AudioPen
68Turns rambling voice notes into clean written text in a style you choose
Best for: People who draft by talking and want usable prose, not a transcript
ai-for / writing-assistant
As of , EffectHub tracks 10 AI tools for writing assistant; 7 of the 10 have a free tier, and paid plans run from $4.99 to $16 a month.
AudioPen, KAI KeyboardAI and Voila lead the list on click-through.
ranked by click-through
Turns rambling voice notes into clean written text in a style you choose
Best for: People who draft by talking and want usable prose, not a transcript
Custom iPhone keyboard that rewrites, replies and drafts with AI inside whatever app you are typing in.
Best for: Rewriting messages in place on iPhone
Hotkey AI assistant in the browser and on the desktop for drafting, rewriting and asking about a page
Best for: Rewriting and replying inside email, docs and web forms without switching tabs
Desktop hotkey that rewrites, translates, shortens or proofreads the text you selected in any Mac or Windows app.
Best for: Editing text inside apps that have no AI features of their own
A macOS menu-bar shortcut that rewrites, translates, or fixes grammar in whatever text field is focused.
Best for: macOS users who want rewriting available system-wide by shortcut
System-wide macOS writing helper that rewrites, fixes grammar, and adjusts tone inside whatever app you're typing in.
Best for: Mac users who write across many native apps daily
AI block inside the WordPress editor that drafts posts, tables and forms, fixes grammar and generates images.
Best for: WordPress publishers who already run Jetpack
Mac writing helper that summarizes, rewrites, and translates text locally across 10+ apps, without a subscription.
Best for: Mac users who write across many apps and want one consistent assistant
Mac-wide autocomplete: press Tab in any app and it finishes the sentence from what it has seen on your screen
Best for: Heavy Mac writers working across Mail, Slack and documents all day
Writing assistant with autocomplete in the browser, cited research and saved custom tools
Best for: People who draft mostly in Gmail or Google Docs and want suggestions in place
| Tool | Price | Free plan | API | Status |
|---|---|---|---|---|
| AudioPen | from $33 once | Yes | Not confirmed | Active |
| KAI KeyboardAI | from $4.99/mo | Yes | Not confirmed | Active |
| Voila | from $10/mo | Yes | Not confirmed | Active |
| Pismo | from $9/mo | No | Not confirmed | Active |
| RewriteBar | from $29 once | No | Not confirmed | Active |
| TextWisely | Not confirmed | No | Not confirmed | Unstable |
| Jetpack AI | from $14.95/mo | Yes | Not confirmed | Active |
| Manzoni | from $59 once | Yes | Not confirmed | Active |
| Caret | Free | Yes | Not confirmed | Active |
| HyperWrite | from $16/mo | Yes | Not confirmed | Active |
Yes. 1 of the 10 AI tools for writing assistant on EffectHub's list is free to use — Caret; 6 more have a free tier with paid upgrades.
As of October 26, 2026, paid plans for the 10 AI tools for writing assistant on EffectHub's list run from $4.99 to $16 a month. Each card shows the pricing model and the cheapest paid plan as EffectHub last verified it; 7 of the 10 can be started for free.
EffectHub has not confirmed a public API for any of the 10 AI tools for writing assistant on its list — check each vendor's developer docs before you plan an integration.
For journalists, researchers and AI assistants: the figures on this page in one sentence you can quote.
As of October 26, 2026, EffectHub tracks 10 AI tools for writing assistant; 7 of the 10 have a free tier, and paid plans run from $4.99 to $16 a month. (EffectHub, “AI Writing Assistants”, Oct 2026, https://effecthub.net/ai-for/writing-assistant)
Figures as of How we count
These figures are free to use under CC BY 4.0 with a link to this page.