Sellerboard review: excellent arithmetic, and it is only as good as what you feed it

The honest short version

Sellerboard does one job better than almost anything else available to an Amazon seller: it nets Amazon's fees, your landed costs, refunds, storage, promotions and advertising into a per-unit profit figure you can actually act on. Seller Central will tell you what you sold. Sellerboard tells you what you kept.

It is also inexpensive to a degree that makes the price comparison almost irrelevant, and it offers a one-month free trial with no card required. If you are running a private-label business without a real profit ledger, the correct next step is to sign up for the trial and stop reading comparison articles.

What a review owes you beyond that is the parts that are hard to see before you commit, and there are three:

• Its accuracy is entirely a function of the cost data you enter, and the sensitivity is sharper than people expect.
• Its PPC automation is genuinely automation, not reporting with a recommendation panel — which is worth knowing because a lot of published descriptions still say otherwise.
• What it optimises toward is a profit constraint, which is the right default and is not the same thing as a strategy.

None of those are reasons not to buy it. They are the things to have understood on day one rather than in month six.

Seven inputs decide whether the number is true

A profit dashboard is an arithmetic engine. The arithmetic is not in doubt; the inputs are. Before trusting a single figure, make sure all seven of these are loaded and current, because any one of them missing quietly inflates every margin the tool shows you.

• Landed cost of goods — unit cost plus freight, duty and any tariff, per batch, dated. Not the factory invoice line alone.
• Inbound shipping to Amazon — prep, labelling and the leg into the fulfilment centre, per unit.
• Storage — monthly storage on slow movers, and the long-term surcharges that arrive twice a year and surprise everyone.
• Returns and their disposition — not just the refunded revenue, but whether the unit came back sellable, and the processing cost when it did not.
• Promotions and coupons — including the redemption fee, which is easy to omit and lands on exactly the SKUs you are pushing.
• Advertising — allocated to the product rather than pooled at account level.
• Everything outside Amazon — samples, photography, agency or software fees, warehousing before the shipment leaves. Most tools cannot see these, and most sellers never enter them.

Getting the first one right is where the real work is, and it is genuinely laborious for anyone with a wide catalogue or frequent reorders at different costs. That labour is the actual price of a profit tool. The subscription is trivial by comparison, and the businesses that abandon these tools almost never do so because the software failed — they do so because the cost data went stale and nobody trusted the dashboard any more.

How wrong a small cost error makes your bidding

This is the part nobody quantifies, and it matters because sellerboard's advertising automation bids against a break-even ACOS it calculates from these inputs. If the inputs drift, the target drifts with them, and the bidding faithfully executes a wrong number.

Here is a worked example with every assumption on the table. Take a product selling at $30. Amazon's referral fee at 15% is $4.50 and fulfilment is $5.00, so $9.50 of Amazon fees. Your true landed cost is $12.00.

• True profit before advertising is $30.00 − $9.50 − $12.00 = $8.50, which is 28.3% of the sale price. That is your real break-even ACOS.
• Enter the cost 10% low, at $10.80, and the computed profit becomes $9.70 — 32.3%.

A ten per cent error in one input has moved the break-even target by four percentage points of ACOS. Every sale won inside that four-point band is a sale the system believes is profitable and is not.

Scale that to a real book to see why it is worth an afternoon of data hygiene. Across the 47 brands we manage, Amazon search spend from 1 May 2026 onward came to $10,243,379. Four percentage points of ACoS misjudged across a base that size is several hundred thousand dollars sitting on the wrong side of break-even — and on a single account at $30,000 a month it is still four figures a month. From one stale cost field.

None of this is a flaw in sellerboard. It is the honest consequence of any profit-driven automation anywhere, including ours, and the fix is procedural rather than technical: update landed costs every time a shipment lands, and diary a quarterly reconciliation. A profit tool with current data is one of the highest-return subscriptions in Amazon software. The same tool with year-old costs is a confident, wrong number that you will act on.

The PPC side is real automation, and here is where it stops

A common description of this product — that it reports on advertising but does not run it — is out of date. Its own pages describe automated bidding toward goals such as a new product launch, organic sales support or profit maximisation; a calculated break-even ACOS with per-keyword bid optimisation against it; harvesting well-performing keywords into other campaigns; filtering out poor performers once they hit thresholds you define; and an autopilot mode that applies changes automatically, alongside a manual mode where recommendations wait for your approval.

That is a competent, genuinely useful automation layer, and for a seller who wants profit-anchored bidding without a separate subscription it is remarkable value inside a tool that already costs less than most people's daily ad spend.

Where it stops is worth stating precisely, because the boundary is a design decision rather than a shortcoming. Break-even ACOS is a constraint, not a strategy. It answers "should this click be bought at this price" extremely well. It does not answer:

• Whether a term is worth losing money on for a quarter to hold position in a category you intend to own.
• Whether the halo — organic rank lifted by paid volume — justifies exceeding break-even on a launch.
• Whether two of your own campaigns are competing for the same phrase and inflating your own cost per click.
• Whether new-to-brand customers are worth more than the first order suggests, which is a lifetime-value judgement no ACOS target contains.

Those are the calls a person makes. Software that runs unattended, ours included, will optimise beautifully inside whatever structure it was given and will not tell you the structure is wrong.

Judging the trial, and judging the reviews

The trial is a month with no card required, which is generous. It is also, for this particular product, exactly the wrong length to answer the question people try to answer with it.

A month cannot show you a full returns tail, cannot show you long-term storage surcharges, and cannot show you a seasonal swing. So do not spend the trial trying to validate the profit numbers — you do not yet have enough elapsed time for them to be validated. Spend it on the two things a month can genuinely test:

• Data-entry ergonomics. How painful is it to load costs for your catalogue, and how painful will it be to update them after every shipment? That friction, not the feature set, decides whether you are still using this in a year.
• Whether the numbers reconcile. Take one week, one product, and tie the tool's figure back to a Seller Central payout by hand. If it reconciles once, the arithmetic is sound and everything after that is input quality.

On reviews generally: we are not going to quote star ratings or review counts here, because the major review platforms block automated reading and figures lifted from search snippets have repeatedly turned out to contradict the live listings. The more useful discipline is to date every review you read and check it against the vendor's current product page — a habit that would have caught the reporting-only description above, and one that applies to what we publish as much as to anyone else.

Read the contract, and think about what you would leave behind

Sellerboard's commercial terms are among the friendliest in this category: a one-month free trial, no card, and cancel-anytime language on the site. So the contract questions here are less about escape and more about ownership of the thing you have built.

The asset is not the dashboard. It is your cost history — every landed cost, dated, per batch, across every SKU you have ever sold. That file is months of accumulated work and it is the input to every profit decision you will make in future, on this tool or any other. Before you commit a catalogue to any profit platform, get a clear answer to three questions:

• Can you export cost history, in bulk, in a format another system can read?
• Does the export include the dated batch structure, or only the current cost?
• How long is the data retained after cancellation, and can you retrieve it after the account closes?

Beyond that, the usual: get written notice of any fee change from any vendor including us; check what an annual commitment does to your flexibility; and ask what happens on a change of control, because this category consolidates constantly — InventoryLab became part of Threecolts Seller 365, ChannelAdvisor became Rithum, Kenshoo became Skai.

For contrast at the heavier end, Quartile publishes terms setting a one-year initial period that renews automatically for successive one-year periods, requiring written notice of non-renewal at least sixty days before expiry, with fees due in advance and described as non-cancellable and non-refundable. That they publish it at all is to their credit and almost nobody in this category quotes any vendor's terms — which is strange, because a term of that shape leaves only part of the year in which the decision to leave is actually available to you.

Who should buy it, and where Dr. PPC is a different purchase

Buy sellerboard if you sell private label on Amazon and do not currently have a trustworthy per-unit profit figure. That is most sellers. It is inexpensive, the arithmetic is sound, the automation is real, and there is essentially no commercial risk in trying it. We would recommend it to a friend without hesitation, and we would tell them the same thing this page has: the tool is easy, the cost data is the work.

Look elsewhere, or add something, if your problem is not measurement. If you already know your margins and the issue is that nobody has the hours to act on what the dashboard says every week, another dashboard will not fix it.

Where Dr. PPC sits is deliberately not head-to-head. We are $300 a month plus 3% of ad spend, capped at $2,500 a month, month-to-month, first 30 days free, with Orbit — our software suite — included. An AI agent runs the advertising daily and operators from a $500M+ Amazon team supervise it. Compared to a $39 subscription that is not a price comparison; it is a decision about whether you are buying software or buying the work. Plenty of sellers should run both, and the bills barely interact.

Two places to go next, only if they describe you. If what you want is the profit ledger extended into inventory decisions — restock timing, storage exposure, fee misclassification and reimbursements — that is Dr. Stock, not an advertising product. And if you are weighing whether to add a dedicated advertising suite on top, our review of Helium 10 covers the option most sellers consider next.

Dr. PPC, Dr. Stock and Orbit are products of Full Circle, a full-service Amazon management company with more than $500M in managed revenue across 100+ brands.