# Mosquito Alert vs Stone Identifier

The clearest difference is in-app purchases: Mosquito Alert at none against Stone Identifier's 10. Mosquito Alert also leads on ads (none vs shown). Stone Identifier's advantage is rating (4.3 vs 3.9) and ratings volume (1.1K vs 8). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Stone Identifier sells 10 in-app purchases, starting at $2.99 per 7 days. Mosquito Alert asks for nothing beyond the download.

Stone Identifier holds the better App Store score, 4.3 against 3.9. That said, the two scores are not equally well evidenced: Stone Identifier has 1.1K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 0% of Mosquito Alert's written reviews are positive against 23% of Stone Identifier's.

Mosquito Alert ships an update every 2 months, Stone Identifier every 3 months. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Mosquito Alert | Stone Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (8 ratings)](https://appshunter.io/ios/app/mosquito-alert/id890635644/reviews) | **[4.3 (1.1K ratings)](https://appshunter.io/ios/app/stone-identifier/id6443684085/reviews)** |
| Number of ratings | 8 | **1.1K** |
| Positive reviews | 0.0% of reviews | **23.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 56 MB | 64 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [John Palmer](https://appshunter.io/developer/1518089309) | [AppSLabs OU](https://appshunter.io/developer/1648354195) |

## What reviewers say

### Mosquito Alert

[App page](https://appshunter.io/ios/app/mosquito-alert/id890635644)

Contribute to global mosquito research by reporting observations, breeding sites, and bites. Help scientists understand mosquito ecology and disease transmission. Validate photos from other users and learn to identify species.

**Highlights:** Report mosquito observations, Identify breeding sites, Record mosquito bites, Validate participant photos, Learn mosquito identification, View public observation map

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Stone Identifier

[App page](https://appshunter.io/ios/app/stone-identifier/id6443684085)

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.

**Highlights:** Identify Rocks, Gems, and Crystals, Accurate identification results, Fast and convenient tool, Extensive learning database, User-friendly interface, Record geological findings

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rock Identifier | $2.99 | per 7 days |
| Rock ID | $2.99 | per 7 days |
| Rock Identifier | $6.99 | per 7 days |
| Rock ID | $6.99 | per 7 days |
| Sale annual subscription | $9.99 | per year |
| Rock Identifier | $9.99 | per month |
| Stone ID | $14.99 | per month |
| Stone Identifier | $19.99 | per year |
| Rock ID | $19.99 | per year |
| Stone Identifier | $39.99 | per year |

**What reviewers like**

- ⭐ Accurate rock identification
- 🔍 Comprehensive mineral classification
- 👍 User-friendly interface

**What reviewers complain about**

- 🤔 Inconsistent or inaccurate results
- 💰 Paywall for full functionality
- 🚫 Limited free scans
- 📚 Inability to identify rare/mixed gems

**Reported bugs**

- Misidentifies known mineral samples
- Provides incorrect or confusing results

**Requested features**

- Expand free scan limit
- Improve accuracy and precision
- Add history/save feature
- Enhance identification for rare/mixed gems


## Frequently asked questions

### Is Mosquito Alert free?

Mosquito Alert 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, Mosquito Alert or Stone Identifier?

Stone Identifier is rated higher. Mosquito Alert averages 3.9 out of 5 from 8 ratings, while Stone Identifier averages 4.3 from 1.1K ratings.

### Do Mosquito Alert or Stone Identifier have ads?

Stone Identifier shows ads; Mosquito Alert does not.

### Which is updated more often, Mosquito Alert or Stone Identifier?

Mosquito Alert ships an update every 2 months, and Stone Identifier every 3 months. Most recently, Mosquito Alert was updated on November 11, 2026 and Stone Identifier on November 12, 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.*