Rain Garden vs Rockd
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rain Garden
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.
- 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
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Rain gardens are depressions in the ground that collect rainwater from roofs, driveways, parking areas, or other hard surfaces, reducing the amount of polluted runoff entering local waterways. The University of Connecticut Center for Land Use Education and Research developed this App as a resource for homeowners, landscapers, contractors, and others. The App will guide you through the process of designing, installing, and maintaining a rain garden. The App includes basic information about what rain gardens are and how they work; guidance on how to design and install them properly; and tips on maintaining your garden. The app includes several short video tutorials to help users with each step of the process. Through the App’s Plant Selector tool users can select native, noninvasive plants and their cultivars that are known to work well in rain gardens. Plants can be selected based on plant type, sun exposure, and bloom color. There are also tools for determining rain garden size based on the size of the area draining to it, a soil drainage map to help determine if a rain garden makes sense in a particular area, and a simple cost calculator to gauge cost. Users can also store information in the App about the Rain Gardens they have installed and set maintenance reminders for multiple gardens. It is currently geared primarily toward users in CT, so the plant catalog and mapping tools are specific to that area. However, the general information and tips are applicable anywhere. We hope to have a nationally applicable version available soon. The Center for Land Use Education and Research is a partnership between the Departments of Extension and Natural Resources and Environment in UConn’s College of Agriculture and Natural Resources and the Connecticut Sea Grant Program.
Rockd
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.
- Interactive global geologic maps
- 3D virtual globe exploration
- Field observation logging
- Offline map caching
- Paleogeographic map access
- Stratigraphic column viewing
- Geologic literature integration
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Explore, learn about, and document your geologic surroundings! Whether you are a professional geoscientist or curious about the rocks around you and the stories they tell, Rockd allows you to explore and learn about the geologic record, contribute your own observations, and log your journey through the geologic record. Features: - Instant access to geologic and geographic summaries of your current location via a Dashboard - Interactive global access to more than 290 geologic maps, with more being added weekly - Explore the landscape with a dynamic, 3D virtual globe - Save maps for use in the field with a built-in map caching system - See your past location and explore paleogeographic maps from C.R. Scotese and GPlates - View Macrostrat stratigraphic columns where available (beta) - Explore published literature containing mentions of mapped geologic units (when available) via xDD (formerly, GeoDeepDive) - Elevation data for most points on Earth from digital elevation models (DEMs) - Add your own field observations even offline; tag features from Macrostrat and the Paleobiology Database - Record strike/dip or trend/plunge for geologic features, using your phone's compass - Track your progress through the geologic record privately, or share it with others - See the public activity of other users and share your own and other public checkins using unique URLs Rockd is produced by the Macrostrat lab in the Department of Geoscience at the University of Wisconsin - Madison. Support provided by the National Science Foundation (NSF) and the Dept. of Geoscience. Experiencing issues? Send an email to contact@rockd.org and we will do our best to help you resolve it.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Rain Garden | Rockd |
|---|---|---|
| Price | Free | Free |
| Rating | 2.1 (18 ratings) | 4.4 (187 ratings) — better |
| Positive reviews | 31.3% of reviews | 73.6% of reviews — better |
| Number of ratings | 18 | 187 — better |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 12 MB | 259 MB |
| Age rating | 4+ | 4+ |
| Developer | University of Connecticut | University of Wisconsin-Madison Shared Apps |
Customer experience
Rain Garden
Rockd
Bugs and requests
Rain Garden
Not enough reviews yet to summarise bugs or requests.
Rockd
Reported bugs
17 issues- 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
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- Fossils button not working
- Map returns to user location after viewing check-ins
- App crashes and becomes unresponsive
- Data loss after app reinstall or logout
- Maps fail to load after recent updates
- Location search functionality broken
- Android version windows not visible
- Straight lines appear when zooming
- Formations stop at state lines
- Check-in screen stuck with no exit option
- App won't load after initial use
- Geological overlay won't upload to base map
Requested features
16 requests- 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
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- Map legend/key for geological features
- Spanish language support
- Ability to move dashboard to different locations
- Latitude/longitude search functionality
- Multiple photo attachments per location
- Strike and dip data visualization
- Fault line labeling on maps
- Better Android version compatibility
- Tutorial or short course for advanced features
- Black contact lines between formations toggle
- Personal photo upload focus with mineral variations
In-app purchases
Rain Garden
No in-app purchases
Rockd
No in-app purchases









