Ask HN: What tools should I build for individual investors?

My background is in hedge funds but I've always liked building things on the side. I recently started managing my own money in stocks. Along the way, I've been creating tools useful to my research process.

Here's what I'm currently building:

- automated one-page summaries of individual companies financials and what they do — see up to 20 yrs of historical data and all 3 financial statements on 1 page, to make it easier to "skim" an investment before committing to further research.

- a specialised search engine for investors — easily search through professional investor letters to find out if an investor has discussed a stock you're interested in (built), thinking of expanding this to cover a set of professional investor blogs as well.

Other than my own tools, I'm a big user of whalewisdom and the valueinvestorsclub.

I'd like to create a subscription bundle at a retail price point (say $10/mo), and keep adding tools to the bundle at that fixed price. What I've built so far can be found at https://snowballing.co.

Welcome all thoughts/ideas/comments/wishlists.