How do I see my active subscriptions?

On your Apple devices, access the App Store, roll the “Featured” page to the end and click on the “Apple ID” field. Then, click on the “View Apple ID” button. After that, access the “Subscriptions” option.

At Google Play, follow the “Manage Subscriptions” instructions on the link:
https://support.google.com/googleplay/answer/2476088?hl=pt-BR&vid=1-635755308639543387-10615483563336653656