Difference in price between mobile and web?

Why is there a difference in the “one off” price on web and app? The desktop “one off” price is $129 vs. $99 on mobile? Is there difference in services? What do you get access to with the lifetime choice or pro in general?

You pay for the service, not the app or the web itself.
There is only one product: ‘PRO’, for different periods: one month, three months, life time etc. Apparently, when purchasing using the App it’s cheaper. I didn’t know that. Thanks for reporting.

Features are here. But, some features work slightly different on the App as compared to the web (e.g. difficult words).

BTW: in my app, I have never ever seen the PRO purchase screen. It has a PRO tab, which only shows the features you will get with PRO. Would you mind posting a screenshot of the App selling PRO?

I’m having the opposite experience…I’m still in my first few days and the website is offering me a year for $30 USD but the mobile android app is offering it at 44.25. The app doesn’t specify what currency it’s using, so maybe that’s it? (I’m in Canada, and that would seem to be about right for the current exchange rate.)

The app is also not offering the permanent option, only monthly, annually, and quarterly. Weird!