Scripps Spelling Bee
All You Need to win Scripps Regional Spelling Bees and National Spelling Bee is SpellPundit (https://www.spellpundit.com).
In last several years, 99.9% of words asked in Scripps Regional and National Spelling Bees are in SpellPundit.
Not convinced? Read what CNBC and New York Times say about SpellPundit:
https://www.nytimes.com/2019/05/31/us/spellpundit-scripps-spelling-bee.html