Comparison

Ruler+ Utility vs Ruler

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

Head to head
About

Ruler+ Utility

Transform your smartphone into a versatile measuring tool. Instantly measure the length of objects using your phone's screen, with options for fixed or scroll modes. Save your measurements and choose between centimeters or inches for precise results.

Highlights
  • Smartphone ruler
  • Fixed and scroll measurement modes
  • Save measurements
  • Centimeter and inch support
  • Fine-tune scale
  • Intuitive interface
Features
Read full description

This app transforms your smartphone into a handy ruler. Whenever you’re curious about the length of something, you can measure it instantly with just your smartphone! From a pencil on your desk to the thickness of a book, 'Ruler' is perfect for quickly checking lengths. Without any complex explanations or difficult features, just open the app and measure according to the scale. Its intuitive interface allows anyone to measure quickly and accurately. Measurement methods: 1) Fixed Ruler: Place the object you want to measure on your smartphone, touch the screen with your finger, and move it to the end of the object to measure its length. 2) Scroll Ruler: Use this method to measure objects longer than your smartphone. Place your smartphone next to the object, hold it with your thumb and middle finger, touch the screen with your index finger, and move the phone gradually to measure the length. Main Features: - Easily save the measurements you take - Measure in both centimeters (cm) and inches (inch) - Fine-tune the scale for more precise measurements - Choose between fixed and scroll modes depending on your needs Never worry about not having a ruler again. With 'Ruler', you can measure anything conveniently at any time. Experience smart measurement now!

About

Ruler

Measure objects and distances with an on-screen ruler and augmented reality. Supports inches and centimeters, with features for linear sizes, angles, area, volume, and more. Save your measurements for later use.

Highlights
  • On-screen ruler for small objects
  • Augmented Reality (AR) measuring
  • Measure linear sizes in cm/inches
  • Calculate angles, area, and volume
  • Save measurements
  • Generate plan projections
Features
Read full description

Measure everything with a beautiful on-screen ruler.  Choose between inches and centimeters.  Tap the screen to start using the best multi-touch measuring system and find the size of all curious objects around you.  Also with your camera measure everything accurate by using Augmented Reality (AR) feature. 1) Allows to tape measure linear sizes in cm, inches 2) With Bubble meter allows you to level objects horizontal 3) Save measurments 4) Allows to tape measure distance from device camera to a fixed point on the detected 3D plane. 5) Angle – allows to tape measure corners on 3D planes. 6) Area and Perimeter – allows to tape measure perimeter and area of the room. 7) Volume – allows to tape measure size of 3D objects. 8) Path – allows to calculate the length and area of the path. 9) Height – allows to tape measure height relative to the recognized surface. 10) Plan – generates plan projection for drawn objects and exports it . 11) On-screen Ruler app – measure small objects directly on the smartphone’s screen.

Screenshots

Ruler+ Utility4 screens
Ruler4 screens

Verdict

The call

The clearest difference is rating: Ruler at 4.2 against Ruler+ Utility's 3.0. Ruler also leads on in-app purchases (none vs 1) and ratings volume (405 vs 2). Ruler+ Utility's advantage is review sentiment (47% vs 14%). On price, ads, 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. Ruler+ Utility sells 1 one-off in-app purchase. Ruler asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ruler holds the better App Store score, 4.2 against 3.0. That said, the two scores are not equally well evidenced: Ruler has 405 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 47% of Ruler+ Utility's written reviews are positive against 14% of Ruler's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Ruler+ Utility ships an update every 40 months, Ruler every 14 months. The most recent releases landed on September 27, 2026 and September 30, 2026 respectively.

Scorecard6 real differences · 4 level
Ruler+ Utility versus Ruler: the parameters behind the verdict, then further details
ParameterRuler+ UtilityRuler
PriceFreeFree
Rating3.0 (2 ratings)4.2 (405 ratings) — better
Positive reviews46.7% of reviews — better14.3% of reviews
Number of ratings2405 — better
Update frequencyEvery 40 monthsEvery 14 months — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size24 MB6 MB
Age rating4+4+
DeveloperKyungjin LeeMatrix Software Co.

Customer experience

Ruler+ Utility

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews30 reviews
Positive46.7%
Neutral3.3%
Negative50.0%

Ruler

All ratings405 ratings
Positive78.8%
Neutral4.9%
Negative16.3%
Written reviews28 reviews
Positive14.3%
Neutral17.9%
Negative67.9%

Bugs and requests

Ruler+ Utility

Not enough reviews yet to summarise bugs or requests.

Ruler

Reported bugs

8 issues
  • App crashes on iPhone 17 and iPad
  • App crashes within 1 minute
  • AR mode not functional
  • Cannot switch to cm
  • Measurements are out of scale
Show 3 more
  • Centimeter measurement is wrong
  • Ruler markings are wrong (10ths instead of 16ths)
  • iPhone 14 Pro Max measured as over 9 inches

Requested features

7 requests
  • Fix crashing issues
  • Enable switching to metric (cm)
  • Improve AR mode usability
  • Add save and print functionality
  • Provide usage instructions
Show 2 more
  • Ensure accurate scaling for all devices
  • Fix ruler marking divisions

In-app purchases

1 purchases

Ruler+ Utility

One-time1
  • Remove Ads$1.99
None

Ruler

No in-app purchases

Questions

Is Ruler+ Utility free?
Ruler+ Utility is free to download, with in-app purchases available.
Is Ruler free?
Ruler is free to download, with no in-app purchases.
Which has better reviews, Ruler+ Utility or Ruler?
Ruler is rated higher. Ruler+ Utility averages 3.0 out of 5 from 2 ratings, while Ruler averages 4.2 from 405 ratings.
Do Ruler+ Utility or Ruler have ads?
Both Ruler+ Utility and Ruler show ads.
Which is updated more often, Ruler+ Utility or Ruler?
Ruler+ Utility ships an update every 40 months, and Ruler every 14 months. Most recently, Ruler+ Utility was updated on September 27, 2026 and Ruler on September 30, 2026.

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