There are some similar questions about this topic but non of them really matches my problem. I made an App with Flutter and while uploading my project to the App Store I got asked about the Export Compliance. My App contains some buttons to some homepages, so for example there is a button called News and when the user clicks on that button, the internal browser of the iPhone opens up and a news homepage appears. Also it is possible to share one of ten images which are all located inside the App. The user can share this image via WhatsApp, Mail, etc. Some of the images are located in Firebase storage and displayed inside the App. I also use Cloud Firestore to display a little text.
One other function of the App is that the user can search for some cars. The user chooses brand, model and price and then the results are shown. All the data of the cars are located in a json file which I host on my own GitHub open repository.
That's basically it. These are the only things my App can do.
Do I need to say "yes" to the question wether or not my App uses encryption? I'm really not sure..