DStretch is a rock art enhancement program used by researchers worldwide. iDStretch is a version for the iPad and iPhone that can be used in the field to reveal faint rock art. iDStretch provides enhancements for a variety of pigments found in rock art. It is fast, simple to use, and enhancements can be saved. iDStretch needs no connectivity to work so enhancements can be done in remote places away from cell service or WiFi.
You can load an image from the album or take a picture with the camera.
To do an enhancement you can either press one of the buttons on the screen or swipe left or right on an unzoomed image. If you want you can hide the buttons and use swipes or the *Enh* menu item to do enhancements.

What’s New

Version 2.1

Fixed enhancement save bug in newer devices.
Warning: I have had a report that the app doesn't work on an iPad 2. If true I can't fix that, sorry.

Ratings and Reviews

4.2 out of 5
6 Ratings
6 Ratings
F.A. World traveler ,

App fails on 4s running latest 9.3.5 os

The camera and album will not work making application useless. Album claims to turn on permissions, but settings privacy shows no request from the app for camera nor photos.

Todavia ,

Great app! Works very well!

I have to say this app does the job well! It is easy to use in both iphone and Ipad platforms. While working on a project a bunch off us loaded it and I must say every one of us were happy! This app is money well spent!

jlitzkow ,


I now use this software every time I am survey places where faded rock art is known (or suspected) to occur. I have recorded previously unknown glyphs with this software. A must-have for the serious field archaeologist!


Jon Harman
6.2 MB
Photo & Video

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2017 Jon Harman


  • Family Sharing

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

You May Also Like