Flying Ruler: 3D Tape Measure Apple

Flying Ruler: 3D Tape Measure

Distance Meter, Rangefinder

Features & Capabilities

The Flying Ruler app allows you to measure in the most original way: by just moving your device from one point to another.

Flying Ruler is a ruler, tape measure, rangefinder, protractor and a 3D angle finder. It is five devices in one app, providing you with the quickest way to measure a distance or an angle.

The secret of the program is that it is based on the principles of the inertial navigational system (INS): the position of the device is determined with the help of the accelerometer and the gyroscope.

Measurements take place extremely quickly and at the same time they are quite accurate. We are constantly improving our computational algorithm for more than 11 years!

To try this technology for free you can install the app "Digital Angle Finder: 3D Meter". This free app measures the angle as you move the device.

AWARDS:

Editor's Choice — 148Apps www.148apps.com/reviews/flying-ruler-review

PRESS ABOUT US:

"I was impressed with Flying Ruler’s accuracy. It works quickly and effectively", "It’s the perfect addition to anyone’s app collection" — 148apps 4.5 / 5 (MUST HAVE)

"This thing is awesome" — brettterpstra.com

"I literally said “wow!” when I first used this app and I think it’s a truly impressive marvel of mobile technology", "The Flying Ruler Rules" — AppPicker (Cons: there is nothing negative to say about this app)

*** Measure distance with good precision, no matter the lighting or conditions ***

The app has different modes so you can choose which mode is better and easier to use on each occasion. You can measure with the body of the device in one mode or with a virtual tape measure in another. You can not only measure an object but also the distance between two walls (rangefinder mode). You use the same methods to measure angles as the app allows you to measure angles both on a surface area (protractor mode) and between surfaces through space (3D angle finder mode).

You can choose either inches or centimeters. The maximum distance is only limited by the value of the indicator which consists of 999 ft for the imperial system and 99 m for the metric system.

When measuring, you can avoid obstacles and therefore you can measure anything.

Flying Ruler is suitable for measuring not only large, but also very small distances with the accuracy of a standard ruler.

The app also allows you to save a measurement by taking a photograph of the measurement and mark the place that was measured.

Don’t forget to show your friends and colleagues how the app works – believe us, they will be impressed.

ACCURACY OF MEASUREMENT:

We took 100 consecutive measurements and got these results:

On iPhone 13:

• Mean squared error - 0.14% • Maximum inaccuracy - 0.4%

On iPhone 7:

• Mean squared error - 0.15% • Maximum inaccuracy - 0.4%

On iPhone 6s:

• Mean squared error - 0.28% • Maximum inaccuracy - 1.1%

The accuracy of measurements depends on the device, however the error rarely exceeds 1.5%. You can always increase accuracy by making a series of measurements. If you make a series of measurements, the degree of error is usually 0.3% or less.

Angles can be measured with the app to an accuracy of one degree so the app can easily take the place of a protractor or a angle finder.

WEBSITE:

www.flying-ruler.com

User Growth & Download Statistics

App
By:
ALEXEY BRILEV
Rating:
4.10
(186)
15 new ratings
Version:
6.3.3 Last updated: 2026-03-06
Version code:
883071918
Creation date:
2013-08-23
Compatible devices:
Size:
78.06MB
Price:
1.99
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-13
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
ALEXEY BRILEV
Apple Apps Store
https://apps.apple.com/us/app/flying-ruler-3d-tape-measure/id667579844
Website:
https://www.flying-ruler.com/

User Reviews

Reviewers commonly praise Flying Ruler for accuracy after calibration, ease of use, portability, and feature-rich design with built-in tutorials, and many consider it good value. However, several users report inconsistent or inaccurate results, note calibration can be confusing or ineffective at times, and there are mixed feelings about whether it’s worth the price. Overall, it’s valued by many, but reliability can vary by use case and device.
Pros
  • Generally accurate and precise after calibration.
  • Easy to use / intuitive.
  • Portable and handy to use without a ruler, leveraging the phone's sensors.
  • Well-designed with helpful built-in tutorials and feature-rich options.
  • Good value for money for many users.
Cons
  • Measurements can be inconsistent or inaccurate across attempts.
  • Calibration/setup can be confusing and may not reliably fix accuracy.
  • Value for money is mixed: some users find it worth the price, others feel it isn’t worth it.
Recent reviews
Took a few tries to figure out calibration etc. Once I did that it was surprisingly spot on the mark. Quite impressive!
by Mi*****, 2026-02-06

It is very well made
by Su*****, 2020-10-17

Measurements are way off for me. I calibrated twice and still seems not right.
by Si*****, 2019-01-12
View all user reviews ›

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