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 2.2

Improved messages about swipe vs button mode.
Functionality is the same. No need to update if your app is working.
Warning: may not work on iPad 2.

Ratings and Reviews

3.7 out of 5
7 Ratings

7 Ratings

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!

Aaron41175 ,

Not impressed possible scam

Tried many different megalithic types, locations, and even attempted to recreate the cover photo. After all it claims to use digital pics so I used the sample “before” pic and couldn’t get any results resembling the before after example at all. I think I had better results with my iphone’s photo edit option. I resent the $20 I dropped here.

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.

App Privacy

The developer, Jon Harman, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer's privacy policy.

No Details Provided

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


Jon Harman
6.3 MB

Requires iOS 8.0 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.

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