Comparison

Ruler AR vs Document Scanner PDF Editor

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

Head to head
About

Ruler AR

Measure real-world objects accurately using augmented reality. This app allows for length, width, and height measurements, even on non-flat surfaces. Save and review your measurements for future reference.

Highlights
  • Augmented reality measurements
  • Length, width, and height measurement
  • Measure on non-flat surfaces
  • Physical ruler feature
  • Multiple unit support
  • Save and archive measurements
Features
Read full description

Ruler AR - Tape Measure App is an AR measurement app that allows you to measure any object in the real world using augmented reality (AR) technology. With its Ruler AR, you can accurately use the length measure, width measure, height measure,… of any object, even if it is not flat or straight. Imagine you're decorating your house and need to know the exact size of a wall. Or, you're building a piece of furniture and need to make sure all the parts fit together perfectly. Or, you're a contractor and need to submit accurate measurements to a client. Or maybe you just want to measure the things you want right away without a ruler or tape measure nearby. Ruler AR - Tape Measure App, on-screen ruler can help you with all of these tasks and more. Feature of Ruler AR - Tape Measure App Tape measure everything Ruler AR - Tape Measure App can be used to measure on multiple different surfaces. Simply point your device's camera at a textured surface (horizontal or vertical) and AR Ruler will do the rest. With Ruler AR - Tape Measure App, you can measure the distance between your device's camera and a fixed point on a 3D surface. This measure app allows you to estimate the height of any object or structure in your view with the 3D height measurement scanner. You can also measure the corners of 3D planes and the size of a 3D object with the volume scanner feature. Physical Ruler AR Ruler provides a standard ruler feature (Ruler). You can use this feature by placing the object to be measured vertically on the device and selecting the unit of measurement. Various measurements in units Ruler AR - Tape Measure App supports a variety of units, including inches, millimeters, centimeters, meters, yards, and feet. You can quickly choose units of measurement without having to use multiple measure tools. Take Photos Camera measurement allows you to take photos of your measurements. The results can be downloaded and saved for you to review later. Measurement archive If you want to search and review all the objects you have measured and compare them to each other, you need to store them. AR Ruler allows you to save your measurements for future reference. How to use Ruler AR - Tape Measure App Open Ruler AR - Tape Measure App and select AR ruler. Aim the camera at the surface where the object to be measured is placed. You can move the camera to detect the plane. Start measuring on the object. The measurement results will be displayed on the screen. Capture to save the results. Ruler AR - Tape Measure App is a free digital tape measure. With AR Ruler, the measure tool helps you to measure distance, height, length, width, angle and more by simply scanning your device. You can use this measure app in any indoor or outdoor environment, including rooms, fields, and construction sites.With just a phone and AR Ruler, you can measure everything around you. Note: Please note that the AR Ruler app requires the ARCore library (also known as lidar iOS) developed by Google. ARCore (lidar iOS) is constantly being improved, which has a positive impact on the quality of room scanning and the accuracy of image measurements in the AR Ruler augmented reality app. Ruler AR - Tape Measure App quickly, easily, and accurately. So what are you waiting for? Download Ruler AR - Tape Measure App today and start measuring like a pro! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Document Scanner PDF Editor

Features
Read full description

Introducing our comprehensive Document Scanner app, designed to revolutionize the way you manage and manipulate your documents. With an array of powerful features, this app is your go-to solution for all your document scanning and editing needs. Scan with ease: Say goodbye to bulky scanners and complicated setups. Our app allows you to effortlessly capture documents of all types – from receipts and contracts to ID cards and passports – directly from your smartphone camera. With intuitive controls and real-time document edge detection, you can ensure that every scan is crisp, clear, and perfectly aligned. Edit like a pro: Once you've scanned your documents, our app offers a plethora of editing tools to enhance and customize them to your liking. Convert documents to black and white for optimal readability, reorder pages effortlessly, and add your signature directly within the app for a personal touch. Need to crop, rotate, or resize your document? No problem – our app makes it simple. ID scanner made easy: Whether you're at the airport, bank, or office, our ID scanner feature lets you quickly capture and store important identification cards, including passports, driver's licenses, and more. Simply point, shoot, and let our app do the rest – ensuring that all your important documents are safely stored and readily accessible whenever you need them. QR and OCR capabilities: With our built-in QR scanner and OCR (Optical Character Recognition) technology, extracting information from barcodes and text has never been easier. Whether you're scanning a product barcode or digitizing printed text, our app can quickly and accurately convert it into digital format, saving you time and effort. PDF editing at your fingertips: Our app offers a wide range of PDF editing tools to help you take control of your documents. Merge multiple documents into a single PDF, convert PDFs to images, add text and images to existing PDFs, and even add watermarks or annotations for added security and professionalism. With these tools, you can customize your documents exactly how you want them. Streamlined workflow: Whether you're a busy professional, student, or entrepreneur, our Document Scanner app is designed to streamline your document management workflow. With its intuitive interface, powerful features, and seamless integration with other apps and services, it's the ultimate tool for keeping your documents organized, accessible, and secure. Download now and experience the future of document scanning and editing – right at your fingertips.

Screenshots

Ruler AR4 screens
Document Scanner PDF Editor4 screens

Verdict

The call

The clearest difference is in-app purchases: Document Scanner PDF Editor at none against Ruler AR's 3. Document Scanner PDF Editor also leads on ads (none vs shown). On price, update cadence, 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 AR sells 3 in-app purchases, starting at $3.99 per month. Document Scanner PDF Editor asks for nothing beyond the download.

UpkeepUpdate frequency

Ruler AR ships an update every 5 days, Document Scanner PDF Editor every 3 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 8 level
Ruler AR versus Document Scanner PDF Editor: the parameters behind the verdict, then further details
ParameterRuler ARDocument Scanner PDF Editor
PriceFreeFree
Rating4.3 (4 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 5 daysEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size75 MB40 MB
Age rating4+17+
DeveloperNhu Ngoc LeJyotsnaben Varsani

In-app purchases

3 purchases

Ruler AR

Subscriptions2
  • AR Ruler Premium Monthly$3.991 Month
  • AR Ruler Premium Yearly3 Days trial$19.991 Year
One-time1
  • AR Ruler Premium Lifetime$29.99
None

Document Scanner PDF Editor

No in-app purchases

Questions

Is Ruler AR free?
Ruler AR is free to download, with in-app purchases available.
Is Document Scanner PDF Editor free?
Document Scanner PDF Editor is free to download, with no in-app purchases.
Do Ruler AR or Document Scanner PDF Editor have ads?
Ruler AR shows ads; Document Scanner PDF Editor does not.
Which is updated more often, Ruler AR or Document Scanner PDF Editor?
Ruler AR ships an update every 5 days, and Document Scanner PDF Editor every 3 days. Most recently, Ruler AR was updated on October 24, 2026 and Document Scanner PDF Editor on October 27, 2026.

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