This is a simple tool to survey distance on foot. The distance is calculated by using GNSS (Global Navigation Satellite System). A survey result (tracking data) can be checked with an iOS map and is recyclable by file sharing.

About settings:
Remove Ads - It removes ads to use in-app purchase, and shows a toolbar.
Units - meter, international foot, or U.S. survey foot.
Distance calculation methods - iOS Default, Haversine, Hubeny (Simple Formula), Bowring, or Hubeny (Original). Bowring's method is the best accuracy.
Reference Ellipsoid - WGS84 or GRS80.
Strict Mode - It checks a vertical error.
Automatic Shut Off - If you do not move for about 5 minutes, surveying will be stopped automatically.
Do Not Use Thumbnail - It does not display thumbnails.
Use Light Mode for Maps - The map is displayed in light mode even if you are using dark mode.

Continued use of GNSS running in the background can dramatically decrease battery life.

What’s New

Version 2.5.3

- Optimized image files.

Ratings and Reviews

2.4 out of 5
5 Ratings

5 Ratings

MaXXedOutCuber ,

Needs alot of work

I was trying to figure out how far I was triple jumping earlier today... I noticed the measurements of jumps very close together were ranging from 32-40 ft. This made me wonder how inaccurate this app was.

I went home and walked 12 paces. I got a range of 7.6ft to 13ft. This app needs alot of work before I'd use it to calculate any distances....

Back to the old fashion ruler😄

Ohsemix ,

Perfect for long distances

I used it to measure a property that was about 467 feet long in the app and with a rough measurement using a tape measure. I was able to calculate the app was only off by 5-10 feet off which isn’t much in terms of long distances,

KennyBallgame9 ,

Worked better than I expected

I’m doing wind sprints on a desert trail and wanted to measure the distance I am sprinting each time. I used the app to measure in meters and it ranged between 121.5 and 122.2 meters. Seems to be consistent and accurate.

For shorter distances it varies wildly.

App Privacy

The developer, Takafumi AMANO, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You Might Also Like