Comparison

Rockd vs ArcGIS Maps SDK Samples

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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.

About

ArcGIS Maps SDK Samples

Explore interactive samples showcasing powerful mapping and visualization capabilities. Learn to integrate advanced features like augmented reality, data editing, and spatial analysis into your own applications by viewing and adapting the provided source code.

Highlights
  • Interactive map and scene samples
  • Augmented reality visualization
  • Data editing and offline capabilities
  • Spatial analysis and routing
  • View and adapt source code
  • Search and query functionality
Features
Read full description

Explore the ArcGIS Maps SDK for Swift with dozens of interactive samples. Experience the SDK's powerful capabilities and learn how to incorporate them into your own apps. View the code behind each sample from within the app and see how easy it is to use the SDK. • Maps - Open, create, interact with, and save maps • Scenes - Visualize 3D environments and symbols • Layers - Display vector and raster data in maps and scenes • Augmented Reality - View data overlaid on the real world through your device's camera • Visualization - Show graphics, popups, callouts, sketches, and style maps with symbols and renderers • Edit and Manage Data - Add, delete, and edit features and attachments, and take data offline • Search and Query - Find addresses, places, and points of interest • Routing and Logistics - Calculate routes between locations and around barriers • Analysis - Perform spatial analysis via geoprocessing tasks and services • Cloud and Portal - Search for web maps and securely connect to your portal • Utility Networks - Work with utility networks, performing traces and exploring network elements The source code for the app is available on GitHub: https://github.com/Esri/arcgis-maps-sdk-swift-samples

Screenshots

Rockd4 screens
ArcGIS Maps SDK Samples4 screens

Verdict

The call

Rockd and ArcGIS Maps SDK Samples both sit at 4.4 stars, but that hides the real split: 73% of Rockd's written reviews are positive against 0% of ArcGIS Maps SDK Samples's. Rockd also leads on ratings volume (185 vs 9) and iOS requirement (16.6 vs 18.0). On price, rating, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

ArcGIS Maps SDK Samples holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Rockd has 185 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 73% of Rockd's written reviews are positive against 0% of ArcGIS Maps SDK Samples's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Rockd ships an update every 3 months, ArcGIS Maps SDK Samples every 4 months. The most recent releases landed on September 30, 2026 and August 31, 2026 respectively.

Scorecard3 real differences · 7 level
Rockd versus ArcGIS Maps SDK Samples: the parameters behind the verdict, then further details
ParameterRockdArcGIS Maps SDK Samples
PriceFreeFree
Rating4.4 (185 ratings)4.6 (9 ratings) — better
Positive reviews73.3% of reviews — better0.0% of reviews
Number of ratings185 — better9
Update frequencyEvery 3 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.6 — better18.0
Further details — not scored
Size259 MB141 MB
Age rating4+4+
DeveloperUniversity of Wisconsin-Madison Shared AppsESRI

Customer experience

Rockd

All ratings185 ratings
Positive82.2%
Neutral7.6%
Negative10.3%
Written reviews90 reviews
Positive73.3%
Neutral13.3%
Negative13.3%

ArcGIS Maps SDK Samples

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and 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
Show 12 more
  • 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
Show 11 more
  • 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

ArcGIS Maps SDK Samples

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Rockd

No in-app purchases

None

ArcGIS Maps SDK Samples

No in-app purchases

Questions

Is Rockd free?
Rockd is free to download, with no in-app purchases.
Is ArcGIS Maps SDK Samples free?
ArcGIS Maps SDK Samples is free to download, with no in-app purchases.
Which has better reviews, Rockd or ArcGIS Maps SDK Samples?
ArcGIS Maps SDK Samples is rated higher. Rockd averages 4.4 out of 5 from 185 ratings, while ArcGIS Maps SDK Samples averages 4.6 from 9 ratings.
Do Rockd or ArcGIS Maps SDK Samples have ads?
Neither Rockd nor ArcGIS Maps SDK Samples shows ads.
Which is updated more often, Rockd or ArcGIS Maps SDK Samples?
Rockd ships an update every 3 months, and ArcGIS Maps SDK Samples every 4 months. Most recently, Rockd was updated on September 30, 2026 and ArcGIS Maps SDK Samples on August 31, 2026.

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