Yes - there is a paywall which seems to be the chief complaint of the 1 star reviewers. To me, 3 dollars is worth it to save the Google searches necessary to find the same info. Also, I find this app pretty user friendly. If you hate paywalls, then don’t get this app. If you want want it offers and are willing to part w 3 dollars, this app is handy.

Appreciate the app but often it asks me to pay. I’ve already paid. Hoping I’m not paying multiple pmts. If so, my review will be much worse.

Only wanted an app that included a single formula for compounding calculations for investments, and this app has overly intrusive advertisements and limited features (even when it puts you through the misery of prolonged forced bad advertising) all in an attempt to get people to pay money. There are other similar but better free apps on the store with more features and completely free of charge, with reasonable advertising that does not get in the way of the app itself. Just keep looking.

I downloaded the app and wanted to change the setting from yearly to monthly. Most people put money into investments every month, not yearly. Once I clicked that, it asked for a payment of 2.99. No thanks, deleted the app.