Your listing is costing ChessScout.net installs

Your title leaves half its space unusedTo improve

Length alone wins nothing here. What ranks is the searched term your title carries, and half a title carries far fewer of them, so you turn up on far fewer searches.

Field usage: 14 of 30 characters

Most of your title is not working for searchTo improve

The title is the heaviest ranking field you have, and most of its characters are going to words nobody types on this storefront.

Your description skips your own keywordsTo improve

Google indexes this field, and a term that disappears from it loses the ranking it was holding.

Nobody has rated your app yetTo improve

A page with no rating converts markedly worse, whatever the traffic you send to it.

Your title aims above your weight classTo improve

The most valuable field in your listing is spent on terms owned by much bigger apps, so it ranks nowhere.

You target terms bigger apps already ownTo improve

Outside your title, several of the terms in your listing are held by apps far bigger than yours, so that space ranks nowhere.