Prices checked on September 23, 2026 at authoredup.com/pricing.
AuthoredUp is a browser extension that grew into a full tool, and it's very popular with regular LinkedIn creators. Its strength comes down to one word: preview. You see exactly how your post will look on mobile and desktop before you send it, including the famous "see more" cutoff.
The Individual plan is $19.95 a month for one profile, or $16.63 a month on annual billing, charged $199.50 a year. The Business plan starts at $14.95 per profile per month, or $12.46 on annual billing, with a ten-profile minimum on the annual plan. Their trial doesn't ask for a payment method.
Kast is 29 €, 49 € and 149 €, with a seven-day trial, card required, and nothing charged before day eight.
| AuthoredUp | Kast | |
|---|---|---|
| Paid entry plan | $19.95 a month | 29 € a month |
| Trial without a card | Yes | No, card required |
| Mobile and desktop preview | The market benchmark | Basic preview |
| Text formatting | Bold, italics, bullets, emojis | Basic |
| Draft library | Yes, with tags | Yes |
| Post analytics | Yes, detailed | Posts, engagement, the post each contact came from |
| Score before publishing | No | Four criteria, targeted rewrite |
| Assisted writing | Limited | First draft calibrated to your voice |
| Engagement capture | No | Yes, job title and company |
| Export for prospecting | No | Lemlist, Instantly, CSV |
| Platforms | LinkedIn and X, Threads coming soon |
AuthoredUp answers a question of form: is my post readable, cut in the right place, well laid out. It's a real question, and plenty of posts fail for that reason.
Kast answers a question of substance: does this post deserve to be published. Does the hook hold in one line, does the structure carry the reader to the end, is there a CTA, does the text sound like you.
The two complement each other more than they compete. Our free analyzer actually covers part of AuthoredUp's ground, since it checks length, the cutoff and readability along with the substance.
AuthoredUp shows solid analytics on your posts: impressions, reactions, comments, trends over time. Those numbers are still just numbers.
With Kast, a published post becomes a list of people, with their job title and company, that you can export to Lemlist, Instantly or a CSV file. A consultant who spots two sales directors among the twenty people who commented has made their week.
The preview, no contest. Rich formatting, with special characters that display properly on LinkedIn. Organizing drafts with tags. A trial with no credit card, which we don't offer.
And the entry price, about ten euros lower than ours.
AuthoredUp covers exactly that need.
A preview won't change anything about their problem. Knowing who engaged will.
AuthoredUp's Business plan at $12.46 per profile costs less than our Agency plan. In exchange, voices aren't calibrated separately and leads aren't exported.
Choose AuthoredUp if your problem is how your posts look.
Choose Kast if your problem is knowing what they bring in.
Seven-day free trial, card required, no commitment.
Start for free