# Rain Garden vs Rockd

The clearest difference is rating: Rockd at 4.4 against Rain Garden's 2.1. Rockd also leads on review sentiment (74% vs 31%) and ratings volume (187 vs 18). Rain Garden's advantage is iOS requirement (11.0 vs 16.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Rockd holds the better App Store score, 4.4 against 2.1. That said, the two scores are not equally well evidenced: Rockd has 187 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 31% of Rain Garden's written reviews are positive against 74% of Rockd's.

Rain Garden ships an update every 6 months, Rockd every 3 months. The most recent releases landed on October 22, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Rain Garden | Rockd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (18 ratings)](https://appshunter.io/ios/app/rain-garden/id588712983/reviews) | **[4.4 (187 ratings)](https://appshunter.io/ios/app/rockd/id1153056624/reviews)** |
| Number of ratings | 18 | **187** |
| Positive reviews | 31.3% of reviews | **73.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 12 MB | 259 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [University of Connecticut](https://appshunter.io/developer/552022925) | [University of Wisconsin-Madison Shared Apps](https://appshunter.io/developer/908478605) |

## What reviewers say

### Rain Garden

[App page](https://appshunter.io/ios/app/rain-garden/id588712983)

Learn to design, install, and maintain rain gardens to manage stormwater runoff. This app provides guidance, video tutorials, and tools for plant selection, garden sizing, and cost estimation.

**Highlights:** Rain garden design and installation guidance, Video tutorials for each step, Native plant selector tool, Rain garden size calculator, Soil drainage map, Cost estimation tool, Maintenance reminders

**Features:** macOS Compatibility

**In-app purchases:** none


### Rockd

[App page](https://appshunter.io/ios/app/rockd/id1153056624)

Discover and document the geology around you. Access global geologic maps, 3D globes, and detailed summaries of your surroundings. Contribute your own observations and track your exploration of Earth's geologic history.

**Highlights:** Interactive global geologic maps, 3D virtual globe exploration, Field observation logging, Offline map caching, Paleogeographic map access, Stratigraphic column viewing, Geologic literature integration

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

**In-app purchases:** none

**What reviewers like**

- 🗺️ Comprehensive geological maps with detailed information
- 💡 Innovative integration of peer-reviewed references and literature
- 🧭 Built-in Brunton compass and clinometer tools
- 📱 User-friendly interface and intuitive navigation
- 🌍 Global coverage with paleomaps and stratigraphic data

**What reviewers complain about**

- 🐛 Black map display issues in offline and online modes
- 📍 GPS tracking and real-time position updates failing
- 🔌 Offline functionality severely limited or broken
- 🔐 Persistent login requirement without password saving
- ⚠️ Error dialogs that won't dismiss

**Reported bugs**

- Black map display in airplane mode and online
- Persistent error dialogs that cannot be dismissed
- GPS not tracking in real-time
- Offline check-ins not syncing properly
- Sign-up page jumps between fields and login page

**Requested features**

- Follow/friend mechanic to track other users' check-ins
- Rock identification tool from photo uploads
- Offline map download with customizable zoom levels
- Stereonet tool for structural geology
- Groundwater/aquifer information section


## Frequently asked questions

### Is Rain Garden free?

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

### Is Rockd free?

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

### Which has better reviews, Rain Garden or Rockd?

Rockd is rated higher. Rain Garden averages 2.1 out of 5 from 18 ratings, while Rockd averages 4.4 from 187 ratings.

### Do Rain Garden or Rockd have ads?

Neither Rain Garden nor Rockd shows ads.

### Which is updated more often, Rain Garden or Rockd?

Rain Garden ships an update every 6 months, and Rockd every 3 months. Most recently, Rain Garden was updated on October 22, 2026 and Rockd on October 21, 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.*