Comparison

Ruler+ Utility vs SmartRuler

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

SmartRuler

This app uses augmented reality to measure distances and dimensions of objects with your phone. It can calculate length, height, area, perimeter, and angles for free, acting as a virtual tape measure and ruler.

Highlights
  • Augmented reality measurement
  • Length, height, area, perimeter calculation
  • Angle measurement
  • Virtual tape measure
  • Room dimension measurement
  • Distance calculator
Read full description

SmartRuler - measuring tape, which allows you to measure distance and dimension of an object. Length, Height, Area, Perimeter, Angle measurement for free. Ruler app works tape measure calculator. Room measurement, distance calculator. With SmartRuler’ precise measurement technology, you can obtain the measurement of any given target length: a bed’s width, a wardrobe’s height, a room’s dimensions. All you have to do is to take two “snaps” – one at the starting point of the object and the second one at the ending point – and let the app do the rest! SmartRuler is the augmented reality tape measure and ruler in your pocket! Measure things with your phone! PRICE AND TERMS: SmartRuler offers the following subscriptions options: * 1 week: $2.99 (USD) after 3 days trial period These prices apply to United States residents. Prices may vary in other countries respecting your local currency exchange rate. Your subscription will be charged to your iTunes account. At the end of the term, unless auto-renewables subscriptions are disabled, your subscription will automatically renew in your iTunes account. You will be charged for the regular price of your subscription within 24 hours prior to the end of the current term. You can turn off automatic renewal in your iTunes account settings at any time, but you must do so at least 24 hours before the end of the current term. Refunds will not be provided for the unused portion of any term. Privacy policy, terms, and conditions: http://dashvlas.com/apps/privacy http://dashvlas.com/apps/terms

Screenshots

Ruler+ Utility4 screens
SmartRuler2 screens

Verdict

The call

The clearest difference is rating: SmartRuler at 3.6 against Ruler+ Utility's 3.0. SmartRuler also leads on review sentiment (87% vs 47%) and ads (none vs shown). Ruler+ Utility's advantage is monetization model (free with in-app purchases vs subscription). On price, in-app purchases, 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 and SmartRuler sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

SmartRuler holds the better App Store score, 3.6 against 3.0. That said, the two scores are not equally well evidenced: SmartRuler has 95 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 47% of Ruler+ Utility's written reviews are positive against 87% of SmartRuler's.

UpkeepUpdate frequency

Ruler+ Utility ships an update every 40 months, SmartRuler every 3 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
Ruler+ Utility versus SmartRuler: the parameters behind the verdict, then further details
ParameterRuler+ UtilitySmartRuler
PriceFreeFree
Rating3.0 (2 ratings)3.6 (95 ratings) — better
Positive reviews46.7% of reviews86.8% of reviews — better
Number of ratings295 — better
Update frequencyEvery 40 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size24 MB7 MB
Age rating4+4+
DeveloperKyungjin LeeKodeon, Inc.

Customer experience

Ruler+ Utility

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

SmartRuler

All ratings95 ratings
Positive62.1%
Neutral3.2%
Negative34.7%
Written reviews68 reviews
Positive86.8%
Neutral1.5%
Negative11.8%

Bugs and requests

Ruler+ Utility

Not enough reviews yet to summarise bugs or requests.

SmartRuler

Reported bugs

3 issues
  • Screen does not fix points
  • App is paid, don't fall for it
  • Hidden charges, inaccurate measurements

Requested features

2 requests
  • Clearer indication of measurement readouts
  • Icon for angle measurements

In-app purchases

1 purchases

Ruler+ Utility

One-time1
  • Remove Ads$1.99
3 purchases

SmartRuler

Subscriptions3
  • Become Premium3 Days trial$2.997 Days
  • SmartRuler Annually3 Days trial$19.991 Year
  • SmartRuler Premium3 Days trial$19.991 Year

Questions

Is Ruler+ Utility free?
Ruler+ Utility is free to download, with in-app purchases available.
Is SmartRuler free?
SmartRuler is free to download, with in-app purchases available.
Which has better reviews, Ruler+ Utility or SmartRuler?
SmartRuler is rated higher. Ruler+ Utility averages 3.0 out of 5 from 2 ratings, while SmartRuler averages 3.6 from 95 ratings.
Do Ruler+ Utility or SmartRuler have ads?
Ruler+ Utility shows ads; SmartRuler does not.
Which is updated more often, Ruler+ Utility or SmartRuler?
Ruler+ Utility ships an update every 40 months, and SmartRuler every 3 weeks. Most recently, Ruler+ Utility was updated on October 24, 2026 and SmartRuler on October 29, 2026.

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