Appsbid is a public iOS and Android growth leaderboard, and listing an app is free. Paste an App Store or Google Play link and share it on X. Per the site's rules, unique visits to your link earn +1 point and invited listings earn +5. Entries show rank, icon, name, points, description, category, store, time posted and clicks.
The site has Leaderboard, Stats, About and Rules pages and category filters. It runs on the web, and no paid tiers are mentioned. Rankings are driven by shared links, so check the Rules page for how points are counted.
Indie iOS and Android apps are hard to get seen. Appsbid offers one public leaderboard where you paste a live App Store or Google Play link to list, then share on X so visits move the rank.