I can't afford pro, but there are a bunch of features I'd use if I had it. Notably the listening exercises, possibly the spelling vector, and maybe kanji writing. I also think the extra grammar sentences would be helpful. Also the counter games.
I think you get a free trial in your messages soon after signing up. You can always try and see for yourself.
EDIT: Thanks for the supporter points, I appreciate it! But you should hand them to @クァン instead. I was just highlighting some features that seem useful!
When I first discovered renshuu I felt a bit overwhelmed by so much information, the platform is huge and has too many features, I basically created my account and never bothered again. This was like, 2-3 years ago maybe. I recently decided to pick up japanese again and many people on r/learnjapanese praised renshuu so I gave it another try. Honestly, I am enjoying a lot!! More than I thought i would lol. It's so cute and fun, it's a breath of fresh air in my studies. I like to use it for kanji and vocab so far, but I'm still exploring the website. 🌸
I decided to get Renshuu Pro after several months of using the base version, but some users were so nice and gave me Kao coins so I could try it out (along the few days offered upon creating the account). What I think stands out the most in Renshuu Pro is the number of sentences used in quizzes, which significantly add more case scenarios while reviewing grammar schedules, while also unlocking more options in Kanji quizzes. The chance of using sentences also while reviewing vocab schedules is pretty neat too, since being asked vocabs without context can get old after a bit, and this also gives you the chance to try to read more sentences (or not, if you're in a hurry you can just focus on the highlighted bit and give your answer!).
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