Groundsman vs CoastSnap | SPOTTERON
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Groundsman
Record and map location data using standard GeoJSON formats like Point, LineString, and Polygon. Input data manually, automatically via GPS, or import from existing GeoJSON files. Share your created features with other applications.
- Record location data
- Map data in GeoJSON format
- Support for Point, LineString, Polygon
- Manual data entry
- Automatic GPS tracking
- Import GeoJSON files
- Share created features
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Groundsman is a utility for recording and mapping location data in GeoJSON format. Supported GeoJSON standard data types include: Point, LineString and Polygon. Location data may be entered manually or automatically using the device's current location. Location data may also be imported via GeoJSON files. All created features can be shared for use in other applications.
CoastSnap | SPOTTERON
Contribute to global coastal research by taking repeat photos of shorelines. Your images are transformed into valuable data used by scientists to monitor and forecast coastal changes due to environmental factors and human activity.
- Global citizen science project
- Track coastal changes over time
- Utilizes photogrammetry for data accuracy
- Contribute to scientific research
- Requires repeat photos at fixed locations
- Smartphone-based data collection
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CoastSnap is a global citizen science project to capture our changing coastlines. No matter where you are in the world, if you have a smartphone and an interest in the coast, we welcome you to participate! CoastSnap relies on repeat photos at the same location to track how the coast is changing over time due to processes such as storms, rising sea levels, human activities, and other factors. Using a specialized technique known as photogrammetry, CoastSnap turns your photos into valuable coastal data that is used by coastal scientists to understand and forecast how coastlines might change in the coming decades. Photogrammetry enables the position of the coastline to be pinpointed from your snaps with an accuracy similar to that of professional coastal survey teams. All we ask is that you take the photos at the same location (by using one of our official CoastSnap camera cradles or a do-it-yourself adaptation) and record the precise photo time in the App. The more photos we have of a particular site, the better our understanding becomes of how that coastline is changing over time.The CoastSnap App is running on the SPOTTERON Citizen Science platform.
Screenshots
Verdict
The clearest difference is review sentiment: Groundsman at 100% against CoastSnap | SPOTTERON's 50%. Groundsman also leads on update cadence (every 5 weeks vs every 4 months). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Groundsman ships an update every 5 weeks, CoastSnap | SPOTTERON every 4 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | Groundsman | CoastSnap | SPOTTERON |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews โ better | 50.0% of reviews |
| Update frequency | Every 5 weeks โ better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 โ better | 12.0 |
| Further details โ not scored | ||
| Size | 41 MB | 90 MB |
| Age rating | 4+ | 4+ |
| Developer | Reilly Mackenzie-Cree | SPOTTERON Gmbh |
Customer experience
Groundsman
CoastSnap | SPOTTERON
In-app purchases
Groundsman
No in-app purchases
CoastSnap | SPOTTERON
No in-app purchases
Questions
Is Groundsman free?
Is CoastSnap | SPOTTERON free?
Do Groundsman or CoastSnap | SPOTTERON have ads?
Which is updated more often, Groundsman or CoastSnap | SPOTTERON?
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