# TerrainHub — Outdoor Geologic Discovery > Geological discovery app with AI guide and offline maps for outdoor exploration. (iPhone/iPad app by TerrainHub LLC.) - Source: https://appshunter.io/ios/app/terrainhub/id6754611958 (this page in markdown: same URL + `.md`) - Developer: [TerrainHub LLC](https://appshunter.io/developer/1849228108) - Category: Navigation, Education - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 93 MB - Languages: American English - Released: 2026-05-18 - Data updated: 2026-08-23 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/terrainhub/id6754611958/reviews.md ## What is TerrainHub? 222,000+ US sites. 14 categories. Gold, hot springs, fossils, caves, waterfalls, and more — for prospectors, rockhounds, fossil and meteorite hunters, hikers, overlanders, landscape photographers, and anyone with an interest in geology. MINERALS & FOSSILS Gold (125k), Precious Metals (14k), Fossils (29k), Rockhounding (663), Meteorites (1.7k). Filter gold sites by prospecting status — active claims, closed claims, historic deposits, fee digs. Filter rockhounding by material type — gemstones, quartz, agates, petrified wood. WATER FEATURES Natural Springs (35k), Hot Springs (2.3k), Waterfalls (11k), Swimming Holes (660). GEOLOGIC FORMATIONS Caves (1.3k), Natural Arches (722), Rock Pillars (419), Slot Canyons (283), Sand Dunes (136). AI GUIDE — ASK ANYTHING ABOUT THE LAND Unlike a regular AI chat, AI Guide checks real government survey data at your exact location — geology, land management, mining claims, soil chemistry, fault lines, and more. Use the pick location on map feature to scout any area and get a full breakdown before you visit. · Text Q&A — Ask about geology, prospecting potential, land rules, or anything about the area. · Photo Identification — Photograph a rock, mineral, or formation. AI Guide cross-references what it sees with the local geology. · Video Analysis — Record a short video and get a breakdown of terrain and formations. Multiple angles reveal what photos can't. · Explore with Kids — Ask AI Guide to explain geological features in simple terms. Turn a family hike into an educational adventure. 17 MAP LAYERS BLM, National Forest, National Parks, State Parks, Wildlife Refuges, Nature Preserves, Wilderness Areas, Streams & Rivers, Lakes & Reservoirs, Active Mining Claims, Closed Mining Claims, PLSS Survey Grid, Rock Types, Soil Geochemistry, Stream Sediment, Fault Lines, Volcanic Features. Private Land Parcels and LiDAR Hillshade coming soon. FIELD TOOLS Waypoints, Field Notes, GPS Camera, Compass, Magnifier, Distance Line, Draw Area, Location Sharing, Import/Export GPX, and more. Offline maps — download regions before you lose service. FREE TO EXPLORE Start exploring for free. Upgrade to PRO for AI Guide, offline map downloads, and geology and mining layers. SUBSCRIPTION DETAILS TerrainHub PRO unlocks AI Guide, offline map downloads, and PRO map layers (Mining Claims, Geology). - TerrainHub PRO Monthly — $9.99/month - TerrainHub PRO Yearly — $89.99/year (save 25%) TerrainHub PRO+ includes everything in PRO plus higher monthly AI Guide limits - TerrainHub PRO+ Monthly — $19.99/month - TerrainHub PRO+ Yearly — $179.99/year (save 25%) All subscriptions include a 7-day free trial. Payment will be charged to your Apple ID account at the confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Privacy Policy: https://terrainhub.app/privacy-policy Terms of Use: https://terrainhub.app/terms ## Key features - 222,000+ US geological sites - 14 discovery categories - AI Guide for location-based insights - 17 detailed map layers - Offline map downloads - Field tools for exploration - Photo and video analysis ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | TerrainHub PRO | $9.99 | per month | | TerrainHub PRO | $89.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 50 AI Text Credits | $2.99 | one-time | | 50 AI Photo Credits | $6.99 | one-time | | 100 AI Text Credits | $4.99 | one-time | | 10 AI Photo Credits | $1.99 | one-time | | 25 AI Video Credits | $5.99 | one-time | | 25 AI Photo Credits | $3.99 | one-time | | 50 AI Video Credits | $9.99 | one-time | | 10 AI Video Credits | $2.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/terrainhub/id6754611958/reviews.md ### 5/5 — Love this app! *2026-07-19* Great app! Using it for hiking and camping atm, but my husband is in LOVE with the rock hounding features 🫶🏼 ## Frequently asked questions about TerrainHub ### What geological sites can I find with TerrainHub? TerrainHub lists over 222,000 US sites across 14 categories, including gold, hot springs, fossils, caves, waterfalls, natural arches, and more. You can filter gold sites by prospecting status and rockhounding by material type. ### How does the AI Guide in TerrainHub work? The AI Guide uses government survey data for your exact location to provide insights on geology, land management, mining claims, soil chemistry, and fault lines. It offers text Q&A, photo identification, and video analysis for terrain and formations. ### What map layers are available in TerrainHub? TerrainHub offers 17 map layers, including BLM, National Forest, National Parks, PLSS Survey Grid, Rock Types, and Fault Lines. Private Land Parcels and LiDAR Hillshade are coming soon. ### Can I use TerrainHub offline? Yes, TerrainHub allows you to download regions for offline map access, which is useful in areas with no service. This feature is available with a PRO subscription. ### What are the subscription options for TerrainHub? TerrainHub offers PRO and PRO+ subscriptions. PRO unlocks AI Guide, offline maps, and geology/mining layers. PRO+ includes everything in PRO with higher monthly AI Guide limits. Both offer monthly and yearly plans with a 7-day free trial. ### How much does TerrainHub PRO cost? TerrainHub PRO is available for $9.99 per month or $89.99 per year. TerrainHub PRO+ is $19.99 per month or $179.99 per year. All subscriptions include a 7-day free trial. ### Is TerrainHub suitable for children? Yes, TerrainHub can be used to explore with kids. The AI Guide can explain geological features in simple terms, turning family hikes into educational adventures. ### Does TerrainHub have ads? No, TerrainHub does not contain advertisements. The app is free to explore, with optional subscriptions for advanced features. ## Version history (last 5 releases) ### 1.1.2 — 2026-08-17 Bug fixes and performance improvements. ### 1.1.1 — 2026-06-29 Bug fixes and performance improvements. ### 1.1.0 — 2026-06-18 New: Discovery — explore featured or nearby sites by photo and jump right to them on the map. Bug fixes and improvements throughout. ### 1.0.8 — 2026-06-07 New: Discovery — explore featured or nearby sites by photo and jump right to them on the map. Bug fixes and improvements throughout. ### 1.0.5 — 2026-05-30 Bug fixes and performance improvements. --- *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.*