Nonprofit writing-skills platform with sentence-level practice and AI feedback; core activities free forever.
What it is good at
The free tier is genuinely complete rather than crippled — this is a nonprofit, not a freemium funnel. Its sentence-combining and evidence-based writing activities target exactly the clause-level control that developmental writing students lack, with specific revision-oriented feedback.
Use it for
Assigning sentence-combining sets to a developmental section as low-stakes practice between drafts. Giving ESL students targeted work on subordinate clauses with immediate feedback they can retry against without waiting on instructor turnaround.
Where it falls short
Content is built for grades 4-12, so passages can read as juvenile to adult learners and some students find it condescending. It works at sentence and paragraph level only and does nothing for essay-level argument, organization or research. Feedback is rule-based enough that students learn to pattern-match rather than understand.
Cost and capability details last verified Sep 20, 2026. Pricing in this category moves fast — confirm on the vendor’s own page before committing a course to it.
Used in
English English as a Second Language
English: Free forever and aimed squarely at the clause-level control developmental writers lack.
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