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JustDone vs Originality.AI

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. JustDone starts at $19.99, Originality.AI at $14.95. Only Originality.AI ships a public API.

JustDonePlagiarism and AI-detection checking bundled inside a wider AI writing suite, not a standalone scanner.Originality.AIAI-text and plagiarism detection built for publishers and agencies

Side by side

FactJustDoneOriginality.AI
CategoryAI Detection & HumanizersAI Detection & Humanizers
Pricing modelPaidPaid
Starts at$19.99 month$14.95 month
Public APINoYes
PlatformsWebWeb, Chrome Ext, API
CompanyGM Appdev LimitedOriginality.AI
Launched—2022
Last verifiedSep 1, 2026Sep 6, 2026

What our research says

JustDone

JustDone's plagiarism checker is useful as one tool inside a bundle rather than a dedicated product: it catches exact and paraphrased matches and links sources, but a shopper who wants only plagiarism checking ends up paying for 30-plus unrelated writing tools at the same time. The site itself says final review and fact-checking remain the user's job.

Pros

  • Flags both verbatim copies and paraphrased matches, not just exact text
  • Links each flagged passage to its likely source
  • Bundled with AI detection and a rewriter in the same editor, so flagged text can be revised immediately

Cons

  • No standalone plagiarism-only plan; the cheapest tier bundles 35+ unrelated tools
  • The site itself cautions that users must still verify facts and do a final review manually

Originality.AI

The detector to pick if you are a publisher or agency policing freelance output at volume, because the team history and writing replay matter more than the raw score. Do not use it to accuse a student; no detector is accurate enough to carry that weight.

Pros

  • Credit model is legible: 100 words per credit, no hidden weighting
  • API on the higher tier makes batch pipelines possible
  • Chrome extension works inside Google Docs, where the writing actually happens
  • Writing replay from revision history is process evidence, not just a score

Cons

  • Monthly subscription credits expire, so a light month is wasted spend
  • The jump from $14.95 to $179 a month is a steep single step
  • False positives on heavily edited or non-native English writing are a documented hazard across every detector
  • Accuracy benchmarks are largely vendor-run

Which one fits

Choose JustDone if you need

  • Students and content writers who already want the full JustDone writing suite
  • Anyone needing paraphrase detection, not just exact-match copying

Choose Originality.AI if you need

  • Content agencies auditing freelance submissions before they pay for them
  • Publishers sweeping large archives for machine-written pages
  • SEO teams screening acquired, syndicated or outsourced content

More comparisons

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