ilearntoboat vs Density Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ilearntoboat
This app is a mobile companion for an interactive boating safety course. It uses a branching narrative story with role-playing simulations to teach boating knowledge and decision-making skills. The course meets national boating safety education requirements.
- Interactive boating safety course
- Branching narrative story
- Role-playing simulations
- Real-life boating decisions
- Earn achievements
- No minimum time requirements
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Developed to support students enrolled in ilearntoboat's Official Interactive Boating Safety Course, this app is the mobile companion to the web-based course. The ilearntoboat interactive course is built around a branching-narrative story called “The Mystery of Kalkomey Island” where you'll complete your boating safety education requirements by joining four friends as they embark on a boating adventure encountering storms, boat thieves, and a mysterious island. While completing the course, you'll make real-world boating decisions as you unlock a series of immersive, role player–learning activities timed to occur at relevant points as boating adventure story unfolds. Each learning activity is aligned to a specific student performance objective and features a robust learning engine that teaches, assesses, and provides remediation based on your input. This innovative approach to online education was developed using research in cognitive and behavioral science to create a highly motivational learning experience. The ilearntoboat interactive course is the first and only interactive course that meets The National Association of State Boating Law Administrators (NASBLA) requirements for interactive learning aligned to the American National Standards Basic Boating Knowledge—Power. Course features: * No minimum time requirements * Go as fast as you want! * Real-life situations * Role-playing simulations * Earn achievements
Density Scanner
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Turn the iPhone in your pocket into a foam density scanner. Density Scanner measures a cut foam sample with the camera, asks for its weight, and calculates density in pounds per cubic foot (lb/ft³) — in seconds, entirely on your device. HOW IT WORKS • Scan four sides of the sample with on-screen alignment guides. • Review the measured length, width, and height — correct any dimension by hand, or drag the detected outline's corners onto the sample with a magnifier. • Enter the sample weight in grams. • Get the density instantly, saved with a timestamp. ACCURATE, FIELD-READY MEASUREMENT • LiDAR devices (Pro iPhones and iPads) measure scale from the depth sensor — no reference object needed. • Other devices use a credit-card-size reference for scale. • Manual entry is always available, including fractions like "3 1/16". • A built-in Calibration Check tunes accuracy to your device against an object of known size. • On LiDAR devices, a flatness check on the top and bottom faces flags samples with voids or uneven cuts that would throw off density. • Built for real, saw-cut field samples — not just clean lab cubes. TRACK AND EXPORT YOUR RESULTS • Persistent Job ID and optional Sample ID for organizing work and R&D. • Record ISO and Resin material, lot/batch, and expiration with every result. • Optional GPS location tags each result to its project site. • Every result is stored on-device, newest first — swipe to share, archive, or delete. • Export as CSV, PDF, or a date-stamped folder (CSV + PDF + scan photos) via email, message, or AirDrop. PRIVATE BY DESIGN All measurements, calculations, and storage happen on your device. Nothing is uploaded, and no account is required. Location, when enabled, is recorded only into your local results and shared only when you choose to export. BUILT-IN TUTORIAL A quick, replayable tutorial covers sample sizing for open- and closed-cell foam, lighting, and — most importantly — holding the phone vertical and square to the sample face for the best reading. Please note: density values are good-faith field estimates derived from camera-based measurements and user-entered weights, intended for general quality-assurance reference. They are not a substitute for calibrated laboratory equipment or applicable standard test methods. On the roadmap: optional cloud sync and a team dashboard for sharing results across a crew. Today the app works fully on-device, no account required.
Screenshots
Verdict
The clearest difference is price: ilearntoboat at Free against Density Scanner's $39.99. ilearntoboat also leads on iOS requirement (12.0 vs 17.0). On 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
ilearntoboat is free to download; Density Scanner costs $39.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | ilearntoboat | Density Scanner |
|---|---|---|
| Price | Free — better | $39.99 |
| Rating | 2.4 (442 ratings) — better | — |
| Positive reviews | 23.1% of reviews | — |
| Number of ratings | 442 — better | — |
| Update frequency | Every 6 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 129 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Kalkomey | Stephen Davis |
Bugs and requests
ilearntoboat
Reported bugs
3 issues- Unable to access final exam
- Logging issues and lost progress
- Compatibility problems on certain devices
Requested features
3 requests- Read-aloud option for text
- Ability to skip story and go straight to content
- Better customer support and responsiveness
Density Scanner
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ilearntoboat
No in-app purchases
Density Scanner
No in-app purchases
Questions
Is ilearntoboat free?
Is Density Scanner free?
Do ilearntoboat or Density Scanner have ads?
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