js: Create bar graphs using form fields and JavaScript
Package cartonaugh: A LuaLaTeX package for drawing karnaugh maps with up to 6 variables
Package hf-tikz: A simple way to highlight formulas and formula parts
Package karnaughmap: Typeset Karnaugh maps
Package nl-interval: Represent intervals on the number line
Package twoxtwogame: Visualize 2×2 normal-form games
Package tkz-interval: Interval brackets made with TikZ
Package tkz-graph: Draw graph-theory graphs