Having keyboard shortcuts could be useful to eliminate some clicks.
For the plans offered, could make it clearer that the premium ones include everything in the cheaper plan + more. Also, providing more details what is included in 'advanced features' and what 'full access' means.
For the plans offered, could make it clearer that the premium ones include everything in the cheaper plan + more. Also, providing more details what is included in 'advanced features' and what 'full access' means.
As far as bugs, ran a scan with TripleChecker (https://triplechecker.com/s/704482/lira.study). There are a few error pages accessible not from the homepage but for example via https://lira.study/sign-in after you click upgrade, including https://lira.study/guide.
Some of the footer links (privacy policy etc.) are not on the homepage.