Comparison

Trig Instruments Toolbox vs Protractor for Angle Measuring

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

Head to head
About

Trig Instruments Toolbox

This utility app provides a collection of essential field tools, including a ratio to angle converter, inclinometer, tally counter, and protractor. It leverages your device's sensors for accurate estimations and calculations, reducing the need to carry multiple physical instruments.

Highlights
  • Ratio to Angle converter
  • Inclinometer
  • Tally counter
  • Protractor
  • Uses device sensors for accuracy
  • New free tools added regularly
Features
Read full description

Each tool is designed to be useful in the field, so you don't need to bring a pile of equipment and notes with you to do estimations and calculations. Taking advantage of your device's built in gyro, compass and camera, to give the most accurate results. The Trig Tool Box contains: • Ratio to Angle converter • Inclinometer • Tally counter • Protractor With more free tools being added all the time. Download now to keep this tool box in your back pocket - you never know when they will come in handy.

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
Read full description

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

Screenshots

Trig Instruments Toolbox4 screens
Protractor for Angle Measuring4 screens

Verdict

The call

The clearest difference is rating: Protractor for Angle Measuring at 4.5 against Trig Instruments Toolbox's 2.6. Protractor for Angle Measuring also leads on update cadence (every 2 weeks vs every 27 months) and ratings volume (1K vs 5). Trig Instruments Toolbox's advantage is in-app purchases (none vs 5) and ads (none vs shown). On price, review sentiment, 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. Trig Instruments Toolbox asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Protractor for Angle Measuring holds the better App Store score, 4.5 against 2.6. That said, the two scores are not equally well evidenced: Protractor for Angle Measuring has 1K ratings behind it against 5, so its average is the more settled of the two. Written reviews split almost evenly too, at 50% and 49% positive.

UpkeepUpdate frequency

Trig Instruments Toolbox ships an update every 27 months, Protractor for Angle Measuring every 2 weeks. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

Scorecard6 real differences · 4 level
Trig Instruments Toolbox versus Protractor for Angle Measuring: the parameters behind the verdict, then further details
ParameterTrig Instruments ToolboxProtractor for Angle Measuring
PriceFreeFree
Rating2.6 (5 ratings)4.5 (1K ratings) — better
Positive reviews50.0% of reviews — better49.4% of reviews
Number of ratings51K — better
Update frequencyEvery 27 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better16.6
Further details — not scored
Size54 MB112 MB
Age rating4+4+
DeveloperStevens Marketing LimitedAppLiks Sp. z O.O.

Customer experience

Trig Instruments Toolbox

All ratings5 ratings
Positive40.0%
Neutral0.0%
Negative60.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Protractor for Angle Measuring

All ratings1,023 ratings
Positive88.5%
Neutral4.6%
Negative6.9%
Written reviews77 reviews
Positive49.4%
Neutral5.2%
Negative45.5%

Bugs and requests

Trig Instruments Toolbox

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Trig Instruments Toolbox

No 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

Questions

Is Trig Instruments Toolbox free?
Trig Instruments Toolbox is free to download, with no in-app purchases.
Is Protractor for Angle Measuring free?
Protractor for Angle Measuring is free to download, with in-app purchases available.
Which has better reviews, Trig Instruments Toolbox or Protractor for Angle Measuring?
Protractor for Angle Measuring is rated higher. Trig Instruments Toolbox averages 2.6 out of 5 from 5 ratings, while Protractor for Angle Measuring averages 4.5 from 1K ratings.
Do Trig Instruments Toolbox or Protractor for Angle Measuring have ads?
Protractor for Angle Measuring shows ads; Trig Instruments Toolbox does not.
Which is updated more often, Trig Instruments Toolbox or Protractor for Angle Measuring?
Trig Instruments Toolbox ships an update every 27 months, and Protractor for Angle Measuring every 2 weeks. Most recently, Trig Instruments Toolbox was updated on October 7, 2026 and Protractor for Angle Measuring on October 20, 2026.

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