e vs Geology365
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
e
Access a comprehensive database of over 6200 mineral species with detailed facts, including names, formulas, occurrences, and properties. This offline-capable app provides quick lookups and links to a larger online mineral catalog.
- 6200+ mineral species database
- Detailed species information
- Offline access
- Links to e-Rocks.com catalog
- Quick and easy to use
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e‑Rocks is the orignal curated marketplace and reference platform for mineral collectors, dealers, and enthusiasts worldwide. Browse thousands of minerals and specimens for sale from accredited dealers and private sellers. Search and filter by mineral species, locality, classification and price. Use the mineral wiki to explore wider species information, chemistry, and crystallography data. What you can do with e‑Rocks: Browse and search an extensive catalogue of minerals and specimens both currently being sold and in our extensive archive of over 820,000 specimens built over 20 years. Use advanced filters for species, locality, class, and more View rich specimen detail pages with photos and key data Follow auctions, save favourites, and manage watchlists currently via the e-Rocks website Explore mineral taxonomy and reference data via the mineral wiki Sign in to sync your account between web and mobile Access premium collector features with an optional subscription for more pictures and archive data Whether you’re an experienced collector or just starting out, e‑Rocks gives you a huge mineralogical refernce in your pocket. Support: support@e-rocks.com Privacy Policy: https://e-rocks.com/e-rocks-apps-privacy-policy Terms of Use: https://e-rocks.com/about/terms-conditions
Geology365
Organize and catalog your mineral collection with this app. Document specimens with photos and details like name, origin, size, value, and acquisition history. Access your collection offline for easy field use.
- Mineral collection cataloging
- Specimen documentation with photos
- Track specimen details (name, origin, size, value)
- Acquisition history tracking
- Offline access
- Searchable collection
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Keep your mineral collection organized, accessible, and beautifully cataloged with our easy-to-use Mineral Collection Cataloging Software. Whether you're a hobbyist, student, or serious collector, this app helps you document every specimen with photos, and key details. Track specimen names, origins, sizes, values, and acquisition history. Access your collection offline or in the field. Stay on top of your collection and make your collection searchable anytime. Designed for mineral enthusiasts of all ages, this app brings structure and enjoyment to your collecting journey.
Screenshots
Verdict
The clearest difference is price: e at Free against Geology365's $2.99. Geology365's advantage is rating (4.0 vs 3.0) and in-app purchases (none vs 3). On ratings volume, update cadence, 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
e is free to download; Geology365 costs $2.99 up front. e sells 3 in-app purchases, starting at $22.99 per 3 months. Geology365 asks for nothing beyond the download.
Geology365 holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 67% of e's written reviews are positive against 100% of Geology365's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.
| Parameter | e | Geology365 |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 3.0 (2 ratings) | 4.0 (2 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 2 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Paid |
| Best chart rank | — | #200 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 52 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Wrigley | Ryan Mark Klockner |
Customer experience
e
Geology365
In-app purchases
e
- e-Rocks Collectors 3 Months$22.993 Months
- e-Rocks Collectors 6 Months$39.006 Months
- e-Rocks Collectors Annual$79.001 Year
Geology365
No in-app purchases









