GeoLOG vs Stone Identifier
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GeoLOG
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Interactive geological mapping of Poland The Central Geological Database (CBDG) is Poland's largest collection of digital data relating to the Earth sciences. This database is maintained and developed by the Polish Geological Institute – National Research Institute. CBDG task is to collect and share different types of information in the field of geology and related sciences. All geological data in the application GeoLOG comes from spatial data server CBDG. They are also available as a WMS and WFS services on the Portal CBDG (http://geoportal.pgi.gov.pl).
Stone Identifier
Instantly identify rocks, stones, gems, and crystals by taking a photo or uploading an image. Get accurate results in seconds with a rich database and user-friendly interface. Perfect for both geologists and enthusiasts.
- Identify Rocks, Gems, and Crystals
- Accurate identification results
- Fast and convenient tool
- Extensive learning database
- User-friendly interface
- Record geological findings
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Rock Identifier app will help you to identify the most common Rocks, Stones, Gems & Crystals - just take a photo or download from the gallery and get the result in a couple of seconds. It doesn't matter who you are - a geologist or just an amateur seeker - this app is suitable for absolutely everyone. If you want to get the necessary and accurate information about stones, crystals and gems in the most convenient way for you, then this is exactly what you were looking for. Rock Identifier app features: - Identification of Rocks, Gems and Crystals - Accurate results of identification. - Convinient and fast tool which is always at hand. - Rich learning database of Rocks, Gems & Crystals. - Beautiful & user-friendly interface. - Possibility to record your geological findings and observations. Terms of Use: https://appslabs.org/terms-of-service/ Privacy Policy: https://appslabs.org/privacy-policy/
Screenshots
Verdict
The clearest difference is in-app purchases: GeoLOG at none against Stone Identifier's 10. GeoLOG also leads on ads (none vs shown) and device support (3 vs 1). On price and update cadence 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
Both are free to download. Stone Identifier sells 10 in-app purchases, starting at $2.99 per 7 days. GeoLOG asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 3, 2026.
| Parameter | GeoLOG | Stone Identifier |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (1.1K ratings) — better |
| Positive reviews | — | 23.0% of reviews |
| Number of ratings | — | 1.1K — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 5 MB | 64 MB |
| Age rating | 17+ | 4+ |
| Developer | Państwowy Instytut Geologiczny | Apps Labs |
Bugs and requests
GeoLOG
Not enough reviews yet to summarise bugs or requests.
Stone Identifier
Reported bugs
2 issues- Misidentifies known mineral samples
- Provides incorrect or confusing results
Requested features
4 requests- Expand free scan limit
- Improve accuracy and precision
- Add history/save feature
- Enhance identification for rare/mixed gems
In-app purchases
GeoLOG
No in-app purchases
Stone Identifier
- Rock Identifier3 Days trial$2.997 Days
- Rock ID$2.997 Days
- Rock Identifier3 Days trial$6.997 Days
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- Rock ID$6.997 Days
- Sale annual subscription$9.991 Year
- Rock Identifier$9.991 Month
- Stone ID$14.991 Month
- Stone Identifier$19.991 Year
- Rock ID$19.991 Year
- Stone Identifier$39.991 Year
Questions
Is GeoLOG free?
Is Stone Identifier free?
Do GeoLOG or Stone Identifier have ads?
Which is updated more often, GeoLOG or Stone Identifier?
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