SCraMP vs GWL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SCraMP
This app displays motion data from your device's accelerometer, gyroscope, and location. It includes motion warning indices specifically designed for boating operations. Data can be recorded at a user-defined sample rate.
- Accelerometer data display
- Gyroscope data display
- Location data display
- Motion warning indices for boating
- Record motion data
- User-selected sample rate
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The Small Craft Motion Program (SCraMP) displays the device's accelerometer, gyroscope, and location data. A collection of motion warning indices are implemented for boating operations. Motion data can be recorded at user-selected nominal sample rate; location data is recorded at device-selected sample rate. Use of this program does not replace good judgment! Safe boat operation is the Captain's responsibility.
GWL
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This app scans for Ground water sensor and reads the depth of water
Screenshots
Verdict
The clearest difference is update cadence: SCraMP at every 6 weeks against GWL's every 14 months. SCraMP also leads on iOS requirement (8.0 vs 13.0). On price, ads, in-app purchases and device support 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.
SCraMP ships an update every 6 weeks, GWL every 14 months. The most recent releases landed on September 18, 2026 and October 3, 2026 respectively.
| Parameter | SCraMP | GWL |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 6 weeks — better | Every 14 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 2 MB | 10 MB |
| Age rating | 4+ | 17+ |
| Developer | Leigh McCue | Smart Sensor Devices AB |
In-app purchases
SCraMP
No in-app purchases
GWL
No in-app purchases
