I have a similar process. Grammarly for spelling and obvious mistakes, Hemingway app to pick up if I have too many adverbs or weak words, and I listen to it via tts reader to analyze sentence flow, repetition, etc.
It's also quite amazing how many mistakes you notice when you read the text back in a different font. It's like magic.
For more serious projects, I participate in critique groups. It's been beyond helpful.
I'm not ready to release an ebook, but I imagine that I'd have to hire an editor to catch everything else.
If I could just focus on writing and let someone else edit, I could write A TON, but I'm not ready for that type of investment.