# Strat Mobile vs Stone Identifier

The clearest difference is rating: Stone Identifier at 4.4 against Strat Mobile's 1.0. Stone Identifier also leads on ratings volume (1.5K vs 1). Strat Mobile's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Stone Identifier sells 10 in-app purchases, starting at $4.99 per 7 days. Strat Mobile asks for nothing beyond the download.

Stone Identifier holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Stone Identifier has 1.5K ratings behind it against 1, so its average is the more settled of the two.

Strat Mobile ships an update monthly, Stone Identifier every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Strat Mobile | Stone Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/strat-mobile/id1289101464/reviews) | **[4.4 (1.5K ratings)](https://appshunter.io/ios/app/stone-identifier-rock-finder/id1608573202/reviews)** |
| Number of ratings | 1 | **1.5K** |
| Positive reviews | — | 16.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 185 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Richard Allmendinger](https://appshunter.io/developer/1194772609) | [App Holdings](https://appshunter.io/developer/808581339) |

## What reviewers say

### Strat Mobile

[App page](https://appshunter.io/ios/app/strat-mobile/id1289101464)

This application allows geologists to measure and record stratigraphic sections directly on their mobile devices. It offers multiple measurement methods, including using the device's camera or a traditional Jacob Staff, and automatically logs location and time data. Users can define lithology types, view statistics, and see section locations on a map.

**Highlights:** Real-time stratigraphic section plotting, Measure sections using device camera or Jacob Staff, Automatic recording of location, time, and date, Define unlimited lithology types with custom colors, Basic statistics on lithology thicknesses and percentages, View section locations on satellite or road maps

**Features:** macOS Compatibility

**In-app purchases:** none


### Stone Identifier

[App page](https://appshunter.io/ios/app/stone-identifier-rock-finder/id1608573202)

Identify rocks, minerals, and crystals from photos with high accuracy. Explore their properties, discover nearby deposits on a map, and build your own digital collection. Learn fascinating facts about stones from around the world.

**Highlights:** Accurate rock identification from photos, Study physical and chemical properties, Discover nearby rock deposits on a map, Create and manage a personal rock collection, Learn about thousands of rock types

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RockPlatinum Weekly | $4.99 | per 7 days |
| RockPlatinum Weekly with Trial | $4.99 | per 7 days |
| RockPlatinum Weekly with Trial | $5.99 | per 7 days |
| RockPlatinum Weekly | $5.99 | per 7 days |
| RockPlatinum Weekly 7day Trial | $5.99 | per 7 days |
| RockPlatinum Monthly Access | $9.99 | per month |
| RockPlatinum Monthly + Trial | $9.99 | per month |
| Rock Seeker Platinum Annual | $29.99 | per year |
| RockPlatinum Annual 3day Trial | $29.99 | per year |
| Rock Seeker Platinum Annual | $39.99 | per year |

**What reviewers like**

- 🤗 Helpful for identifying rocks and minerals
- 🧠 Informative details on specimens
- 👨‍🏫 Educational for students and kids

**What reviewers complain about**

- 🤷‍♂️ Inconsistent and inaccurate identification results
- 💰 Expensive subscription model
- 🔒 Difficult to cancel subscription
- 🙅‍♀️ Limited free usage
- 🤖 Feels like an automated response rather than a knowledgeable app

**Reported bugs**

- App crashes or freezes during use
- Server connection issues prevent identification
- Incorrect or nonsensical identification results

**Requested features**

- Allow manual rock/mineral identification input
- Provide more detailed information on each specimen
- Improve accuracy of identification algorithms
- Offer a one-time purchase option instead of subscription


## Frequently asked questions

### Is Strat Mobile free?

Strat Mobile is free to download, with no in-app purchases.

### Is Stone Identifier free?

Stone Identifier is free to download, with in-app purchases available.

### Which has better reviews, Strat Mobile or Stone Identifier?

Stone Identifier is rated higher. Strat Mobile averages 1.0 out of 5 from 1 ratings, while Stone Identifier averages 4.4 from 1.5K ratings.

### Do Strat Mobile or Stone Identifier have ads?

Stone Identifier shows ads; Strat Mobile does not.

### Which is updated more often, Strat Mobile or Stone Identifier?

Strat Mobile ships an update monthly, and Stone Identifier every 3 weeks. Most recently, Strat Mobile was updated on November 3, 2026 and Stone Identifier on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*