Memorising and retaining JLPT3 and 2 Kanji

So I passed JLPT3 in December. And I am already falling behind in my flashcards for vocabulary. I actually just use the Renzo Inc Japanese app which is an AMAZING dictionary. I love this dictionary. It’s perfect. However… I used it’s flashcard system but it’s a bit poor. It doesn’t offer spaced repitition.

I used Anki LOOOONG ago… but it also fell by the wayside. No particular reason. I heard about JPDB…..So my question is this. I need to get back up to speed with my JLPT3 Vocabulary, and also master JLPT2. Is there a reliable app, or system that anyone can recommend that offers spaced repition with good word lists already implemented. I know with Anki, you can make your own decks. I don’t want to do that. It will take hours, days, with all the vocabulary. So any advice would be greatly appreciated. My aim ultimately, is just to go up to JLPT2, and then work on retaining that through reading and daily spaced repition flashcards. (I also speak and listen to Japanese through people in my life)