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Pay for what you use

Monthly free allowances, with optional paid usage and spending limits you control.

Start free View rates
  • Free allowances every month
  • Paid usage is opt-in
  • One bill for everything

Estimate your cost

Choose your products and enter your monthly usage.

500 screenshots free each month

100 PDFs free each month

250 templated images free each month

QR codes are free: they are rate limited, never charged. See the Render rates

Try an example (a month, before VAT)

10,000 Render screenshots£14.2510,000 Render PDFs£14.85100,000 Render PDFs£77.9310,000 Finance validations£19.5010,000 Analytics recordings£7.50

Monthly estimate

£0.00excl. VAT

Your monthly free allowances are included.

Enter a month of usage, or try an example.

How billing works

Nothing you enter is stored, reserved or charged.

Worked examples

Priced from the published rates, as a statement prices them. Loading one replaces every quantity in the calculator.

A side project

1,000 Render screenshots

£0.75a month, before VAT

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How it adds up

Ironfang Render

  • Screenshots£0.75

    1,000 used: 500 free, 500 billable

    • First 10,000: 500 at £1.50 per 1,000, £0.75
Ironfang Render subtotal£0.75
Total before VAT£0.75

Balances under £5.00 are carried forward rather than collected, so on its own this month would not be charged yet.

A busy CI pipeline

150,000 Rig interactions

£65.75a month, before VAT

Load example
How it adds up

Ironfang Rig

  • Interactions£65.75

    150,000 used: 5,000 free, 145,000 billable

    • First 100,000: 100,000 at £0.50 per 1,000, £50.00
    • Next 900,000: 45,000 at £0.35 per 1,000, £15.75
Ironfang Rig subtotal£65.75
Total before VAT£65.75

At £5.00 or more, a month's balance is collected with any tax in one payment after the month closes.

A growing product team

Usage on Render, Finance, Audit, Analytics and Rig

£100.37a month, before VAT

Load example
How it adds up

Ironfang Render

  • Screenshots£23.55

    20,000 used: 500 free, 19,500 billable

    • First 10,000: 10,000 at £1.50 per 1,000, £15.00
    • Next 90,000: 9,500 at £0.90 per 1,000, £8.55
  • PDFs£4.35

    3,000 used: 100 free, 2,900 billable

    • First 10,000: 2,900 at £1.50 per 1,000, £4.35
  • Templated images£1.75

    2,000 used: 250 free, 1,750 billable

    • First 10,000: 1,750 at £1.00 per 1,000, £1.75
  • Video, 720p or square£0.72

    600 used: 120 free, 480 billable

    • First 10,000: 480 at £1.50 per 1,000, £0.72
Ironfang Render subtotal£30.37

Ironfang Finance

  • Validations£9.50

    5,000 used: 250 free, 4,750 billable

    • First 10,000: 4,750 at £2.00 per 1,000, £9.50
  • Generated invoices and credit notes£5.60

    1,500 used: 100 free, 1,400 billable

    • First 10,000: 1,400 at £4.00 per 1,000, £5.60
Ironfang Finance subtotal£15.10

Ironfang Audit

  • Page captures£17.40

    3,000 used: 100 free, 2,900 billable

    • First 10,000: 2,900 at £6.00 per 1,000, £17.40
Ironfang Audit subtotal£17.40

Ironfang Analytics

  • Kept recordings£30.00

    25,000 used: 5,000 free, 20,000 billable

    • First 50,000: 20,000 at £1.50 per 1,000, £30.00
Ironfang Analytics subtotal£30.00

Ironfang Rig

  • Interactions£7.50

    20,000 used: 5,000 free, 15,000 billable

    • First 100,000: 15,000 at £0.50 per 1,000, £7.50
Ironfang Rig subtotal£7.50
Total before VAT£100.37

Plus 1,000 QR codes, which are free.

At £5.00 or more, a month's balance is collected with any tax in one payment after the month closes.

Rates by product

Every service has its own monthly free allowance. Past it, graduated bands apply: each band prices only the usage within it, and band sizes count paid units after the free allowance. A rate is a unit rate, not a bundle or a minimum purchase. Prices are in pounds sterling and exclude VAT.

These rates price usage from 1 November 2026. Rate catalogue 2026-11-1.

Ironfang Render

Screenshots, PDFs, templated images, video and site previews.Free each month: 500 screenshots, 100 PDFs, 250 templated images and 3 more allowancesShow rates

  • Screenshots

    Each screenshot returned or stored.

    Free each month500 screenshots

    Then£1.50 per 1,000 screenshots

  • PDFs

    Each PDF returned or stored, every page within the page limit included.

    Free each month100 PDFs

    Then£1.50 per 1,000 PDFs

  • Templated images

    Each image rendered from a template.

    Free each month250 templated images

    Then£1.00 per 1,000 templated images

  • Video, 720p or square

    Seconds of 720p or square video output, rounded up per video. Up to 60 seconds per video.

    Free each month120 output seconds

    Then£1.50 per 1,000 output seconds

  • Video, 1080p

    Seconds of 1080p landscape or vertical video output, rounded up per video. Up to 60 seconds per video.

    Free each month120 output seconds

    Then£2.00 per 1,000 output seconds

  • Site previews

    Seconds of site preview output, rounded up per video. Up to 60 seconds per video.

    Free each month120 preview seconds

    Then£4.00 per 1,000 preview seconds

  • QR codes

    Free, and rate limited.

    Free each monthFree, rate limited

    ThenNever charged

Volume pricing
Screenshots, after 500 free each month
Paid units after the free allowanceRate per 1,000
First 10,000£1.50
Next 90,000£0.90
Next 900,000£0.65
Above 1,000,000£0.45
PDFs, after 100 free each month
Paid units after the free allowanceRate per 1,000
First 10,000£1.50
Next 90,000£0.70
Next 900,000£0.50
Above 1,000,000£0.40
Templated images, after 250 free each month
Paid units after the free allowanceRate per 1,000
First 10,000£1.00
Next 90,000£0.70
Next 900,000£0.50
Above 1,000,000£0.40
Video, 720p or square, after 120 free each month
Paid units after the free allowanceRate per 1,000
First 10,000£1.50
Next 90,000£1.10
Above 100,000£0.80
Video, 1080p, after 120 free each month
Paid units after the free allowanceRate per 1,000
First 10,000£2.00
Next 90,000£1.50
Above 100,000£1.10
Site previews, after 120 free each month
Paid units after the free allowanceRate per 1,000
First 10,000£4.00
Next 90,000£3.00
Above 100,000£2.00
What counts
Screenshots
Counted when: the image is returned or stored.
Not counted: Cache hits, replays, rejected input, render failures and timeouts.
PDFs
Counted when: the PDF, within the page limit, is returned or stored.
Not counted: Cache hits, replays, rejected input, render failures and timeouts.
Templated images
Counted when: the image is returned or stored.
Not counted: Cache hits, replays, rejected input, render failures and timeouts.
Video, 720p or square
Counted when: the encoded video is available. Seconds are rounded up per video.
Not counted: Failed or cancelled encodes.
Video, 1080p
Counted when: the encoded video is available. Seconds are rounded up per video.
Not counted: Failed or cancelled encodes.
Site previews
Counted when: the encoded preview is available. Seconds are rounded up per video.
Not counted: Failed or cancelled captures.
QR codes
Counted when: never. QR codes are free, within the rate limits.
Not counted: Any QR code.
Operational limits

The same on every account. Paying more never lifts them.

  • PDFs of up to 100 pages
  • 2 browser operations at a time per account
  • Up to 1,000 queued jobs per account

About Ironfang Render

Ironfang Finance

E-invoice validation, and generated invoices and credit notes.Free each month: 250 validations and 100 generated documentsShow rates

  • Validations

    Each validation that reaches a valid or invalid result.

    Free each month250 validations

    Then£2.00 per 1,000 validations

  • Generated invoices and credit notes

    Each generated invoice or credit note that passes its own validation. The readable PDF is included.

    Free each month100 generated documents

    Then£4.00 per 1,000 generated documents

Paid usage of Ironfang Finance needs an approved UK or EU business profile on the account. The free allowances are open to everyone.

Volume pricing
Validations, after 250 free each month
Paid units after the free allowanceRate per 1,000
First 10,000£2.00
Next 90,000£1.50
Next 900,000£1.00
Above 1,000,000£0.75
Generated invoices and credit notes, after 100 free each month
Paid units after the free allowanceRate per 1,000
First 10,000£4.00
Next 90,000£3.00
Next 900,000£2.00
Above 1,000,000£1.50
What counts
Validations
Counted when: the rules ran and the result is valid or invalid.
Not counted: Malformed requests, formats refused before processing, timeouts, an unavailable validator and internal errors.
Generated invoices and credit notes
Counted when: the generated invoice or credit note passes its required validation.
Not counted: Generation that fails that validation, and internal errors.
Operational limits

The same on every account. Paying more never lifts them.

  • XML of up to 5 MiB
  • Hybrid PDFs of up to 20 MiB
  • Hybrid PDFs of up to 200 pages
  • Up to 100 documents in one batch

About Ironfang Finance

Ironfang Audit

Signed, timestamped evidence of the pages on a website.Free each month: 100 page capturesShow rates

  • Page captures

    Each page whose evidence is captured, signed, timestamped and stored. Kept for 30 days as standard.

    Free each month100 page captures

    Then£6.00 per 1,000 page captures

  • Extended evidence retention

    Evidence kept beyond the standard retention, quoted as a fixed price before you buy it.

    Free each monthNone

    Then£0.10 per GB-month, quoted before you buy

Extended retention is quoted as a fixed price for the evidence you choose, before you buy it, and is added to the month you buy it in.

Volume pricing
Page captures, after 100 free each month
Paid units after the free allowanceRate per 1,000
First 10,000£6.00
Next 90,000£4.50
Above 100,000£3.25
Extended evidence retention
Paid units after the free allowanceRate per GB-month
Every unit£0.10
What counts
Page captures
Counted when: the page evidence is finalised and stored.
Not counted: Pages that fail to capture, pages skipped by robots rules, and crawl discovery.
Extended evidence retention
Counted when: the new retention deadline is committed.
Not counted: Quotes that are not bought.
Operational limits

The same on every account. Paying more never lifts them.

  • Up to 500 URLs in a list audit
  • Evidence kept for 30 days as standard

About Ironfang Audit

Ironfang Analytics

Session recording and replay.Free each month: 5,000 recordingsShow rates

  • Kept recordings

    Each recording kept: playable, and not discarded as empty or too short. Kept for 28 days as standard.

    Free each month5,000 recordings

    Then£1.50 per 1,000 recordings

Volume pricing
Kept recordings, after 5,000 free each month
Paid units after the free allowanceRate per 1,000
First 50,000£1.50
Next 450,000£1.00
Above 500,000£0.70
What counts
Kept recordings
Counted when: the recording is kept: it became playable and was not discarded.
Not counted: Bots, sampled-out visitors, excluded addresses, recordings refused or never playable, discarded recordings, and resuming a recording already counted.
Operational limits

The same on every account. Paying more never lifts them.

  • Recordings stop at 100 MiB by default
  • Recordings of up to 100 MiB at most
  • Recordings of up to 60 minutes
  • Recordings kept for 28 days as standard
  • Up to 10 GiB of recordings kept per account

About Ironfang Analytics

Ironfang Rig

Inboxes, callbacks and mocks for integration tests.Free each month: 5,000 interactionsShow rates

  • Interactions

    Each inbound email, callback or mock exchange recorded as an event.

    Free each month5,000 interactions

    Then£0.50 per 1,000 interactions

Volume pricing
Interactions, after 5,000 free each month
Paid units after the free allowanceRate per 1,000
First 100,000£0.50
Next 900,000£0.35
Above 1,000,000£0.25
What counts
Interactions
Counted when: an inbound email, callback or mock exchange is recorded as an event.
Not counted: CLI polling, event reads, replays, assertions, delivery or storage failures on our side, and retries with the same idempotency identity.
Operational limits

The same on every account. Paying more never lifts them.

  • Up to 50 active runs per account

About Ironfang Rig

How usage is counted

A unit is counted when its result is delivered. These rules apply to every product; each product lists its own under What counts.

  • Only finished work counts. Rejected input, failures, timeouts and work cancelled before its output are not charged.
  • A cached result, a replay or a retried request with the same idempotency key returns the earlier result and is not counted again.
  • Work belongs to the month it was started in, whenever it finishes.
  • Only the product you call counts. When one Ironfang product uses another to do its work, such as the readable PDF of a generated invoice, you are not charged twice.

Plans

Ironfang Agent is sold on monthly plans rather than unit rates: each plan includes a number of leads each month for one monthly fee, on the same Ironfang bill as everything else.

Ironfang Agent

WhatsApp follow-up for enquiries

About Ironfang Agent

  • Free

    £0.00a month

    10 leads a month once you add a card

    Stops there until next month

    Without a card: try it with up to 3 of your own test contacts

  • Starter

    £99.00a month

    200 leads included each month

    Then £0.50 per lead

  • Growth

    £199.00a month

    600 leads included each month

    Then £0.50 per lead

  • Scale

    £349.00a month

    1,500 leads included each month

    Then £0.50 per lead

Prices exclude VAT. A plan is charged by the month with your usage: moving up starts at once, moving down from the next month. Choose and change your plan in the portal.

Billing questions

One account and one monthly invoice for every product, within limits you set. Paid usage stays off until someone with billing rights on the account switches it on.

Do I need a payment card to start?
No. An account needs no card to start. Every account has the same free allowances on every product, renewed each month, and free usage is never charged; Ironfang Agent starts on its Free plan. The free tools on this site need no account at all and are not counted against one.
What happens when I use my free allowance?
That kind of work stops until the next month, and nothing is charged. Paid usage never starts on its own: to keep going, someone with billing rights switches on Pay as you go in the portal, with a payment method and a monthly limit. The free allowances stay the same, and only the usage past them is charged, at the graduated rates on this page.
Can I cap my monthly usage?
Yes. Pay as you go needs a monthly usage limit for the account, set before VAT, and you can set a limit for any product as well. Paid work is admitted only while every limit it falls under has room for it, and free allowances use none of a limit. When a limit is reached, paid work stops until you raise it or the next month starts. A limit caps the new usage of the month; a payment can also collect a balance carried from earlier months, and tax. Until a payment from the account has succeeded, the account can also owe at most £20.00 before VAT for paid usage, counting this month's paid usage and any balance not yet paid, whatever your own limits; after that, only your own limits apply.
When do free allowances reset?
On the first day of each calendar month, UTC. Each service has its own allowance, and unused allowance does not carry over to the next month or move to another service.
When will my card be charged, and what does the £5.00 threshold mean?
Usage is settled after each calendar month (UTC) closes. The card is charged only when the account's uncollected balance, before VAT, is at least £5.00; then the whole balance is collected with its tax in one payment. While the account is open, a balance below £5.00 is carried forward to a later settlement and the card is not charged. A carried balance is not overdue, and it is never raised to £5.00: this is a threshold for collecting, not a minimum fee. Going past £5.00 during a month charges nothing; money is only collected when a month is settled. When an account is closed, a balance below £5.00 is written off if no payment from the account ever failed, was disputed or could not be collected; any other balance is collected.
How are VAT and billing details handled?
Every price on this page excludes VAT. VAT, or another tax where one applies, is calculated on each invoice by our payment provider from the billing address on the account, and shown on its own line. Each payment has one invoice covering every product on the account, with a line for each month and meter it charges, and each month keeps its own statement: the quantities, the free allowance, the bands and the rates in force when the month began.
What happens if a payment fails?
New paid work stops at once, and free allowances keep working. Updating your payment method charges it to the new one straight away, and our payment provider also retries it. If it has failed and is still unpaid at the next monthly settlement, we cancel that invoice and collect its balance together with the new month in one payment, so nothing is charged twice; if it was paid in the meantime, it is not collected again. While an invoice is waiting for you to authenticate its payment, that settlement waits until the payment succeeds or fails. If the provider stops retrying, paid work stays stopped until that invoice is paid.
Can prices change?
Rate changes are published before they apply, with reasonable notice, and take effect only at the start of a UTC calendar month. A month is always priced by the rates in force when it began, so a change never reprices a month already under way.

The full terms are in the terms of service; refunds and corrections in the refund policy.

Less to operate. More to ship.

Start free. Switch on paid usage when you need it.

Create an account and use every product within its free allowance. Pay as you go is off until you switch it on, with a limit you set.

Create a free account Talk to us

Rate catalogue 2026-11-1.

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