Comparison

TreasureHunter3D vs Rock identifier. Crystal guide

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TreasureHunter3D

Visualize buried objects up to 30 meters deep with high-resolution 3D scans. Detect precious metals, ancient artifacts, and hidden structures. Requires a specific metal detector device.

Highlights
  • High-resolution 3D object visualization
  • Detect object presence, depth, and size
  • View sub-surface object shapes
  • Store scan data and GPS locations
  • Share scans via email and social media
  • Export scans to mapping software
  • Bluetooth 4.0 connectivity
Read full description

IMPORTANT NOTICE: This application only works with TreasureHunter3D metal detector devices! TreasureHunter3D makes underground treasures visible. It enables user to discover and visualise objects that are buried up to 30m below ground with highest resolution scan available on the market. TreasureHunter3D devices are able to detect precious metals like gold ore, silver and ancient bronze objects as well as other non metallic objects like chests, boxes, hidden rooms, graves and tunnels. KEY FEATURES: • 3 operation modes that enables user to - detect the presence of an object - determine depth - determine the size of an object - view the shape or sub-surface view of an object - observe ground surface & scan results simultaneously on screen while performing the scanning • high resolution 3D graphical representation • touch controlled responsive zoom and rotation of 3D object view • sensitivity adjustment • battery status monitoring • volume control • ability to store scan data • ability to store geographic (GPS) location of scans • easy sharing of ground scans via e-mail, MMS, FB,.. • possibility to export 3d scans to 2D & 3D mapping softwares • Bluetooth 4.0 connectivity is used for communication with device to keep power consumption low during treasure hunting TREASURE HUNTING BENEFITS: • financial: supplement your income by hunting for treasure. Treasure hunting is one of the few hobbies that can really “pay for itself ” with every day finds • entertainment: searching for Hidden History with TreasureHunter3D devices is fun. You never get bored. It’s always exciting never knowing what you are going to find. • health: searching for lost treasures with has proven to be a great “stress buster” • social: you will certainly make more friends on your search for Hidden History. It is also the perfect way to get your friends & family involved in doing an activity together. REQUIREMENTS: • TreasureHunter3D metal detector device that can be purchased here: www.treasurehunter3d.com. • iOS devices with Bluetooth 4.0 (iPhone 5s or later) • iOS 8.0 or later

About

Rock identifier. Crystal guide

Identify rocks, crystals, and stones using your phone's camera. Explore a comprehensive reference encyclopedia and manage your personal collection. Discover the world of geology with this intuitive guide.

Highlights
  • Photo identification of rocks and crystals
  • Reference encyclopedia
  • Collection tracking
  • Gem and stone identification
  • User-friendly interface
Features
Read full description

Easily recognize crystals and rocks by photo, browse the reference encyclopedia and keep track of your collection of rocks, stones and crystals. Terms of use: https://rockscan.online/terms.html Privacy policy: https://rockscan.online/privacy.html

Screenshots

TreasureHunter3D4 screens
Rock identifier. Crystal guide3 screens

Verdict

The call

The clearest difference is rating: TreasureHunter3D at 5.0 against Rock identifier. Crystal guide's 4.1. TreasureHunter3D also leads on in-app purchases (none vs 2) and review sentiment (22% vs 13%). Rock identifier. Crystal guide's advantage is update cadence (every 4 days vs every 11 months) and ratings volume (113 vs 1). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Rock identifier. Crystal guide sells 2 in-app purchases, starting at $14.49 per month. TreasureHunter3D asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

TreasureHunter3D holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Rock identifier. Crystal guide has 113 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 22% of TreasureHunter3D's written reviews are positive against 13% of Rock identifier. Crystal guide's.

UpkeepUpdate frequency

TreasureHunter3D ships an update every 11 months, Rock identifier. Crystal guide every 4 days. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

Scorecard7 real differences · 3 level
TreasureHunter3D versus Rock identifier. Crystal guide: the parameters behind the verdict, then further details
ParameterTreasureHunter3DRock identifier. Crystal guide
PriceFreeFree
Rating5.0 (1 ratings) — better4.1 (113 ratings)
Positive reviews22.2% of reviews — better12.5% of reviews
Number of ratings1113 — better
Update frequencyEvery 11 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS9.1 — better13.0
Further details — not scored
Size19 MB145 MB
Age rating4+4+
DeveloperTekasoDmitriy Beloglazov

Customer experience

TreasureHunter3D

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive22.2%
Neutral11.1%
Negative66.7%

Rock identifier. Crystal guide

All ratings113 ratings
Positive76.1%
Neutral3.5%
Negative20.4%
Written reviews8 reviews
Positive12.5%
Neutral0.0%
Negative87.5%

In-app purchases

None

TreasureHunter3D

No in-app purchases

2 purchases

Rock identifier. Crystal guide

Subscriptions2
  • Crystal Identifier. 1 month.3 Days trial$14.491 Month
  • Premium - Year$24.491 Year

Questions

Is TreasureHunter3D free?
TreasureHunter3D is free to download, with no in-app purchases.
Is Rock identifier. Crystal guide free?
Rock identifier. Crystal guide is free to download, with in-app purchases available.
Which has better reviews, TreasureHunter3D or Rock identifier. Crystal guide?
TreasureHunter3D is rated higher. TreasureHunter3D averages 5.0 out of 5 from 1 ratings, while Rock identifier. Crystal guide averages 4.1 from 113 ratings.
Do TreasureHunter3D or Rock identifier. Crystal guide have ads?
Neither TreasureHunter3D nor Rock identifier. Crystal guide shows ads.
Which is updated more often, TreasureHunter3D or Rock identifier. Crystal guide?
TreasureHunter3D ships an update every 11 months, and Rock identifier. Crystal guide every 4 days. Most recently, TreasureHunter3D was updated on October 23, 2026 and Rock identifier. Crystal guide on October 22, 2026.

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