Prices checked on September 23, 2026 at supergrow.ai/pricing.
Supergrow is one of the fastest-growing LinkedIn tools. Its core pitch, which they call Content DNA, is to learn how you write so it can produce drafts that sound like you, then repurpose existing content into several posts.
It's the closest competitor to Kast in intent, and the furthest from it on what happens after you post.
Starter at $19 a month, Pro at $39, Teams at $139 for four accounts. Billed annually: $$16,31 and $133. A seven-day trial on every plan.
Kast is 29 €, 49 € and 149 €, also with a seven-day trial.
On the entry plan, Supergrow is about ten euros cheaper. On the team plan, the two are level.
| Supergrow | Kast | |
|---|---|---|
| Paid entry plan | $19 a month | 29 € a month |
| Mid-tier plan | 39 $ | 49 € |
| Team plan | $139 for 4 accounts | 149 € for the Agency plan |
| Voice calibration | Content DNA | Plume, from your projects and your posts |
| Content repurposing | Yes, from videos and articles | From your projects and folders |
| Carousels | Yes | No |
| Scheduling | Calendar and queue | LinkedIn and X calendar |
| Score before publishing | No | Four criteria, targeted rewrite |
| Engagement capture | No | Yes, job title and company |
| Export for prospecting | No | Lemlist, Instantly, CSV |
| Platforms | LinkedIn, X | LinkedIn and X, Threads coming soon |
Supergrow assumes the bottleneck is production. You don't have time, so the tool turns a video call, an article or an idea into several posts, in your style.
Kast assumes the bottleneck is further down the line. You already produce, but you don't know whether what you post is any good, or what it brings you. Hence the score on four criteria before you publish, and capturing the people who engage afterward.
Both readings hold up. Yours depends on where you are: if your content calendar is empty, Supergrow is the better fit. If your content calendar is full but your sales calendar is empty, Kast.
Volume, by repurposing one long piece of content into several posts.
Carousels, which we don't make.
The entry price, which is lower than ours.
The score before publishing, with the same grid applied to every post: hook, structure, CTA, voice. Each criterion comes back with the flaw it found and a targeted rewrite.
Engagement capture from a post's URL, yours or a competitor's, with each person's job title and company, then export to Lemlist, Instantly or a file.
Six free tools you can use without an account, including the post analyzer and the generic content detector.
Supergrow turns their recorded meeting into four posts. It's the right tool.
Production isn't their problem.
Supergrow's Teams plan at $139 covers four accounts. Our Agency plan at 149 € gives each person their own workspace with separate calibration, and exports leads to your outreach tool.
Choose Supergrow if you want to post more without giving up your evenings.
Choose Kast if you already post and want to know who's reading you.
Seven-day free trial, card required, no commitment.
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