Let’s make the next
step clear.
For help or a correction, email certloomlearning@gmail.com.
Report a question
Include the question identifier shown in practice, the page address and a short description of what seems wrong. You do not need to send an official score report or any sensitive information.
Practice is not loading
The free interactive tools require JavaScript. Try reloading the page. The lessons and their worked examples remain readable without JavaScript. Leaving a practice page clears that attempt; you can start a new one at any time.
Clear local study marks
Completed-lesson marks are stored in this browser. Clearing them does not delete purchases or app data.
Analytics choices
Analytics is optional and stays off until you allow it. You can change your choice here.
Full access and restoration
In the app, Full access is a one-time purchase without automatic renewal. To recover an eligible purchase, sign in to the same device app store with the account used to buy it and choose Restore purchases in Settings or on the purchase screen. Purchases do not transfer between separate platform stores, and restoration does not recover local study records.
For a charge or refund, use the purchasing store’s refund process. For an app-access problem, email us after trying restoration. See the app purchase and refund terms for details.
Mobile availability
The app is free on iPhone and Android: download it from the App Store or Google Play. This site shows store links only when availability has been confirmed. We do not take website payments or operate a waitlist.