Comparison

Rockd vs PolliNation ID

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

PolliNation ID

Contribute to a citizen science project by identifying and documenting native pollinators. Learn about their habits and habitats, and submit photos to help researchers understand their distribution.

Highlights
  • Identify native pollinators
  • Learn about habits and habitats
  • Submit photos of findings
  • Contribute to citizen science
  • Increase awareness of pollinators
Features
Read full description

Bees and other native pollinators around the globe are disappearing at a shocking rate; it is clear that we need to act right away! The PolliNation Project is a citizen science initiative sponsored by the University of Michigan-Dearborn to increase awareness of native pollinators and to better understand their plight. Become part of this initiative by using this app to identify and submit accounts of the native pollinators that you see in your neighborhood. Here you’ll find all the tools that you need to identify common Michigan pollinators and other insects that share their homes as well as learn more about their habits and habitats. You can also submit pictures of the pollinators that you find to help us learn more about the distributions of these important insects. To learn more about the PolliNation project, visit our website.

Screenshots

Rockd4 screens
PolliNation ID4 screens

Verdict

The call

The clearest difference is review sentiment: Rockd at 74% against PolliNation ID's 0%. Rockd also leads on rating (4.4 vs 3.0) and ratings volume (185 vs 1). PolliNation ID's advantage is update cadence (every 5 weeks vs every 3 months) and iOS requirement (13.2 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

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

Rockd holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: Rockd has 185 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 74% of Rockd's written reviews are positive against 0% of PolliNation ID's.

UpkeepUpdate frequency

Rockd ships an update every 3 months, PolliNation ID every 5 weeks. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 5 level
Rockd versus PolliNation ID: the parameters behind the verdict, then further details
ParameterRockdPolliNation ID
PriceFreeFree
Rating4.4 (185 ratings) — better3.0 (1 ratings)
Positive reviews73.6% of reviews — better0.0% of reviews
Number of ratings185 — better1
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.613.2 — better
Further details — not scored
Size259 MB72 MB
Age rating4+17+
DeveloperUniversity of Wisconsin-Madison Shared AppsThe University of Michigan

Customer experience

Rockd

All ratings185 ratings
Positive82.2%
Neutral7.6%
Negative10.3%
Written reviews91 reviews
Positive73.6%
Neutral13.2%
Negative13.2%

PolliNation ID

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

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

PolliNation ID

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Rockd

No in-app purchases

None

PolliNation ID

No in-app purchases

Questions

Is Rockd free?
Rockd is free to download, with no in-app purchases.
Is PolliNation ID free?
PolliNation ID is free to download, with no in-app purchases.
Which has better reviews, Rockd or PolliNation ID?
Rockd is rated higher. Rockd averages 4.4 out of 5 from 185 ratings, while PolliNation ID averages 3.0 from 1 ratings.
Do Rockd or PolliNation ID have ads?
Neither Rockd nor PolliNation ID shows ads.
Which is updated more often, Rockd or PolliNation ID?
Rockd ships an update every 3 months, and PolliNation ID every 5 weeks. Most recently, Rockd was updated on October 13, 2026 and PolliNation ID on October 10, 2026.

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