# METH vs Crystal & Gem Identifier

The clearest difference is rating: METH at 5.0 against Crystal & Gem Identifier's 2.7. METH also leads on in-app purchases (none vs 4). Crystal & Gem Identifier's advantage is ratings volume (3 vs 1). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Crystal & Gem Identifier sells 4 in-app purchases, starting at $4.99 per 7 days. METH asks for nothing beyond the download.

METH holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

## The numbers

| Metric | METH | Crystal & Gem Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/meth-meth/id6670773933/reviews)** | [2.7 (3 ratings)](https://appshunter.io/ios/app/crystal-and-gem-identifier/id6752384767/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Monetization | **Free** | Free with in-app purchases |
| Size | 48 MB | 20 MB |
| Requires iOS | **14.0.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tj Business Group S.A. de C.V.](https://appshunter.io/developer/1492943861) | [Faisal Musthaq](https://appshunter.io/developer/1785362649) |

## What reviewers say

### METH

[App page](https://appshunter.io/ios/app/meth-meth/id6670773933)

Configure, control, and monitor your methanol injection kit directly from your mobile device. This utility app provides essential tools for managing your injection system's performance.

**Highlights:** Configure injection kit settings, Control injection kit operation, Monitor injection kit performance, Mobile device integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Crystal & Gem Identifier

[App page](https://appshunter.io/ios/app/crystal-and-gem-identifier/id6752384767)

Instantly identify crystals and gemstones using photo scans. Access detailed profiles, care guides, and track your collection. Offers tips to distinguish real from fake stones.

**Highlights:** Instant identification via photo scans, Detailed crystal profiles, Real vs. fake detection tips, Crystal cleansing and care guides, Personal collection tracking, Save and organize identified stones

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Crystal Identifier Weekly | $4.99 | per 7 days |
| Crystal Identifier Weekly | $4.99 | per 7 days |
| Crystal Identifier Yearly | $39.99 | per year |
| Crystal Identifier Yearly | $39.99 | per year |


## Frequently asked questions

### Is METH free?

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

### Is Crystal & Gem Identifier free?

Crystal & Gem Identifier is free to download, with in-app purchases available.

### Which has better reviews, METH or Crystal & Gem Identifier?

METH is rated higher. METH averages 5.0 out of 5 from 1 ratings, while Crystal & Gem Identifier averages 2.7 from 3 ratings.

### Do METH or Crystal & Gem Identifier have ads?

Neither METH nor Crystal & Gem Identifier shows ads.

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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.*