If you would like to use our Custom Calculators you will need to register an account with us.
Registering an account will provide you with a limited trial (currently 7 days) of the Custom Calculators. Once your trial has expired, continued Custom Calculators use will require a subscription.
When you're trial time runs out, you will need to subscribe to continue to use our Custom Calculators.
Monthly and Annual subscriptions are available at 0.50GBP and 3.95GBP, respectively.
Please note that our Standard Calculators are available at all times, regardless of whether have have an account and/or subscription.
If you'd like any futher clarification on registration or subscription, please contact us.