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Top 9 Best Ruler & Measurement Android Apps – 2021

AH measurement ruler apps Smart Tools
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Your smartphone can not only serve you as a digital ruler, but it can also help you measure various other things. Smartphones are very powerful tools, especially if you pair them up with good apps. In this article, we’ll take a look at some of the best ruler and measurement apps for Android. Do note that we’ve included 9 apps to the list below, and that those apps are not listed in a specific order.

These are only our personal choices, there are many more ruler and measurement apps available in the Play Store, of course. That being said, you’ll find quite a bit information down below. We’ve included not only descriptions for every app that is listed, but also some screenshots / promo videos, and various other information regarding every single of those applications.

Top 9 Best Ruler & Measurement Android Apps 2021

Below is a quick overview of the top 9 best ruler & measurement Android apps for 2021, including any download and in-app purchase costs.

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Download CostIn-app cost (per item)
Ruler by Xalpha Lab
Ruler App by Nikola Kosev$0.99-$5.99
AR Ruler App by Grymala$0.99-$89.99
ARPlan 3D$9.99-$89.99
Smart Tools 2$3.50
Laser Level by EXA Tools$0.99
HOVER
Angle Tool
Clinometer

Top 9 Best Ruler & Measurement Android Apps 2021 Downloads

Below is a little more information on each app, a suggestion for the type of user the app is best suited to, and a direct link for easy downloading.

All download links go to the app’s Google Play Store listing. Users are always recommended to download apps from Google Play or an authorized app store.

Best Ruler Android App For Most Users

Ruler by Xalpha Lab app grid image

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Ruler by Xalpha Lab

  • Price: Free to download
  • In-app purchases: No
  • Android version: 4.1+

If you’re looking for a simple digital ruler on your phone, this is the way to go. Ruler by Xalpha Lab has been around for quite some time, and the app is quite straightforward. To make things even better, it is free to use, and it does not include ads, nor does it have in-app purchases. In other words, the app is completely free. Before you start using this app, you’ll need to calibrate it real quick. You can use your credit card to do it, or any other similar card. You can even use a coin, actually, or a real ruler.

This app allows you to pick units that suit you, for your measurements. You can choose between fractional inches, decimal inches, centimeters, and millimeters. The app does come with a night mode as well, which should help with battery life on AMOLED displays. It will also suit your eyes at night.

Download Ruler by Xalpha Lab

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Best-Designed Android Ruler App

Ruler App by Nikola Kosev

  • Price: Free to download
  • In-app purchases: Yes
  • Android version: Varies with device

If you’re looking for an alternative to the first app we’ve mentioned, because you don’t like its design, well, this is a great way to go. Ruler App by Nikola Kosev may look more appealing to some of you. You can choose between inches and centimeters, depending on where you live. The app works well on both smartphones and tablets, as it has been designed with both small and large displays in mind.

The app does include measurement history, and it allows you to copy measured length to your phone’s clipboard, so you can paste it elsewhere. The app does include a multi-touch caliper tool functionality. If you find the app inaccurate at first, you can calibrate it real easy, and that’s best to do with a real ruler. The instructions are included in the app, in case you need them.

Download Ruler App by Nikola Kosev

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Best AR Ruler Android App

AR Ruler App by Grymala

  • Price: Free to download
  • In-app purchases: Yes
  • Android version: 8.0+

We’ve seen quite a few successful AR (Augmented Reality) apps in the market, well, AR can be used for various other things. Measuring objects is one way it can be used. The AR Ruler app has a name that is kind of self-explanatory. This app uses your camera to help you measure various objects. It will help you measure real life objects with your smartphone, basically, and that sounds neat, doesn’t it?

You’ll need to be at a certain distance for this app to do a good job, and at a certain angle. The best of all, this app can actually map objects in 3D, you’ll just need to follow the instructions to get the best results. And yes, it does include your regular digital ruler as well, in case you need to do some quick measuring of a smaller object, and not in 3D. Another thing to note is that the app requires an ARCore library (provided by Google) in order to work.

Download AR Ruler App by Grymala

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Best AR Ruler Android App For Measuring Rooms

ARPlan 3D

  • Price: Free to download
  • In-app purchases: Yes
  • Android version: 8.0+

ARPlan 3D app comes from the same developer as the previous AR app we’ve talked about. The main goal of this app is to help you measure rooms in your house. This app allows you to lay a virtual tape measure ruler on real-world surfaces. This will make measuring rooms much quicker, claims the developer. It can measure the room in general, and also windows and doors.

Do note that furniture will be in the way, though, of course, it cannot really see through it. So this is best-used when there’s no furniture in the room, before you’re about to buy furniture, or something of the sort. The app can also create a side view floor plan for you, as well as a 3D floor plan. It also allows you to share your created floor plans with whomever you want, directly from the app.

Download ARPlan 3D

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Best Android App With Various Measurement Tools

Smart Tools 2

  • Price: Free to download
  • In-app purchases: No
  • Android version: 6.0+

Smart Tools 2 is the only app on the list that is not free from the get-go. Most other apps do come with in-app purchases and ads, but you don’t have to buy them before you use them. That’s not the case with this app, but it’s well-worth the money. Smart Tools 2 is an app that combines various useful tools in a single place. One of those tools is a ruler, but there are various other tools included here, some of them do help out with measuring stuff.

There are 6 sets of tools included. You’ll find the following tools here: ruler, protractor, level, thread, compass, metal detector, GPS, sound meter, vibrometer, luxmeter, flashlight, magnifier, and mirror. The app will also help you measure distance, height, width, and area. That’s not all, though, the developer also included a unit converter tool, and a currency converter as well.

Download Smart Tools 2

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Best Laser Level Android App

Laser Level by EXA Tools

  • Price: Free to download
  • In-app purchases: Yes
  • Android version: 4.1+

Laser Level is another really useful app for measuring. It includes a laser pointer, a regular 3-mode spirit level / bubble level (libella), and a clinometer (inclinometer) for measuring vertical angles and determining the exact horizontal plane. If those tools fulfill your needs, this app actually works really well. The laser pointer is especially useful, and not something every app of this type has.

The laser pointer tool uses your phone’s sensors (gyroscope and accelerometer), camera, and AR in order to determine the vertical and horizontal levels around you. So, you can use it to measure your closet, bed, door height, and so on. You may need to do some calibrations before you start using the app, but that’s quite simple to do. The app is free to use, though it does come with ads, and includes in-app purchases.

Download Laser Level by EXA Tools

Best Android App For Measuring Your House

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HOVER

  • Price: Free to download
  • In-app purchases: No
  • Android version: 8.0+

HOVER is another interesting app for measuring, though this one is a bit different than the rest. This app aims to measure your house’s exterior, so that you know what you’re dealing with. Needless to say, measuring your house the old fashioned way would take quite a bit of time. This app can help you with that, as it will require around 8 photos to get the job done, depending on the size of your house, of course.

It can measure your entire house, the company claims. It can also render your house in 3D, if that’s something you need. Do note that you’ll need a clear view of your home, even though that’s a given. People are complaining in the comments, as they’re unable to get the measurements as a tree is in the way and so on. Well, if you do have a tree in the way that would prevent you to get far enough to get these measurements, and a clear view of the house (from all sides), then this app may not be for you. You can download it and try, though.

Download HOVER

Best Angle Measurement Android App

Angle Tool

  • Price: Free to download
  • In-app purchases: No
  • Android version: 4.4+

The Angle Tool app is kind of self-explanatory. This is a really simple application that does one thing (well, two, technically), and does it really well. It can measure the angle between two planes with use, though you can also use it as a triangle ruler. The video above will show you how it works, in real life, it’s really simple. If you need to quickly measure an angle of your wall, or something of the sort, you can do that with ease. All you have to do is fire up the app, and lean it against the wall, basically.

This application doesn’t have a fancy UI or anything of the sort, nor is it needed here. It is, however, completely free to use, and it doesn’t come with ads of any type. It also doesn’t include in-app purchases, which is always a good thing. So, you have full access to the app, and no interferences.

Download Angle Tool

Best Clinometer Android App

Clinometer

  • Price: Free to download
  • In-app purchases: No
  • Android version: 4.4+

Clinometer, for those of you who don’t know, is an instrument that measures vertical slopes. This app basically creates that tool out of your smartphone, and it allows you to adjust it up to 3 decimal places. A compass with light and magnetic field computation features is also included, as are various unit systems. You can also use your camera to measure via laser level, or a protractor.

This app will keep a history of your measurements, so you can always go back and re-check. You can also export your measurements as an .xls file, if you want, with ease. This is a really compelling app, and it has a high rating in the Play Store for a good reason. If you’re in need of a Clinometer, give this one a try, chances are you’ll like it.

Download Clinometer