Is AuthoredUp or Sonar better for a founder on LinkedIn?

AuthoredUp suits a founder who writes their own posts and wants the editor, the hooks, the preview and deep analytics on their own history. Sonar suits a founder whose week is full of meetings: it reads them read-only, drafts LinkedIn and X posts in a measured voice and keeps private names out.

How much do AuthoredUp and Sonar cost?

On 22 September 2026 authoredup.com/pricing listed Individual at $19.95 a month, or $16.63 a month billed $199.50 a year, and Business at $14.95 per profile a month for three or more profiles, free to start with no card. Sonar is $99 a month or $990 a year, every feature, 7 days free.

Does AuthoredUp write posts with AI like Sonar does?

Its feature table lists Coauthor, described as AI writing in your voice and marked Beta on both plans; everything else on its pages is an editor, a calendar and analytics, and the writing is yours. Sonar writes the first draft from your week and holds it to a voice measured from your published posts; you edit and approve.

Compare · Sonar vs AuthoredUp

Sonar vs AuthoredUp: your week as the source, or the editor.

AuthoredUp is a LinkedIn editor and analytics desk for people who write their own posts: styling, hooks and post endings, readability grades, a preview, a calendar and deep numbers on your own history, from $19.95 a month. Sonar writes the draft: it reads your calendar, meetings, Slack and notes read-only and drafts LinkedIn and X posts in a voice measured from your own posts, at $99 a month. Pick AuthoredUp if you enjoy the writing; pick Sonar if the week should do it.

Side by side All comparisons

Sonar and AuthoredUp, side by side

The same seven rows as the AuthoredUp review, which carries the plan-by-plan detail.

Last verified 22 September 2026 against AuthoredUp's site and Sonar's code.

AuthoredUp and Sonar compared on 7 rows, as of 2026-09-22
	AuthoredUp	Sonar
Source of the post	AuthoredUpYou write it, in its editor, with a hooks library and CTA templates beside you.	SonarA moment from your week: Google Calendar, Google Meet, Slack, Granola, Fireflies, Wispr Flow, Notion and Zoom, read-only, the last seven days.
Voice model	AuthoredUpYours, typed. Coauthor, its “AI writing in your voice”, is marked Beta on both plans.	SonarMeasured from your published posts: sentence, paragraph and question rates. Private people appear as roles, by rule.
Platforms	AuthoredUpLinkedIn: profiles, company pages and groups.	SonarLinkedIn and X; a long X take becomes a thread.
Scheduling	AuthoredUpSchedule from the extension or the web app, with a calendar, reminders and a best time read from your own posts.	SonarSchedules to LinkedIn and X; the first comment goes to your clipboard. Nothing sends itself.
Analytics	AuthoredUpDeep on your own history: period comparison, growth timeline, saves, sends, reach, CSV export and an API.	SonarYour posts against your own average; the Chrome extension reads your impressions.
Price	AuthoredUpIndividual $19.95 a month, or $16.63 a month billed $199.50 yearly; Business $14.95 per profile a month from three (authoredup.com/pricing, 22 September 2026).	Sonar$99 a month or $990 a year, every feature.
Trial	AuthoredUpFree to start, no card.	Sonar7 days; card at checkout, charged on day 8.

Read on 22 September 2026 from AuthoredUp's own pages and the code that runs Sonar. Prices move; the price row links the vendor's page.

Where AuthoredUp is the better buy

If you write your own posts, AuthoredUp is the better desk. Its editor styles text in bold and italic, carries a hooks library and CTA templates its plan card sums as 300+ hooks and post endings, grades readability and previews the post on several devices; Sonar's editor shows the preview and the fold and has no styling and no hook library. Its analytics go deeper into your own history than Sonar's: a dashboard that compares this period with the last, a growth timeline, a breakdown by post type, day, length and readability, side-by-side post comparison, your archive imported, CSV export and an API. It costs a fifth of Sonar's price, starts free with no card, manages company pages and groups on every plan, and its pages state that it collects no cookies, runs no automation and hosts its data in Germany.

Where Sonar differs

Sonar is for the founder without the writing hour. It connects read-only to Google Calendar, Google Meet, Slack, Granola, Fireflies, Wispr Flow, Notion and Zoom, reads the last seven days about once a week, and keeps the moments worth saying: the decision, the number, the lesson a client said out loud. The raw text is read once and discarded. Each week five drafts are dealt from those moments, a story you told it, your niche and a pillar. The voice is measured from your published posts, a private person appears in a draft as a role by rule, and it publishes to X as well as LinkedIn. One plan, every feature, nothing metered; how a week becomes posts shows the mechanism.

The verdict

Pick

AuthoredUp

You write your own posts and want the editor, the hooks and the preview in one place.
You want deep analytics on your own LinkedIn history at a low price.
You run several profiles, company pages or groups and want a per-profile plan.

Pick

Sonar

Your week is full of meetings and you want the draft written from them, with private names kept out by rule.
You post on X as well as LinkedIn.
You want a voice measured from your own posts and one flat price.

FAQ

Sonar vs AuthoredUp, asked.

Sonar

The draft arrives written.

Sonar drafts LinkedIn and X posts in your voice from what happened in your week, and publishes the ones you approve. 7 days free, then $99 a month. The AuthoredUp review has the plan detail; Sonar vs Taplio and Sonar vs Supergrow sit on the same rows.

Start free All comparisons