Free to startA first reader at any hour, and a memory of the manuscript: stored in a project, your chapters are used to keep the character bible and prepare the synopsis.
Recommended planFree to start. Pro, $20 per month ($17 per month if billed yearly), if you are working on a full manuscript.
Free to startAll your research in one place: it answers from your sources only and shows the exact passage. Also useful for reading a contract clause by clause.
Recommended planFree: 100 notebooks, 50 sources per notebook, 50 questions per day.

A reference corrector for French, also available for English: agreement, typography, repetitions, with an explanation of each error.
Recommended planAntidote+ Personal, one language, $59.95 the first year, then $48 per year. 30-day free trial.
Free to startCheck a detail about a period, a place, or a trade, with the link to the source of each piece of information.
Recommended planFree to start: basic searches are almost unlimited. Pro, $20 per month (€22 on the French App Store).
Free to startYou tell a scene out loud and find it written and punctuated in your word processor: the first draft moves forward without you rereading yourself.
Recommended planFree, $0: 2,000 words per week on desktop. To dictate every day: Pro, $15 per user per month ($12 if billed yearly).
Free to startIn voice mode, it plays the bookseller or the journalist and has you rehearse your book pitch out loud.
Recommended planFree to start, with a limit on voice. Plus, $20 per month.
Prices taken from the vendors’ official pages, dated on each tool page. These subscriptions are not included in Nova. Brands are named to identify the tools. No affiliation.