# Subterranea: Metal Discovery — Dig for underground metal > AI-powered music discovery for underground and niche artists. (iPhone/iPad app by Metal Minds Media.) - Source: https://appshunter.io/ios/app/subterranea-metal-discovery/id6790850233 (this page in markdown: same URL + `.md`) - Developer: [Metal Minds Media](https://appshunter.io/developer/6790850235) - Category: Music, Entertainment - Price: Free with in-app purchases - Rating: 5.00/5 from 3 App Store ratings · 2 written reviews indexed - Age rating: 12+ - Requires: iOS 15.1 · 43 MB - Languages: American English - Released: 2026-07-22 - Data updated: 2026-08-23 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/subterranea-metal-discovery/id6790850233/reviews.md ## What is Subterranea? You've heard the classics. Subterranea is for what's underneath. Feed it a band you already love, and it surfaces artists you haven't heard yet — not the algorithm's greatest hits, but the ones waiting one, two, or four layers down. DIG BY DEPTH Choose how far you want to go: • Surface — the canonical, well-known names around your seeds • Underground — recognized, but not household names • Deep — cult bands with a devoted following • Bedrock — demos, tiny labels, and buried gems BUILT FOR CRATE-DIGGERS • Track every find: to-listen, listened, favorite, or passed • Hide bands you already know so they never resurface • "More like this" to branch off any discovery • Dig by region and scene • Your whole library lives on-device; export a backup anytime PRIVATE BY DESIGN No account. No login. No tracking. Everything you save stays on your phone. The only thing that leaves your device is the band you type in —sent to Subterranea's service to generate your recommendations, with no name, email, or identity attached. FREE TO START Get one dig every day, free — no account, no card. SUBTERRANEA PRO Go Pro for unlimited digs, every depth from Surface to Bedrock, and region and scene filters. Monthly or yearly — cancel anytime. Every subscription directly supports an independent developer keeping the underground alive. Stop replaying the same ten albums. Start digging. Subterranea Pro is an auto-renewing subscription (monthly or yearly). Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period; manage or cancel anytime in your Account Settings. Terms of Use: https://subterranea.io/terms · Privacy Policy: https://subterranea.io/privacy ## Key features - AI-powered music recommendations - Dig by depth (surface to bedrock) - Track listening history (to-listen, listened, favorite) - Hide known bands - Advanced filtering (region, scene) - On-device library - Privacy-focused, no account required ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Subterranea Pro | $2.99 | one-time | ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/subterranea-metal-discovery/id6790850233/reviews.md ### 5/5 — 10/10 it Thrashed me metal.. *2026-08-13* My brain has been thrashed. Easy to use Free And more I’m too lazy to type… **Developer response:** Thanks for the review! Keep thrashing! \m/ ### 5/5 — Rock on! *2026-07-26* Super cool app. The free version works, but it’s worth it to pay the one time fee for unlimited and advanced features. I’ve found so many killer bands I never would’ve on my own from all over the world. **Developer response:** Thanks so much for the review! \m/ ## Frequently asked questions about Subterranea ### How does Subterranea discover new music? Subterranea uses AI to analyze bands you already enjoy and surfaces artists that are similar but less known. You can choose how deep into obscurity you want to dig, from well-known names to demos and tiny labels. ### What are the different digging depths in Subterranea? Subterranea offers four digging depths: Surface for canonical names, Underground for recognized but not household names, Deep for cult bands, and Bedrock for demos and buried gems. ### Can I track the music I discover in Subterranea? Yes, Subterranea allows you to track every find. You can mark bands as to-listen, listened, or favorite, and hide bands you already know to prevent them from resurfacing. ### Is Subterranea private and secure? Subterranea is designed for privacy with no account or login required, and no tracking. Your saved music library stays on your phone. Band queries are sent to Groq's AI for recommendations. ### How does Subterranea's pricing work? Subterranea is free to try with one dig per day. A single one-time purchase unlocks Subterranea Pro for unlimited digs, all depth levels, and advanced filters, with no subscription required. ### Does Subterranea require a Groq API key? Yes, Subterranea runs on your own free Groq API key, which you can obtain from console.groq.com. This means you pay for the app once and do not have ongoing AI subscription fees. ### What devices does Subterranea support? Subterranea is currently supported on iPhone and iPod devices. ### How often is Subterranea updated? Subterranea was last updated on July 22, 2026, with version 1.0. This indicates it is a new release and further updates are expected. ## Version history (last 4 releases) ### 0.1.3 — 2026-08-20 Subterranea just got simpler. • No setup, no API key — digs now work the moment you open the app. • A new built-in recommendation engine: nothing to configure, no keys to paste. • Subterranea Pro is now available as a subscription — unlimited digs, every depth from Surface to Bedrock, and region and scene filters. Manage or cancel anytime in Settings. • Already unlocked Pro? Your access carries over. Thank you for the early support. • Bug fixes and polish. Keep digging. ### 0.1.2 — 2026-08-15 Fixes an issue where some searches failed to return results. ### 0.1.1 — 2026-08-14 Reliability improvements to recommendation generation. ### 1.0 — 2026-07-22 No release notes. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*