Rockd vs FathomVerse
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
FathomVerse
Explore the ocean world through an immersive game that trains AI for scientific research. Discover and identify over 50 groups of ocean animals using real imagery collected by researchers. Contribute to science while playing minigames, completing quests, and earning badges.
- Play minigames with real ocean imagery
- Identify over 50 groups of ocean animals
- Save and share favorite images
- Participate in quests and earn badges
- Unlock awards for gameplay contributions
- Customize soundscape with Ocean Radio
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The ocean covers more than 70% of our planet, yet most of the life within it remains undiscovered. FathomVerse is changing that, one dive at a time. FathomVerse invites everyone to take part in real ocean exploration and discovery. Through interactive mini-games, FathomNauts identify animals in real underwater photos and contribute to a growing library of labeled images that helps scientists catalog and understand marine life. With FathomVerse, you can: - Be among the first to review real imagery collected in the ocean. - Learn to identify more than 70 groups of marine animals. - Help train AI models by labeling animals in underwater images. - Participate in quests, earn badges, and track your scientific contributions. - Save and share your favorite ocean images in a personal gallery. Whether you're a lifelong ocean lover or simply curious about what lives in the depths, FathomVerse makes it easy to contribute to meaningful scientific research.
Screenshots
Verdict
The clearest difference is rating: FathomVerse at 4.6 against Rockd's 4.4. FathomVerse also leads on review sentiment (86% vs 74%). On price, ratings volume, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
FathomVerse holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 185 and 88 respectively. Written reviews point the same way: 74% of Rockd's written reviews are positive against 86% of FathomVerse's.
Rockd ships an update every 3 months, FathomVerse every 6 weeks. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.
| Parameter | Rockd | FathomVerse |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (185 ratings) | 4.6 (88 ratings) — better |
| Positive reviews | 73.6% of reviews | 85.7% of reviews — better |
| Number of ratings | 185 — better | 88 |
| Update frequency | Every 3 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 259 MB | 284 MB |
| Age rating | 4+ | 4+ |
| Developer | University of Wisconsin-Madison Shared Apps | Monterey Bay Aquarium Research Institute |
Customer experience
Rockd
FathomVerse
User reviews
Rockd
From 185 App Store ratingsWhat we love
- 🗺️ 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
Room to improve
- 🐛 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
FathomVerse
From 88 App Store ratingsWhat we love
- 🌊 Relaxing and peaceful experience
- 🔍 Opportunity to contribute to ocean research
- 🌟 Stunning visuals and immersive environment
- 🧠 Educational content on marine life
- 🤝 Responsive and helpful development team
Room to improve
- 🐛 Buggy and inconsistent user interface
- 🤔 Unclear instructions and onboarding process
- ⏱️ Slow and tedious core gameplay loop
- 🔍 Lack of ability to re-examine animal images
- 🧭 Inconsistent controls between different sections
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
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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
FathomVerse
No bugs or feature requests surfaced in reviews.
In-app purchases
Rockd
No in-app purchases
FathomVerse
No in-app purchases









