Curipod is an online platform that provides educational tools for teachers and students, including lesson creation, hosting, and participation, with a focus on sparking curiosity and excitement for learning.
Freemium
Rank: #11
Visits: 166.5K 
Gnod is a project that aims to use the latest technological advances to help users discover new things they might like, with over 300,000 monthly users.
Free Rank: #14 Visits: 126.1K 
LanguageTool is a writing assistant that detects overused phrases, foreign terms, redundant words, and improper word choice, and can also paraphrase sentences using artificial intelligence.
Freemium Rank: #1 Visits: 9.9M 