Comparison

Protractor (Angle measurement) vs UnifAI

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

Head to head
About

Protractor (Angle measurement)

Measure angles of objects using your device's camera. This utility app acts as a digital protractor, allowing you to accurately determine angles in real-world scenarios. Perfect for when a physical protractor is unavailable.

Highlights
  • Camera-based angle measurement
  • Digital protractor functionality
  • Measure angles of objects
  • Real-world angle determination
Features
Read full description

You are there when you need a protractor? Here is the absence of a protractor, try using a protractor app. You can measure the angle of the object is reflected in the camera protractor. Try using a protractor protractor various apps, app.

About

UnifAI

Features
Read full description

Welcome to YPB UnifAI, the ultimate 3-in-1 app for product authentication! Say goodbye to separate apps and hello to an all-in-one solution for protecting your products and documents from fakes. With YPB UnifAI, you can access both MotifMicro and Tracer, two powerful authentication technologies, and ProtectCode with just one click. MotifMicro is a proprietary smartphone-readable authentication technology that uses AI to help detect invisible microparticles, making it ideal for high-speed production lines. It is designed to be invisible to the human eye, making it difficult to counterfeit products with MotifMicro technology. Our invisible microparticle technology is verified to meet FDA food contact requirements. With MotifMicro, you can authenticate your products with an unmodified smartphone, without the need for any additional attachments. Every scan is recorded and monitored using our cloud platform, YPB Connect. Protect your brand with YPB Tracer - the ultimate solution in anti-counterfeiting technology. Our invisible microparticle technology is verified to meet FDA food contact requirements and is virtually indestructible. With Tracer, your products can be easily authenticated using a custom Bluetooth-capable scanner and the YPB UnifAI app. Tracer is trusted by leading brands, governments, and financial institutions, ensuring high-level security for your products. Say goodbye to the risk of product forgery, potential financial consequences, and reputational damage - choose YPB Tracer for a robust and seamless solution in product security. With our ProtectCode feature, scanning QR codes has never been easier. Simply scan the code to instantly check its status and embedded data. But that's not all – our app also allows you to add data to inactive codes before activation, giving you, even more, control and flexibility. This powerful tool is perfect for businesses looking to streamline their QR code management and ensure that every code is working as intended. Try it out today and see the difference it can make! The YPB UnifAI app provides seamless access to YPB Connect, an online global dashboard that captures first-party data and stores valuable scanning data from every scan. YPB Connect is an AI-powered global dashboard for brands to protect their products and documents from counterfeits, with real-time tracking and monitoring provided by the integration of MotifMicro and YPB Tracer technology. This allows for the quick detection of suspicious activity and the prevention of counterfeits from reaching customers, promoting brand authenticity and security. By using digital codes and covert tracers, YPB Connect offers complete control over the supply chain and product distribution, ensuring transparency and peace of mind for customers. If you're interested in using YPB UnifAI to protect your products and documents, please feel free to contact us at marketing@ypbsystems.com for more information. The app requires a registered email for use, and it's only available for YPB trial clients at this time. So don't wait, take the first step in protecting your products and improving customer engagement today with YPB UnifAI! Disclaimer: Only items that are embedded with MotifMicro® and YPB Tracer® technology can be verified using the YPB UnifAI app and YPB scanners. To access the app, you must be a registered user with a YPB account.

Screenshots

Protractor (Angle measurement)4 screens
UnifAI4 screens

Verdict

The call

The clearest difference is ads: UnifAI at none against Protractor (Angle measurement)'s shown. UnifAI also leads on update cadence (fortnightly vs every 5 weeks) and iOS requirement (11.0 vs 13.0). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Protractor (Angle measurement) ships an update every 5 weeks, UnifAI fortnightly. The most recent releases landed on September 26, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 7 level
Protractor (Angle measurement) versus UnifAI: the parameters behind the verdict, then further details
ParameterProtractor (Angle measurement)UnifAI
PriceFreeFree
Rating3.4 (5 ratings) — better—
Positive reviews68.1% of reviews—
Number of ratings5 — better—
Update frequencyEvery 5 weeksFortnightly — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.011.0 — better
Further details — not scored
Size7 MB63 MB
Age rating4+4+
DeveloperEONSOFTYPB Group Ltd

Bugs and requests

Protractor (Angle measurement)

Reported bugs

8 issues
  • Camera is always blurry
  • Ads cover buttons
  • App is a ghost app, cannot open
  • Time limit makes it unusable
  • Measures only in radians (free)
Show 3 more
  • Protractor over camera view, no needle/indication
  • App is difficult to use
  • Hard to hold still without tripod

Requested features

10 requests
  • Ability to freeze image
  • Ability to use photos for measurement
  • Upload a still image and overlay protractor
  • Improve accuracy with shaky hands
  • Add option to take a picture and measure
Show 5 more
  • Stabilize the camera
  • Make numbers easier to read
  • Remove time limit on free version
  • Allow measurement in degrees for free
  • Delete purchase history

UnifAI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Protractor (Angle measurement)

No in-app purchases

None

UnifAI

No in-app purchases

Questions

Is Protractor (Angle measurement) free?
Protractor (Angle measurement) is free to download, with no in-app purchases.
Is UnifAI free?
UnifAI is free to download, with no in-app purchases.
Do Protractor (Angle measurement) or UnifAI have ads?
Protractor (Angle measurement) shows ads; UnifAI does not.
Which is updated more often, Protractor (Angle measurement) or UnifAI?
Protractor (Angle measurement) ships an update every 5 weeks, and UnifAI fortnightly. Most recently, Protractor (Angle measurement) was updated on September 26, 2026 and UnifAI on September 12, 2026.

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