Comparison

Measure Angles vs Bolt Reader®

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

Bolt Reader®

This application provides users with real-time bolt tension data through intuitive bar graphs. It is specifically designed to work with Bolt-Cap Module devices from Transmission Dynamics, helping users quickly identify screws needing attention.

Highlights
  • Real-time bolt tension information
  • Bar graph data visualization
  • Identify screws requiring attention
  • Designed for Bolt-Cap Module devices
  • Works with Transmission Dynamics hardware
Features
Read full description

Thanks to the innovative undertaking of creating the Bolt Reader® application, users have constant access to information on bolt tension. Information is presented in the form of bar graphs, which allows you to quickly spot screws that require attention. This application is specifically designed for Bolt-Cap Module devices produced by Transmission Dynamics. Transmission Dynamics; Redefining the Status Quo

Screenshots

Measure Angles4 screens
Bolt Reader®4 screens

Verdict

The call

The clearest difference is rating: Bolt Reader® at 4.7 against Measure Angles's 4.2. Bolt Reader® also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). Measure Angles's advantage is ratings volume (2K vs 7) and update cadence (fortnightly vs every 5 weeks). On price, 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

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 and Bolt Reader® sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Bolt Reader® holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Measure Angles has 2K ratings behind it against 7, so its average is the more settled of the two.

UpkeepUpdate frequency

Measure Angles ships an update fortnightly, Bolt Reader® every 5 weeks. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

Scorecard6 real differences · 4 level
Measure Angles versus Bolt Reader®: the parameters behind the verdict, then further details
ParameterMeasure AnglesBolt Reader®
PriceFreeFree
Rating4.2 (2K ratings)4.7 (7 ratings) — better
Positive reviews47.0% of reviews—
Number of ratings2K — better7
Update frequencyFortnightly — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS16.614.0 — better
Further details — not scored
Size46 MB24 MB
Age rating4+4+
DeveloperWHATSTICKER APPS SRLTransmission Dynamics

Customer experience

Measure Angles

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

Bolt Reader®

All ratings6 ratings
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

Bolt Reader®

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
1 purchases

Bolt Reader®

One-time1
  • Full version$49.99

Questions

Is Measure Angles free?
Measure Angles is free to download, with in-app purchases available.
Is Bolt Reader® free?
Bolt Reader® is free to download, with in-app purchases available.
Which has better reviews, Measure Angles or Bolt Reader®?
Bolt Reader® is rated higher. Measure Angles averages 4.2 out of 5 from 2K ratings, while Bolt Reader® averages 4.7 from 7 ratings.
Do Measure Angles or Bolt Reader® have ads?
Measure Angles shows ads; Bolt Reader® does not.
Which is updated more often, Measure Angles or Bolt Reader®?
Measure Angles ships an update fortnightly, and Bolt Reader® every 5 weeks. Most recently, Measure Angles was updated on October 22, 2026 and Bolt Reader® on October 20, 2026.

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