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The Marsell blog

Marsell vs Polsia: an AI that runs your company or one that runs your marketing

Polsia builds, codes and markets a whole company, from $20 a month in credits. Marsell runs one business's marketing and selling. How they differ, and who fits.

By Ilya Arbabi, 11 November 2026

Polsia is an AI that runs a whole company. It researches your idea, builds the website or app, takes payments, posts to social media, sends cold emails and runs Meta ads, working through a nightly cycle of tasks paid for in credits, from $20 a month. Marsell does one part of that, the marketing and selling of a business you already run, and does more of it: a monthly and weekly plan, pictures, short videos and films in your brand's look, more networks, careful outreach, and ads from your own ad account. If you are starting from an idea and want the product built as well, Polsia covers ground Marsell doesn't. If you have a business and want its marketing run with your own accounts and your own limits, Marsell is built for that, though it is new.

Everything about Polsia below comes from Polsia's own pages, its help centre and its terms, read on 13 November 2026.

What Polsia is in 2026

Polsia's home page sums it up as "AI That Runs Your Company While You Sleep": it plans your roadmap, ships your code, runs your ads, replies to customers, closes your deals and posts your tweets. You describe an idea or an existing business. Polsia researches the space and sets up the company, with a free yourname.polsia.app site unless you keep your own website, and a nightly cycle proposes and runs tasks. You can also chat with your company to ask questions or start work, and talk to it over iMessage or WhatsApp where those are offered.

For the product, it writes and changes the code of your app or site, hosts it, gives it a database and accepts your customers' payments through Stripe.

For marketing, its help centre describes:

Pricing. Polsia's help centre lists three plans for new subscribers. Standard is $20 a month with 20 credits and one company, without Meta ads. Pro is $50 a month with 50 credits, up to three companies and Meta ads. Max is $100 or $200 a month with 100 or 200 credits and up to ten companies. A credit pays for one agent run, such as a code change, an email or an ad; a social post costs 1 to 3 credits, depending on whether Polsia generates an image or a video for it. New annual plans get 20% off the first year. There is no free trial any more, but free accounts get starter credits. Polsia does not offer refunds; a credit spent on a task that failed on Polsia's side comes back on its own.

Two fees sit outside the plans. On ads, a platform fee of 20% is included in your daily budget. On payments your customers make through Polsia, it keeps 3%, and the money waits 31 days before it can be paid out.

Where Polsia is stronger

What to know before you compare

Some of Polsia's choices differ from Marsell's, and its own terms and help pages spell them out:

None of this is hidden; it is how Polsia is designed. It matters most if you already run a business with its own ad account and customers.

What Polsia leaves to other tools

How Marsell's loop works

Marsell runs the marketing as a loop for a business that already exists:

  1. You give it a link to your business (or a line about it, or your own AI sets it up over MCP). It reads your pages, products, public mentions and the way you write, and you correct what it got wrong.
  2. It plans the month and the week.
  3. It writes the posts and makes pictures, carousels, short videos (motion graphics drawn in code, or AI video) and films in your brand's look, in any of 42 languages.
  4. It publishes to Instagram, TikTok, YouTube, X, LinkedIn, Threads, Facebook, Pinterest and Bluesky, plus Telegram and Google Business Profile, from accounts you connect. It learns each kind of post from your first few answers, then posts on its own within daily limits. Every post has a 24-hour undo.
  5. It looks for buyers in Reddit threads, communities, directories, creators, search and AI answers, and emails prospects one by one from mailboxes it sets up: one checked first email each, one approach a month, and a no is final. It runs small ad tests from your own ad account, and ad spend moves only when you say so.
  6. It builds and hosts pages, counts visits without cookies and reports what worked.

Polsia and Marsell side by side

PolsiaMarsell
Built forFounders who want an AI to build and run a companyA business that wants its marketing and selling run
Builds your productYes: code, hosting, a database, paymentsNo; builds and hosts marketing pages
Social publishingX, Instagram, Facebook, TikTok, YouTube Shorts, PinterestInstagram, TikTok, YouTube, X, LinkedIn, Threads, Facebook, Pinterest, Bluesky, Telegram, Google Business Profile
Cold emailOne email per lead, no follow-up sequences; up to 1 a run on a shared domain, up to 5 on a domain bought through PolsiaOne checked first email per prospect from mailboxes Marsell sets up; one approach a month; a no is final
Paid adsMeta ads through Polsia's own ad account, on Pro and Max; a 20% fee included in the budgetSmall two-ad tests and boosts from your own ad account; every spend asks first
Communities and creatorsNot describedReddit threads, communities, directories, creators
Your content and AI trainingAllowed by its termsNever
PriceStandard $20, Pro $50, Max $100 or $200 a month, in credits$49 to $799 a month, in tokens
Trial and refundsNo free trial (starter credits on a free account); no refundsNo free plan or trial; the first look at your link is free
StatusGenerally availableNew

Who should pick which

Pick Polsia if

Pick Marsell if

Where Marsell fits

Marsell is an AI marketer that markets and sells a business on autopilot. It learns each kind of work from your first few answers, then does it on its own within daily limits. Every post has a 24-hour undo, and you can steer or pause it any time. Money is the exception: ad spend moves only when you say so. What it makes is yours, and your content never trains AI models. It is new, and its first customer is Marsell itself.

Plans are Solo $49, Core $169, Growth $399 and Network $799 a month, each with monthly tokens for the model and media work, and every paid action shows its price in tokens first. Ad spend is billed by Meta or Google to your own ad account and never comes out of your tokens. There is no free plan or trial, but the first look at your link is free.

FAQ

How much does Polsia cost?

Standard is $20 a month with 20 credits and one company. Pro is $50 a month with 50 credits, up to three companies and Meta ads. Max is $100 or $200 a month with 100 or 200 credits and up to ten companies. A credit pays for one agent run, and ads carry a 20% platform fee inside the daily budget.

Does Polsia have a free trial?

Not any more. Its help centre says new subscribers are charged when they subscribe, and free accounts get starter credits to try it. Polsia does not offer refunds.

Whose ad account do Polsia's ads run on?

Polsia's own. Its terms say campaigns run through a platform advertising account it manages, not your personal one, and its help centre says you don't need a Meta account. Marsell runs ads from your own Meta or Google Ads account.

Can Marsell build my app like Polsia?

No. Marsell builds and hosts marketing pages, but it doesn't write or host your product.

Is there a free trial of Marsell?

No. There is no free plan or trial, but the first look at your link is free, and a demo shows the whole app at work on a made-up business.

Sources