# Citrus Pests Key vs Hutton App

The clearest difference is in-app purchases: Citrus Pests Key at none against Hutton App's 3. Citrus Pests Key also leads on ads (none vs shown) and iOS requirement (10.0 vs 15.1). Hutton App's advantage is update cadence (every 9 days vs every 10 months). On price and device support there is nothing between them.

Both are free to download. Hutton App sells 3 in-app purchases, starting at $5.99 per month. Citrus Pests Key asks for nothing beyond the download.

Citrus Pests Key ships an update every 10 months, Hutton App every 9 days. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Citrus Pests Key | Hutton App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hutton-app/id6755796376/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 61 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [United States Department of Agriculture-APHIS](https://appshunter.io/developer/511305053) | [GeoKidz LLC](https://appshunter.io/developer/1856426044) |

## What reviewers say

### Citrus Pests Key

[App page](https://appshunter.io/ios/app/citrus-pests-key/id816016765)

**Features:** macOS Compatibility

**In-app purchases:** none


### Hutton App

[App page](https://appshunter.io/ios/app/hutton-app/id6755796376)

Explore Earth's geologic wonders with this comprehensive field guide. Identify rocks and minerals using AI or manual methods, access professional geologic maps, and discover over 32,000 rockhounding sites. Document your expeditions with GPS-tagged notes and photos, and connect with a global community of geology enthusiasts.

**Highlights:** Professional geologic maps, Real-time data updates, AI rock and mineral identification, Manual identification mode, 32,000+ rockhounding sites, GPS-tagged trip documentation, Integrated geology dictionary

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hutton Premium Monthly | $5.99 | per month |
| Hutton Premium Six month | $29.99 | per 6 months |
| Hutton Yearly Monthly | $47.99 | per year |


## Frequently asked questions

### Is Citrus Pests Key free?

Citrus Pests Key is free to download, with no in-app purchases.

### Is Hutton App free?

Hutton App is free to download, with in-app purchases available.

### Do Citrus Pests Key or Hutton App have ads?

Hutton App shows ads; Citrus Pests Key does not.

### Which is updated more often, Citrus Pests Key or Hutton App?

Citrus Pests Key ships an update every 10 months, and Hutton App every 9 days. Most recently, Citrus Pests Key was updated on October 17, 2026 and Hutton App on October 6, 2026.

---

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