# Hoover Decoder vs Gem Heaven

The clearest difference is in-app purchases: Hoover Decoder at none against Gem Heaven's 6. Hoover Decoder also leads on ads (none vs shown) and iOS requirement (13.0 vs 15). On price and device support there is nothing between them.

Both are free to download. Gem Heaven sells 6 in-app purchases, starting at $4.99 per 7 days. Hoover Decoder asks for nothing beyond the download.

## The numbers

| Metric | Hoover Decoder | Gem Heaven |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/gem-heavenai-rock-identifier/id6764629544/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 78 MB |
| Requires iOS | **13.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hoover Pumping Systems Corporation](https://appshunter.io/developer/1726035378) | [Codematics Services](https://appshunter.io/developer/1225541389) |

## What reviewers say

### Hoover Decoder

[App page](https://appshunter.io/ios/app/hoover-decoder/id6476159704)

**In-app purchases:** none


### Gem Heaven

[App page](https://appshunter.io/ios/app/gem-heavenai-rock-identifier/id6764629544)

Instantly identify rocks, minerals, and gemstones with AI-powered analysis. Get scientific breakdowns, market valuations, and build a personal collection portfolio. Connect with specialists and trade securely on the integrated marketplace.

**Highlights:** AI-powered stone identification, Market valuation estimates, Personal collection portfolio, Gemology specialist chat, Secure marketplace for trading, Multi-currency support

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly Subscription | $14.99 | per month |
| Yearly | $49.99 | per year |
| Starter Pack | $0.99 | one-time |
| Explorer Pack | $2.99 | one-time |
| Collector Pack | $9.99 | one-time |


## Frequently asked questions

### Is Hoover Decoder free?

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

### Is Gem Heaven free?

Gem Heaven is free to download, with in-app purchases available.

### Do Hoover Decoder or Gem Heaven have ads?

Gem Heaven shows ads; Hoover Decoder does not.

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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.*