Primer Pro
Making good primers requires much work: listing words according to the letters they contain, and keeping track of which letters have been taught so far. PrimerPro does this for you, making it easy to create primers that follow sound teaching principles. When you put lots of care into developing a primer, learning to read is easier for the learner.
Making a good primer involves much work. The letters need to be taught in a specific order. Primer Pro keeps track of this for you, it can search wordlists for words using only the letters that have been taught so far. It can also search for specific parts of speech or linguistic features.