
Costs and pricing
Part of 5 licence units that quietly change SEO tools costs
When to compare SEO tools licence tiers and seat pricing
A practical SEO tools cost guide for English buyers: how to read licence tiers, seat costs and API charges, with a checklist for comparing quotes before you commit.
What to take away
- GOV.UK's G-Cloud buyers' guide sets out how public bodies buy cloud services with published pricing, a useful template for private buyers too.
- The answer to when to compare tierswhen base subscription, extra seats and usage or API overages all move at once.
- Moz publishes its API pricing openly, so you can benchmark per-row or per-call charges before signing.
- Semrush markets a small-teams plan, which shows how vendors tier features by team size rather than by raw data volume.
- Build a one-page comparison sheet before any demo, or vendors will steer the conversation.
Start with the pricing model, not the price
Two tools at £99 a month can cost wildly different amounts over a year. The model matters more than the headline rate. Ask whether you pay per seat, per project, per tracked keyword or per API call.
Pricing Models Compared
Per seat
- Best for
- Stable teams
- Punishes
- Rotating staff
- Cost driver
- Named users
Per project
- Best for
- Fixed scope
- Punishes
- Growing scope
- Cost driver
- Active projects
Per keyword
- Best for
- Stable rankings
- Punishes
- Seasonal campaigns
- Cost driver
- Tracked keywords
Per API call
- Best for
- Automation
- Punishes
- High volume
- Cost driver
- Calls made
Per-seat pricing punishes agencies with rotating staff. Usage pricing punishes seasonal campaigns. Understanding that split is the core of any honest comparison of costs and budget lines.
Public sector buyers already have a template for this. The G-Cloud buyers' guide explains how to compare cloud services on published pricing and call-off terms, and the same discipline works for a private company buying an SEO platform.
What sits inside a typical annual licence
Most vendors bundle four things. Knowing which you actually use stops you paying for a tier you do not need.
What a Mid-Tier Licence Covers
- £400monthly mid-tier plan
- £120monthly audit credits
- 2xquarterly audit usage
- 4bundled licence components
- Rank tracking
- usually capped by keyword count or by location checks per day.
- Site audit crawl credits
- monthly limits reset, but unused credits rarely roll over.
- Seat count
- named users versus concurrent logins is a real cost difference.
- API or export allowances
- the hidden line that grows fastest.
For example, a team paying £400 a month for a mid-tier plan might find that £120 of that covers audit credits it uses twice a quarter. That is an illustrative figure, not a market average.
How seats, overages and fair use change the bill
Fixed seats versus flexible access
Named seats suit a stable in-house team. Concurrent or shared logins suit agencies with contractors. Vendors rarely advertise the difference, so ask directly in writing.
Overage charges and fair-use clauses
Many contracts include a fair-use cap that lets the vendor throttle crawling or API calls. Read that clause before you plan a migration around it.
One worked example: a five-seat stack with a £99 monthly base covering 1,500 tracked keywords, plus five seats at £25 each and 500 extra keywords at £0.10 each month. The monthly bill is £274. Those figures are illustrative, not market averages.
Over 12 months that stack costs £3,288. Over 24 months it costs £6,576 before any renewal uplift. A 7 per cent uplift in year two takes the second year to £3,518 and the two-year total to £6,806.
API and usage costs deserve their own line
API pricing is where budgets break. Per-call charges look trivial until an automated rank tracker runs daily across thousands of keywords.
Moz publishes API pricing openly, which makes it a reasonable benchmark when a vendor refuses to share usage rates. Compare on the same unit: cost per keyword per month, not cost per plan. Moz bills by monthly row allowance rather than by seat, so the figure to record is cost per thousand rows.
Smaller teams often get better value from a packaged plan than from raw API access. Semrush describes its tools for small teams and startups as a bundled offering, which is worth checking against your own seat and project count.
Semrush's Pro tier is listed at $139.95 a month on the US pricing page, with GBP prices shown separately for UK buyers. Prices change, so note the date you checked.
If you want to build the maths properly, the budget template and source notes show which figures to record and where each number should come from.
UK buying considerations
UK buyers pay VAT on top of most quoted licence prices. The standard rate is 20 per cent, and quotes from overseas vendors often exclude it, so ask whether a figure is inclusive.
Check the invoicing currency too. A vendor billing in dollars passes FX risk to you, so ask for GBP invoicing with the rate fixed for the term.
Public bodies work to published rules. G-Cloud and the Digital Marketplace set the call-off terms, including a maximum contract length, and suppliers must hold published prices for the life of the call-off. Private buyers can borrow that discipline by asking for a fixed price for the term.
Procurement checklist before you sign
Work through this list in order. It takes about an hour and saves far more.
- Write down your keyword count, location count and refresh frequency.
- Count seats by role, not by headcount. Some people need read-only access.
- Estimate monthly API or export volume, then multiply by twelve.
- Ask for the overage rate in writing, including any fair-use cap.
- Check the notice period and whether the price is fixed for the term.
- Confirm what happens to historical data if you leave.
- Request a single quote covering base, seats and usage.
- Compare every quote against the same unit of work.
Add a twelve-month total column and a second-year column. Renewal uplifts are common and rarely mentioned at the demo stage.
Where costs go wrong
Overspend usually traces to a tier bought for one monthly feature and API volume ignored until the first invoice. Both are visible before you sign if you ask for the units in writing.
The quieter failure is overlap: two rank trackers, two crawlers, one team. Audit the stack before any renewal.
Common questions
Is it cheaper to buy one bundled platform or separate tools?
Bundled plans usually win below about five users, because seats and support are included. Past that point, separate specialist tools often cost less, provided you track API usage carefully.
How often should we review SEO tool spending?
At least twice a year, and always before renewal. Seat counts drift as staff change, and unused tiers rarely get downgraded without a prompt.
Do annual contracts always beat monthly billing?
Not always. Annual billing typically discounts the rate but locks the tier. If your keyword volume is uncertain, monthly costs more per month but keeps you flexible.
What should we ask for in a written quote?
Base fee, seat price, overage rate, fair-use limits, notice period and renewal terms. If a vendor will not put overage rates in writing, treat that as a risk.



