If you haven't already, you can download LogTen Pro for Mac here.
Before you can purchase a subscription, you'll be asked to login with your Coradine Account, so please Create a Coradine Account if you have not yet already. Your Coradine Account will allow you to use your LogTen Pro subscription on multiple devices depending on your subscription choice, or restore it if anything were to happen to your current device.
You can view and purchase the different subscription options by selecting the LogTen Pro drop-down menu, then select Store. In the window that opens, you can view any active purchases you have, or switch to the Store tab to view the available subscription options.
Note: Prices will vary depending on your App Store region. Please check the application for the prices in your locale.
You can click on See more... for each to view a more detailed description of each product, and click the button showing the subscription price to start the In-App Purchase process. As with any other In-App Purchase, you may be prompted to login to the iTunes Store with your Apple ID.
After purchasing, your subscription will appear in the Purchased tab of the Store window, and display the date it is due to renew. You can also use the same subscription for LogTen Pro on a total of five Macs, and if you purchased one of the cross-platform subscriptions, up to five iOS devices. All you need to do is login with the same Coradine Account that was used to purchase your subscription, and your other device will automatically be authorized on your account.