iPhone Screenshots


In addition to showing available location information, trueHorizon uses your current altitude to calculate the distance to the true horizon - the point where the sky intersects the earth. The calculated value represents the distance you would travel in a straight line to reach that intersection. Your perception of the horizon, known as the visible horizon, may be significantly closer than the value calculated because of obstructions such as buildings, trees, or mountains.

If you are perched in a lookout tower, on a mountainside, or on the beach and you find yourself looking out over a beautiful landscape and wonder how far you can see before the earth slips over the horizon. trueHorizon can give you a quick estimate of the furthest possible distance to the horizon.

* This app is not intended to be used as a primary tool for navigation purposes.

What’s New

Version 1.3.1

Adds "Calculate" button to process altitude/horizon values without dismissing the keyboard or tapping in the alternate field.

Ratings and Reviews

5.0 out of 5
2 Ratings

2 Ratings

Mmbeiruti ,


Thank you very much for your response, will you now make the distance and altitude in km and meters beside miles and feet as well.Really will appreciate this work, this will make this App deserves 5 Stars.
Continue you success.

Since my previous review, no action was done regarding conversion between KM & Meter beside Miles, hopefully you will make it in your forthcoming update.

Still need to add conversion between Miles, Kilometers and Meters.
Thanks to your response.

No action was taken since my repeated reviews?!
Will take action?

Than you for your reply
Now every thing work

Developer Response ,

If you want to display the data in Kilometers and Meters INSTEAD of Feet and Miles: Launch the iOS Settings app, scroll down to find the entry for trueHorizon, under "Distance" select the Unit you prefer.

App Privacy

The developer, Derrick Stocker, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


Derrick Stocker
16.6 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

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

More By This Developer

You May Also Like