ProWritingAid
Tool · this deep dive is built from the official pages of the platform itself and of the tools that support it.
Overview
ProWritingAid is a text editor and proofreader. It checks grammar, spelling and punctuation, gives more than 25 analytical reports on style and readability, contains Rephrase — rephrasing a sentence to be more formal, less formal, longer or shorter — and Sparks: rewrite, improve, summarize, expand or continue a fragment. Declared separately are the analysis of chapters and manuscripts and a house set of style rules and terminology. The functions are taken from the plan cards and the explanations attached to them on the pricing page.
The arrangement of the product is noticeably oriented towards literary prose: the units of work are the chapter and the manuscript, not the post or the letter. This is visible in the limits too, discussed below.
The languages could not be established. On the pages that were read — prices, terms of use and privacy policy — the supported languages are not listed at all. The interface of the pages is available under the paths /en/ and /es/, that is in English and in Spanish, but that is the language of the site. A list of the languages in which the tool checks text is not in the sources that were read: neither Russian, nor Arabic, nor Hindi, nor Chinese is named there — nor is any other language.
Which platforms it works with
There is no answer, and the boundary of our knowledge must be drawn carefully here.
On the pricing page that was read, only modes of working inside the tool itself are listed: documents, reports, collaboration. A list of external integrations and plugins is not given there. Direct publishing to social networks the tool does not declare.
At the same time the integrations page was not opened separately, so asserting the absence of plugins is not possible. Exactly one thing is known: they are not on the pricing page. This is the silence of a particular source, not a fact about the product.
Pricing
The prices are from the pricing page. The currency requires a reservation: the page returned the sums in euros when requested without a country being specified. In another jurisdiction the currency and the sums may differ — this is a limitation of the source as captured, not a property of the plan.
There are two paid steps, and the gap between their payment schemes is extraordinary.
Premium — 30.00 EUR a month with monthly payment or 10.00 EUR a month with annual payment, that is 120 EUR a year.
Premium Pro — 36.00 EUR a month with monthly payment or 12.00 EUR a month with annual payment, that is 144 EUR a year.
Monthly payment here costs three times what annual payment costs — this is not a discount of the customary 20–25% but a threefold difference, and it is worth taking into account.
The cheapest step is 10.00 EUR a month with annual payment. If you pay monthly, nothing below 30.00 EUR a month is available.
The page also has a third tab — Lifetime, with a perpetual licence. It is known only that such a tab exists on the page.
What is free
There is a free plan, it is called Free and it is permanent.
It includes: a limit of 500 words per document, 2 runs of each report a day, 10 Rephrases a day, 3 Sparks a day, grammar, spelling and punctuation checking, a thesaurus and a choice from more than 40 document types.
The limit of 500 words per document is the key one here. For a tool whose units of work are the chapter and the manuscript, five hundred words mean that free of charge you can check a fragment, but not a chapter.
Watermarks and marks on the output on the free plan the sources do not name — though for a text editor there would be nowhere to put them anyway.
Legal differences between the free and the paid plans the documents do not draw at all: both the rights to the text and the tool's refusal to train on it are worded identically for all steps. The difference runs only along the volume of work.
Restrictions
The steps differ by several quantities at once.
Free — 500 words per document, 2 runs of each report a day, 10 Rephrases and 3 Sparks a day.
Premium — unlimited words, unlimited report runs and unlimited Rephrases, but 5 Sparks a day and 1 Chapter Critique a day.
Premium Pro — 50 Sparks a day and 3 Chapter Critiques a day.
Note what exactly remains limited on the paid plans: the limits on text volume and on reports are lifted, while the heavy AI operations — Sparks and chapter analysis — remain daily quotas on all steps, including the senior one.
The analysis of a whole manuscript is arranged separately: it is paid for with separate Story Credits on top of the subscription. The subscription gives a discount on them — up to 40% on Premium and up to 65% on Premium Pro — but does not cancel the purchase itself. That is, the heaviest operation of the tool is not included in any plan in full.
The Sparks and Chapter Critique limits renew daily.
From this layout the tariff logic of the tool becomes visible: what is paid for here is not the volume of text but access to the heavy AI functions. Unlimited on the paid plans become the operations that are cheap to compute, while those that cost more remain rationed on both Premium and Premium Pro — only the size of the daily ration changes: from 5 to 50 Sparks and from 1 to 3 chapter analyses.
Rights to the output
The rights stay with the user, and this is said twice, in two different documents.
The terms of use, clauses 4.2–4.3, verbatim: "You retain ownership of all content you post, upload to, or otherwise share on the site".
The privacy policy confirms it from the other side — from the side of what the tool does not claim: "We do not retain any rights to any of the documents or other content uploaded into our system".
By plan this does not differ: reservations for Free or Premium are absent from the documents. Both wordings are blanket ones.
Do they train on your data
No — and ProWritingAid is one of the few that denies it directly rather than keeping silent.
Verbatim from the privacy policy: "When using ProWritingAid, your texts will not be used to improve the quality of our services".
The same place says what happens to the text after the work: on completion of the grammar check "all submitted texts and their improvements will be deleted" — both the submitted texts and the improvements made to them are deleted.
And the same place names what the tool trains its algorithms on instead of users' texts: on texts proofread by in-house professional copyeditors.
A separate opt-out procedure is not described — by the logic of the document it is not required: there is nothing to opt out of, since there is no training on your texts. What can be influenced is only marketing mailings and advertising cookies.
The value of this section lies in its definiteness. A direct "opt-out" clause is not in the source, but the document creates no need for one either: this is the rare case where "no" is said in words rather than inferred from silence.
How you earn with it
What is known about commercial use: ownership of the content stays with the user by the direct wording of the terms, and the tool separately disclaims rights to uploaded documents. Differences by plan the documents do not draw in this part — neither Free nor Premium is singled out.
A separate permission to sell or monetise the output is not in the text of the terms either; what is there is the retention of ownership by the user and the tool's disclaimer of rights. The difference between these two things and silence about monetisation is the same as at other tools: the retention of rights by the user is not the same thing as an explicit commercial licence.
What it will not do
The restrictions at ProWritingAid are written out in detail, and almost all of them concern conduct rather than subject matter.
Threatening violence, abusing, harassing, defaming and speaking obscenely towards other users the terms forbid directly (section 6.1, ground rules).
Publishing material that infringes other people's intellectual property rights and other people's privacy it will not allow. Material encouraging illegal activity is forbidden separately.
Sending spam and mass mailings it will not agree to, nor transmitting viruses.
Using someone else's account or passing yourself off as another it will not permit.
Passing unsuitable material to minors is forbidden; children may use the tool only through ProWritingAid for Education.
Systematically harvesting data from the site and registering accounts programmatically is not allowed. Forbidden separately are automated requests to the tool outside the documented API (clause 12.2) — that is, scripting text checks around the API will not work.
A thematic list of prohibited subjects — violence, politics, explicit content as a genre — is ABSENT from the document. The prohibitions are addressed to how you treat people and the tool, not to the plots you write. For an editor of literary prose this is a substantial difference from generative tools, but no permission for anything can be deduced from it.
Mark the text as made by AI it does not promise: neither watermarks, nor metadata, nor C2PA, nor a requirement to mark the output are mentioned in the terms and privacy policy that were read.
Name the languages it works in it is not ready to either: a list of supported languages is not in the sources that were read.
Verified data
The checked data this deep dive rests on.
About the platform
a text editor and proofreader: grammar, spelling and punctuation checking, more than 25 analytical reports on style and readability, Rephrase — rewording a sentence to be more formal, less formal, longer or shorter, Sparks — rewrite, improve, summarise, expand or continue a fragment, analysis of chapters and manuscripts, a custom set of style rules and terminology
the features are taken from the plan cards and their explanations on the pricing page; the product is noticeably oriented towards literary prose
source, checked 2026-08-07
Pricing
yes, the Free plan: a limit of 500 words per document, 2 runs of each report a day, 10 Rephrases a day, 3 Sparks a day, grammar, spelling and punctuation, a thesaurus, a choice of more than 40 document types
source, checked 2026-08-07
Premium and Premium Pro; paid monthly 30.00 EUR and 36.00 EUR a month; paid yearly 10.00 EUR a month (120 EUR a year) and 12.00 EUR a month (144 EUR a year); the page has a third tab, Lifetime, with a perpetual licence
the page returned prices in euros when requested without a country; in another jurisdiction the currency and amounts may differ — this is a limitation of the source as taken, not a property of the plan
source, checked 2026-08-07
10.00 EUR a month paid yearly (Premium, billed 120 EUR a year); paid monthly the cheapest tier is 30.00 EUR
the currency is as the pricing page delivered it; see the note to paid_plans
source, checked 2026-08-07
Limits and restrictions
Free — 500 words, 2 runs of each report a day, 10 Rephrases and 3 Sparks a day; Premium — unlimited words, report runs and Rephrases, 5 Sparks a day, 1 Chapter Critique a day; Premium Pro — 50 Sparks a day and 3 Chapter Critiques a day; heavy analysis of a whole manuscript is paid for with separate Story Credits, discounted by up to 40 per cent on Premium and up to 65 per cent on Premium Pro
the Sparks and Chapter Critique limits renew daily; Story Credits are a separate purchase on top of the subscription
source, checked 2026-08-07
Restrictions
threats of violence, abusive, harassing, defamatory and obscene speech towards other users are forbidden, as is posting material that infringes others' IP rights and privacy, material encouraging unlawful activity, spam and bulk mailings, viruses, using someone else's account, impersonation, passing unsuitable material to minors, systematic harvesting of data from the site and programmatic registration of accounts; automated requests to the service outside the documented API are forbidden separately
section 6.1 ground rules and clause 12.2; children may use the service only through ProWritingAid for Education
source, checked 2026-08-07
Legal
rights stay with the user, verbatim from the terms: «You retain ownership of all content you post, upload to, or otherwise share on the site», and from the privacy policy: «We do not retain any rights to any of the documents or other content uploaded into our system». It does not differ by plan — there are no caveats for Free or Premium in the documents
clauses 4.2 and 4.3 of the terms; the same wording is repeated in the privacy policy
source, checked 2026-08-07
no, verbatim: «When using ProWritingAid, your texts will not be used to improve the quality of our services»; the same place says that after a grammar check «all submitted texts and their improvements will be deleted», and that the algorithms are trained on texts proofread by in-house professional copy editors
the most unambiguous denial of training on user text among the services checked
source, checked 2026-08-07
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