Licences and Subscriptions

Get CableCalc and FormFill as flexible monthly or annual licences, with access to the latest versions, updates and support included.

Annual licences offer the best value, saving 20% compared with monthly subscriptions, while monthly subscriptions give you a low-cost way to get started with a free first month for new customers.

Choose the licence that best suits your work, from everyday contractor certification and design through to advanced design, fire alarm and emergency lighting reporting.

  • Free first month on monthly subscriptions for new customers*
  • Immediate access to the latest software releases
  • Unlimited internet updates and current program versions
  • Office-hours telephone and email technical support
  • Flexible monthly or annual billing options
  • Access to both Mac and Windows desktop versions
  • Includes FormFill mobile apps for Android and iPhone/iPad
  • Extra users available at a reduced cost

New to Castline? Start with a free first month on monthly subscriptions. Payment details are required to activate the trial, and you can cancel online anytime before renewal.

Best for consultants, advanced design, fire alarm and emergency lighting certification

FormFill Level 3

FormFill - Level 3

CableCalc Level 4

CableCalc BS7671 - Level 4

Includes both Mac and Windows versions as well as FormFill data collection apps for Android and iPhone/iPad plus Upgrade, Maintenance & Support

The Design Licence is available for £295.00 per year, or £29.50 monthly. Choose an annual subscription and save £59 per year compared with paying monthly. It also offers excellent value compared with buying the products separately, which would cost over £2,500.00.

  • Monthly Design Licence - £29.50 per month +VAT
  • Annual Design Licence - £295.00 per year +VAT
    Best Value - Save £59/year

Best for everyday contractor design and electrical certification work

FormFill Level 2

FormFill - Level 2

CableCalc Level 2

CableCalc BS7671 - Level 2

Includes both Mac and Windows versions as well as FormFill data collection apps for Android and iPhone/iPad plus Upgrade, Maintenance & Support

The Contractor Licence is available for £165.00 per year, or £16.50 monthly. Choose an annual subscription and save £33 per year compared with paying monthly. It also offers excellent value compared with buying the products separately, which would cost nearly £500.00.

  • Monthly Contractor Licence - £16.50 per month +VAT
  • Annual Contractor Licence - £165.00 per year +VAT
    Best Value - Save £33/year

Free first month available to new customers on monthly subscriptions only. Payment details are required to activate the trial and will be used for future monthly payments unless the subscription is cancelled before renewal. Monthly payments may be taken up to three days before the renewal date.

Frequently Asked Questions

What is the difference between monthly and annual licences?

Monthly licences are paid automatically each month and can be cancelled online at any time before renewal. Annual licences are paid as a single yearly payment and offer a 20% saving compared with paying monthly.

Is there a free trial available?

Yes. New customers can start with a free first month on monthly subscriptions. Payment details are required to activate the trial, and no charge is made during the first 30 days.

What is included with a licence?

Licences include access to the latest software releases, unlimited internet updates, current program versions, and office-hours telephone and email technical support. They also include access to both Mac and Windows desktop versions, plus FormFill mobile apps where applicable.

Which licence should I choose?

The Contractor Licence is best for everyday electrical certification and design work, including CableCalc Level 2 and FormFill Level 2. The Design Licence is best for consultants, advanced design, fire alarm and emergency lighting work, including CableCalc Level 4 and FormFill Level 3.

Can I add extra users to a licence?

Yes. Extra users can be added to licences at a reduced cost, making it easy to expand access across your team as needed.