Spelling Power
This review of Spelling Power includes a comparison with Phonetic Zoo and My Catholic Speller.
Spelling Power is a single volume, non-consumable resource for teaching spelling to children (and adults) of all ages. It includes over 5,000 spelling words organized by rule and difficulty level, dozens of activities to help the child remember the correct spelling, extensive notes explaining how and why the program was designed and a clear explanation of how the program is to be used.