Comparison

Protractor for Angle Measuring vs NDT Vault

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Protractor for Angle Measuring

Transform your iPhone into a precision angle measuring tool. Easily measure angles in real-time using touch or camera modes, and even analyze angles in existing photos. Customize your tools for a seamless experience.

Highlights
  • Real-time angle measurement
  • Touch and camera modes
  • Measure angles in photos
  • Simultaneous unlimited angle measurement
  • Tool color customization
  • Plumb bob pendulum for tilt
Features
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Your pocket angle expert! Transform your iPhone into a precision tool for real-time angle measurement. Simply tap, snap, and assess angles effortlessly with our intuitive touch and camera modes. Measure unlimited angles simultaneously, customize tools, and enjoy the perfect blend of accuracy and simplicity. Ideal for architects or anyone seeking quick, reliable measurements. Embrace the power of Protractor for fast, on-the-go angle assessments! Key Features: • Touch Measure: Tap the screen to set angles (use the camera view). • Plumb Bob Pendulum: Perfect for determining tilt (calibrate for accuracy). • Angle Measurement in Photos and from Camera. • Simultaneous Measurement of Unlimited Angles. • Tool Color Customization for Visual Convenience. Privacy Policy: https://appliks.com/privacy-policy ​​Terms of Use: https://appliks.com/terms-of-use

About

NDT Vault

Features
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NDT Vault is a professional-grade inspection documentation tool built for Non-Destructive Testing technicians and engineers. Capture defects, manage equipment, generate reports, and collaborate with your team — all from your iPhone or iPad. CAPTURE & DOCUMENT DEFECTS Photograph defects directly within projects using the advanced multi-lens camera. Each photo is automatically watermarked with the defect ID, category, dimensions, and timestamp for instant traceability. 6 INSPECTION REPORT TYPES Generate standardized inspection records for MT, PT, PA, UT (Thickness), UT (Weld), and Visual inspections. Each form follows industry conventions with fields for procedures, acceptance criteria, test media, equipment used, calibration references, and detailed findings. EQUIPMENT TRACKING Maintain a complete inventory of your NDT instruments. Track serial numbers, manufacturers, calibration dates, and certificate numbers. Color-coded status indicators show at a glance which equipment is calibrated, due soon, or overdue. INTERACTIVE DIAGRAMS Import site diagrams or schematics and place defect markers directly on them. Tap any marker to jump to the full defect record with photos, dimensions, and review status. REVIEW WORKFLOW Mark defects as Repaired, Progression, Static, or Missed. Attach follow-up photos and notes to build a complete review history for every defect. EXPORT & SHARE Generate PDF reports or ZIP archives with watermarked or original photos. Share projects with teammates via 6-character codes. Collaborative projects sync in real-time so your entire team stays current. CLOUD COLLABORATION Convert any project to collaborative mode. Team members join with a simple code and all changes sync automatically. View shared projects on the web at ndtvault.botor.io. OFFLINE-FIRST Every feature works without an internet connection. All data is stored securely on your device. Cloud features activate when connectivity is available. BUILT FOR THE FIELD Dark interface designed for industrial environments. Fast camera access, minimal taps to document a defect, and efficient data entry for inspection forms. Why this works: - First paragraph is the hook — tells who it's for and what it does - ALL CAPS headers are scannable (Apple standard practice) - Each section is 2-3 lines max — no walls of text - Ends with the unique selling point (offline + dark UI for field work) - Keywords naturally embedded (NDT, inspection, defect, calibration, etc.)

Screenshots

Protractor for Angle Measuring4 screens
NDT Vault4 screens

Verdict

The call

The clearest difference is in-app purchases: NDT Vault at none against Protractor for Angle Measuring's 5. NDT Vault also leads on ads (none vs shown). On price, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Protractor for Angle Measuring sells 5 in-app purchases, starting at $0.99 per 7 days. NDT Vault asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Protractor for Angle Measuring versus NDT Vault: the parameters behind the verdict, then further details
ParameterProtractor for Angle MeasuringNDT Vault
PriceFreeFree
Rating4.5 (1K ratings) — better—
Positive reviews49.4% of reviews—
Number of ratings1K — better—
Update frequencyEvery 2 weeks—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better17.0
Further details — not scored
Size112 MB2 MB
Age rating4+4+
DeveloperAppLiks Sp. z O.O.EDISON BOTOR

Bugs and requests

Protractor for Angle Measuring

Reported bugs

2 issues
  • Protractor tool is hard to use and requires multiple tries
  • Angle measurements do not match real-world angles

Requested features

3 requests
  • Add more instructions and guidance for using the protractor tool
  • Improve the zoom functionality when measuring angles in photos
  • Enhance the accuracy of angle measurements

NDT Vault

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Protractor for Angle Measuring

Subscriptions5
  • Weekly Access$0.997 Days
  • Weekly Access with Trial3 Days trial$1.997 Days
  • Weekly Access$1.997 Days
Show 2 more
  • Yearly Access$3.991 Year
  • Yearly Access$4.991 Year
None

NDT Vault

No in-app purchases

Questions

Is Protractor for Angle Measuring free?
Protractor for Angle Measuring is free to download, with in-app purchases available.
Is NDT Vault free?
NDT Vault is free to download, with no in-app purchases.
Do Protractor for Angle Measuring or NDT Vault have ads?
Protractor for Angle Measuring shows ads; NDT Vault does not.

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