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Truebill maintains no partnership or agreement with Iris Calculator. Truebill is an independent third party service that acts as an authorized representative when cancelling subscriptions on your behalf.

Iris Calculator is a web-based app for helping create mechanical iris diaphragms. It enables you to work through multiple design iterations in an instant, taking all the pain away, and saving you countless hours of design time.

How to Cancel Iris Calculator Manually

Unsubscribe by following these steps:

Email support@iris-calculator.com and ask them to cancel your account.
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average of $512 per year.