MartleyRocks vs Groundwater App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MartleyRocks
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Interact with the fascinating and exceptional geology of Martley, Worcestershire, England, with this app which provides an interactive 2D/3D view of the geology and walking trails of the area. Set views over the terrain by moving around with touch gestures. GPS or touching the map provides information about the geology of that location. Interpretation of past environments and the ‘voyage of Martley’ from the near the South Pole to 52’N over 700 million years of Earth history.
Groundwater App
Explore the origins, uses, and river connections of groundwater through three engaging chapters. Conduct experiments in a virtual lab to deepen your understanding of groundwater behavior.
- Three learning chapters
- Groundwater origins explained
- Groundwater uses detailed
- Link between groundwater and rivers
- Virtual groundwater lab
- Interactive experiments
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In three short chapters you learn, how groundwater originates, how we use it and why there is a link to rivers. Furthermore you can do experiments in the groundwater lab. Here you can increase your knowledge about the behavior of groundwater.
Screenshots
Verdict
The clearest difference is update cadence: Groundwater App at every 6 months against MartleyRocks's every 46 months. Groundwater App also leads on iOS requirement (6.0 vs 11.0). MartleyRocks's advantage is device support (3 vs 1). On price, ads and in-app purchases 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.
MartleyRocks ships an update every 46 months, Groundwater App every 6 months. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.
| Parameter | MartleyRocks | Groundwater App |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 46 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 11.0 | 6.0 — better |
| Further details — not scored | ||
| Size | 65 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Brooks | Koboldgames GmbH |
In-app purchases
MartleyRocks
No in-app purchases
Groundwater App
No in-app purchases
Questions
Is MartleyRocks free?
Is Groundwater App free?
Do MartleyRocks or Groundwater App have ads?
Which is updated more often, MartleyRocks or Groundwater App?
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