SCraMP vs NavalToolbox
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.
NavalToolbox
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Take too much time to do your technological watch by going on several websites? Do not want to write the Froude formula several times per day? A lapse in memory to convert units? Navaltoolbox gather the solution to all theses issues in an application available on every devices (web and mobile). You will find in this toolbox: - News from many websites and the possibility to add your own RSS feed; - Your reading list*, because we have not always time to read the articles when we open the app; - A page to convert useful units in naval architecture; - The main dimensions calculation (Fn, Re, roll period,…) for a vessel from its characteristics; - A calculator for quick and simple calculations without leaving the application; - The Beaufort and Douglas scales; - A glossary English-French; - A calculation form for standard profil in structure; - Other functions to come… * Need to create a free account to sync your reading list between all your devices. =========================== You have questions or suggestions, the easiest way is to send us an email (antoine@navaltoolbox.com) or let us a comment on the AppStore.
Screenshots
Verdict
The clearest difference is iOS requirement: SCraMP at 8.0 against NavalToolbox's 10.0. On price, update cadence, 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.
Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.
| Parameter | SCraMP | NavalToolbox |
|---|---|---|
| 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 | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 10.0 |
| Further details — not scored | ||
| Size | 2 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Leigh McCue | Antoine Anceau |
In-app purchases
SCraMP
No in-app purchases
NavalToolbox
No in-app purchases









