Comparison

Measure Angles vs NDT X

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

Head to head
About

Measure Angles

This app transforms your device into a versatile measuring tool. It offers precise angle readings with a digital protractor and bubble level, along with AR-powered distance and volume measurements. Ideal for professionals, DIY enthusiasts, and everyday tasks requiring accuracy.

Highlights
  • Digital protractor for angle measurement
  • Bubble level for surface flatness
  • AR-powered distance and volume estimation
  • Integrated ruler and tape measure
  • Compass and altimeter
  • Timer and audio meter
Features
Read full description

Measure Angles – Bubble Level turns your device into a powerful and versatile tool for precise angle measurement. It includes both a digital protractor and a bubble level, making it perfect for professionals, makers, and everyday users who need accurate angle readings for any task. Since 2016, Measure Angles - Bubble Level has been trusted by over 1.5 Milion users worldwide, this app combines advanced AR technology with a wide range of measurement tools to ensure accurate results in any situation — all with a simple tap on your screen. Key features: -2D Level Mode (Surface Level / Bubble Mode) – Measures the flatness or inclination of a surface, like a traditional spirit level. -Protractor Mode (Angle Finder / Protractor) – Measures angles between objects or surfaces accurately. -LED – Activates the device’s flashlight for visibility in dark environments. -Compass – Displays cardinal directions using the device’s built-in magnetic sensor. -Protractor – Another tool for measuring angles, useful for precise alignment tasks. -Ruler – Allows you to measure small distances directly on your device’s screen. -Camera Ruler – Uses the camera and AR to estimate real-world distances. -Timer – Multiple countdowns and stopwatch tool for timing tasks. -Altimeter – Displays your current altitude based on GPS or barometric pressure. -Audio Meter – Measures ambient noise levels in decibels using your microphone. Always 100% precise: Measure Angles - Bubble Level automatically adjusts to your device’s size and resolution for maximum accuracy. But that’s not just it! A Premium subscription to Measure Angles – Bubble Level will also grant you access to Tape Measure - Ruler - AR APP! Measure Angles - Bubble Level is your go-to tool for precise angle measurements, featuring an easy-to-use bubble level and digital protractor. Paired with Tape Measure – Ruler – AR App, which lets you accurately measure distances, heights, and 3D volumes like cubes and circles, this bundle gives you everything you need for full 360° measurement precision. Perfect for DIY, design, or professional use, this bundle will allow you to create and visualize with great precision the house and projects of your dreams! Privacy Policy: https://magic-cake-e95.notion.site/IOS-Measure-Angles-Bubble-Level-Privacy-Policy-23fcf6557a0880d9bb2fe9c37e0ae881 --- Terms & Conditions: https://magic-cake-e95.notion.site/IOS-Measure-Angles-Bubble-Level-Terms-Conditions-23fcf6557a0880179abdcee4e3dc715a If you have any questions or feedbacks, please contact us at ruler.measure.info@gmail.com Subscribe to access to premium app features; subscription details are the following: -Length: weekly or yearly -Free trial: only on selected subscriptions -Your payment will be charged to your iTunes Account as soon as you confirm your purchase -You can manage your subscriptions and turn off auto-renewal from your Account Settings after the purchase -Your subscription will renew automatically, unless you turn off auto-renew at least 24 hours before the end of the current period -The cost of renewal will be charged to your account in the 24 hours prior to the end of the current period -When canceling a subscription, your subscription will stay active until the end of the period. Auto-renewal will be disabled, but the current subscription will not be refunded -Any unused portion of a free trial period, if offered, will be forfeited when purchasing a subscription

About

NDT X

This app provides essential tools for x-ray calculations, including geometric and CT calculations, image viewing, and quality control. It offers explanations for formulas and supports common detectors for easier use.

Highlights
  • TIFF and DICONDE image viewer
  • Geometric calculations
  • X-ray standards support
  • Image quality control
  • CT calculations
  • Formula explanations
  • Detector selection tool
Features
Read full description

NDT X-ray Toolbox is a useful app for x-ray calculations everyday needed. NDT X-ray Toolbox contains: - An image viewer for TIFF and DICONDE x-ray images - Geometric Calculations (Calculation of M, M opt, Ug, Ut) - X-ray Standards (API 5L, ISO 10893-7, ISO 17636-2 including SNRn Calculation) - Image Quality Control (ISO 19232-1 / EN 462-1, ISO 19232-2) - CT Calculations (Calculation of effective Pixel Size, Number of Pictures, Reconstructed Data Size, Best voxel resolution, Tube Voltage) - all Formulas and Shortcuts are given and explained so that if you don't know what a particular Formula/Shortcut means, you can have a quick look in our app, too. We are working on additional features, so it will be updated soon. Also some nice tools are included, e.g. that you can choose, which Detector (the most common Detectors are included) you have, so that you do not have to check out and manually write the Pixel Pitch if you know which Detector you have. Besides NDT X-ray Toolbox is convincing with a modern design that let it make fun to use it.

Screenshots

Measure Angles4 screens
NDT X4 screens

Verdict

The call

The clearest difference is review sentiment: NDT X at 100% against Measure Angles's 47%. NDT X also leads on rating (5.0 vs 4.2) and in-app purchases (none vs 10). Measure Angles's advantage is ratings volume (2K vs 3). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Measure Angles sells 10 in-app purchases, starting at $2.99 per 7 days. NDT X asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

NDT X holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Measure Angles has 2K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 47% of Measure Angles's written reviews are positive against 100% of NDT X's.

UpkeepUpdate frequency

Measure Angles ships an update fortnightly, NDT X every 2 weeks. The most recent releases landed on October 19, 2026 and October 14, 2026 respectively.

Scorecard7 real differences · 3 level
Measure Angles versus NDT X: the parameters behind the verdict, then further details
ParameterMeasure AnglesNDT X
PriceFreeFree
Rating4.2 (2K ratings)5.0 (3 ratings) — better
Positive reviews47.0% of reviews100.0% of reviews — better
Number of ratings2K — better3
Update frequencyFortnightlyEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS16.613.0 — better
Further details — not scored
Size46 MB83 MB
Age rating4+4+
DeveloperWHATSTICKER APPS SRLVisiconsult X-ray Systems & Solutions GmbH

Customer experience

Measure Angles

All ratings1,969 ratings
Positive79.2%
Neutral5.2%
Negative15.6%
Written reviews151 reviews
Positive47.0%
Neutral6.6%
Negative46.4%

NDT X

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Measure Angles

Reported bugs

4 issues
  • Angle appears reversed or flipped
  • Angle locks too quickly
  • App crashes on launch
  • Measurements are inaccurate

Requested features

6 requests
  • Panoramic measurement tool
  • Surround audio setup feature
  • Ability to reset protractor to 0 degrees
  • Black/white display for better readability
  • Support for iPad split-screen
Show 1 more
  • Instructions/tutorial for using the app

NDT X

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Measure Angles

Subscriptions6
  • Weekly Premium7 Days trial$2.997 Days
  • Weekly Premium$2.997 Days
  • Weekly premium$4.997 Days
Show 3 more
  • Weekly premium trial7 Days trial$4.997 Days
  • Yearly premium trial7 Days trial$29.991 Year
  • Yearly premium$29.991 Year
One-time4
  • Unlock all tools$1.99
  • No ads$2.99
  • Premium Discount$2.99
Show 1 more
  • Premium Edition$3.99
None

NDT X

No in-app purchases

Questions

Is Measure Angles free?
Measure Angles is free to download, with in-app purchases available.
Is NDT X free?
NDT X is free to download, with no in-app purchases.
Which has better reviews, Measure Angles or NDT X?
NDT X is rated higher. Measure Angles averages 4.2 out of 5 from 2K ratings, while NDT X averages 5.0 from 3 ratings.
Do Measure Angles or NDT X have ads?
Measure Angles shows ads; NDT X does not.
Which is updated more often, Measure Angles or NDT X?
Measure Angles ships an update fortnightly, and NDT X every 2 weeks. Most recently, Measure Angles was updated on October 19, 2026 and NDT X on October 14, 2026.

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