Grammarly vs Yomu

Grammarly

Still the default for catching mistakes inside other people's software, but the free tier has quietly become an AI-prompt meter and the honest price is $30 unless you commit to a full year.

Pros

• +Runs inside the apps people already write in rather than as a separate editor
• +Free tier still covers spelling, grammar and tone detection with no time limit
• +Pro folds in plagiarism and AI-text detection that rivals charge for separately

Cons

• −The $12 headline is the annual rate; paying monthly costs $30
• −Free AI allowance is 100 prompts a month and depletes quickly
• −No public API, so it cannot be embedded in another product
• −Enterprise pricing is not published anywhere on the site

Yomu

Yomu bundles the four things a thesis actually needs — drafting, citation formatting, a plagiarism pass and PDF questioning — into one editor, at a price below most single-purpose rivals. It is squarely academic: shaped for essays and literature reviews, not business writing. Pro's 1,000 monthly actions go quickly if you lean on autocomplete.

Pros

• +Citation formatting across more than 700 styles
• +Plagiarism check sits in the same editor as the drafting tools
• +Chat with uploaded PDFs and images plus academic and web search
• +Document editing and the default chat model do not consume credits

Cons

• −Pro caps you at 1,000 AI actions a month; unlimited needs Ultra
• −Month-to-month prices are roughly double the annual rates ($21 vs $10 for Pro)
• −Web only — no desktop app, no API, and mobile is a browser experience
• −No company name, address or country published on the site

Is Grammarly cheaper than Yomu?

On published entry prices, Yomu starts lower — $10/mo against $12/mo for Grammarly. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does Grammarly or Yomu have a free tier?

Both: Grammarly has a free tier, and Yomu has a free tier.