Comparison

Angle Gradient Inclinometer vs Measuring Tape, Photo Ruler

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

Head to head
About

Angle Gradient Inclinometer

Easily measure tilt angles with this free protractor app. It displays inclination from 0 to 359 degrees, along with gradient percentages and angles summing to 180 or 360 degrees. Switch to theodolite mode to set a specified angle to zero.

Highlights
  • Measure tilt angles 0-359 degrees
  • Display gradient percentage
  • Show sum angles (180/360)
  • Theodolite mode
  • Set specified angle to zero
Features
Read full description

Simple tilt angle protractor free application that can easily measure tilt simply by tilting the device. The angle of inclination measured from 0 degree to 359 degrees, converted gradient (%), angle at which sum is 180 degrees / 360 degrees are displayed at the same time. You can switch to the theodolite, the specified angle can be set to 0 degree. ( 45 Degrees = Gradient 100 % )

About

Measuring Tape, Photo Ruler

This app offers precise measurements using augmented reality and on-screen tools. It caters to both professional and everyday needs with features like a flexible measuring tape, bubble level, and photo ruler. Save and manage your measurements within projects for easy access.

Highlights
  • Augmented reality measurements
  • On-screen ruler (1D/2D)
  • Photo ruler for object measurement
  • Flexible measuring tape for curved objects
  • Bubble level for alignment
  • Save and manage measurements in projects
Features
Read full description

Prime Ruler – A Versatile Tool for Accurate Measurements with AR and Traditional Features! Prime Ruler combines augmented reality (AR) technology and on-screen tools to make measurements as convenient and precise as possible. With a redesigned interface and new features, the app is the perfect choice for both professional tasks and everyday use. Whether you're working on construction and design projects or need quick measurements at home, Prime Ruler has everything you need for accurate and easy measurements in one app! What’s New? -Completely updated interface: more intuitive and user-friendly. -Flexible measuring tape: easily measure curved objects. -Bubble Level: Ensure perfect alignment and leveling for any surface. -Projects: save, edit, and manage your measurements. -On-screen ruler (1D/2D): measure directly on your device’s screen. -Photo ruler: measure objects using photos. -Plan mode: visualize results and plan your projects. Key Features: AR Ruler: Measure lengths, areas, angles, and volumes using augmented reality. Distance Meter: Determine distances to objects. Height: Measure the height of objects relative to a surface. Area and Perimeter: Easily calculate surface parameters. Flexible Measuring Tape: Perfect for non-standard and curved shapes. Bubble Level: A precise tool for checking horizontal and vertical alignment. Surface Level: Check the flatness of horizontal and vertical surfaces. Angle Lock: Ideal for repeated measurements, tiling, or furniture assembly. Slope Measurement: Determine angles of inclination, from small to steep. On-Screen Ruler: Measure small objects by placing them directly on your device’s screen. Photo Ruler: Measure objects using photos and reference items. Projects: Create and save measurements for long-term tasks. How Prime Ruler Works: AR Tools: Activate your camera, aim at a surface, and choose the appropriate tool. Photo Ruler: Take a picture of the object, select a reference item (like a credit card or coin), and adjust markers for accurate measurements. On-Screen Ruler: Place the object on your screen and adjust the boundaries to get the result. Bubble Level: Use your device’s sensors to check if a surface is perfectly horizontal or vertical. With Prime Ruler, you’ll always have an accurate measurement tool at your fingertips! Subscription: Premium Subscription with 3 day free trial: • No ads • Unlimited number of projects Price may vary by country. You won’t be charged if you cancel at least 24 hours before the end of trial period. Active subscription will automatically renew unless canceled at least 24 hours before the end of the current active period (year). You can manage subscriptions in your iTunes Account Settings. Subscription is charged to your credit card through your iTunes account. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy - https://www.grymalaltd.com/

Screenshots

Angle Gradient Inclinometer1 screens
Measuring Tape, Photo Ruler4 screens

Verdict

The call

The clearest difference is in-app purchases: Angle Gradient Inclinometer at none against Measuring Tape, Photo Ruler's 14. Angle Gradient Inclinometer also leads on review sentiment (51% vs 39%) and iOS requirement (13 vs 16). Measuring Tape, Photo Ruler's advantage is update cadence (monthly vs every 8 months) and ratings volume (2.6K vs 314). On price, rating, ads 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. Measuring Tape, Photo Ruler sells 12 in-app purchases, starting at $4.99 per 7 days. Angle Gradient Inclinometer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Angle Gradient Inclinometer holds the better App Store score, 4.3 against 4.2. That said, the two scores are not equally well evidenced: Measuring Tape, Photo Ruler has 2.6K ratings behind it against 314, so its average is the more settled of the two. Written reviews point the same way: 51% of Angle Gradient Inclinometer's written reviews are positive against 39% of Measuring Tape, Photo Ruler's.

UpkeepUpdate frequency

Angle Gradient Inclinometer ships an update every 8 months, Measuring Tape, Photo Ruler monthly. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
Angle Gradient Inclinometer versus Measuring Tape, Photo Ruler: the parameters behind the verdict, then further details
ParameterAngle Gradient InclinometerMeasuring Tape, Photo Ruler
PriceFreeFree
Rating4.3 (314 ratings) — better4.2 (2.6K ratings)
Positive reviews51.1% of reviews — better39.2% of reviews
Number of ratings3142.6K — better
Update frequencyEvery 8 monthsMonthly — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13 — better16
Further details — not scored
Size11 MB296 MB
Age rating4+4+
DeveloperSHIGETO TAKAGIGrymala sp. z o.o.

Customer experience

Angle Gradient Inclinometer

All ratings295 ratings
Positive83.7%
Neutral4.1%
Negative12.2%
Written reviews45 reviews
Positive51.1%
Neutral15.6%
Negative33.3%

Measuring Tape, Photo Ruler

All ratings2,627 ratings
Positive79.4%
Neutral3.6%
Negative17.0%
Written reviews291 reviews
Positive39.2%
Neutral2.7%
Negative58.1%

Bugs and requests

Angle Gradient Inclinometer

Not enough reviews yet to summarise bugs or requests.

Measuring Tape, Photo Ruler

Reported bugs

3 issues
  • Ruler measurements not to scale
  • Camera feature not working properly
  • App not recognizing reference objects correctly

Requested features

3 requests
  • Add more measurement units (e.g. inches)
  • Improve user interface and usability
  • Fix compatibility issues with newer devices

In-app purchases

None

Angle Gradient Inclinometer

No in-app purchases

12 purchases

Measuring Tape, Photo Ruler

Subscriptions11
  • Ruler App Weekly$4.997 Days
  • Premium Monthly3 Days trial$5.001 Month
  • Premium Monthly2 variants$5.001 Month
Show 8 more
  • Premium 3 Monthly3 Days trial$10.003 Months
  • Special offer$10.001 Year
  • Ruler App Weekly3 Days trial$12.997 Days
  • Premium3 Days trial$19.001 Year
  • Premium Yearly3 Days trial$20.001 Year
  • Premium Yearly$20.001 Year
  • Premium Yearly3 Days trial2 variants$26.001 Year
  • Premium Yearly$89.991 Year
One-time1
  • Premium PRO$7.99

Questions

Is Angle Gradient Inclinometer free?
Angle Gradient Inclinometer is free to download, with no in-app purchases.
Is Measuring Tape, Photo Ruler free?
Measuring Tape, Photo Ruler is free to download, with in-app purchases available.
Which has better reviews, Angle Gradient Inclinometer or Measuring Tape, Photo Ruler?
Angle Gradient Inclinometer is rated higher. Angle Gradient Inclinometer averages 4.3 out of 5 from 314 ratings, while Measuring Tape, Photo Ruler averages 4.2 from 2.6K ratings.
Do Angle Gradient Inclinometer or Measuring Tape, Photo Ruler have ads?
Both Angle Gradient Inclinometer and Measuring Tape, Photo Ruler show ads.
Which is updated more often, Angle Gradient Inclinometer or Measuring Tape, Photo Ruler?
Angle Gradient Inclinometer ships an update every 8 months, and Measuring Tape, Photo Ruler monthly. Most recently, Angle Gradient Inclinometer was updated on October 26, 2026 and Measuring Tape, Photo Ruler on October 29, 2026.

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