Phone

aDStretch

Photography • Jon Harman • ⭐ 4.30 • 1,000+

Version 1.33 Everyone

Screenshots

Permissions Explained 4 permissions requested View details

This app requests 4 permissions. The table below explains what each permission may allow and what users should review before installing.

Status	Permission	What it means	Why it may be used	User safety note
ℹ️ Review	Read The Contents Of Your Usb Storage read the contents of your USB storage	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Modify Or Delete The Contents Of Your Usb Storage modify or delete the contents of your USB storage	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Take Pictures And Videos take pictures and videos	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Google Play License Check Google Play license check	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.

About aDStretch

DStretch is a program for the PC and Mac that is used by rock art researchers to make faint rock art visible. This is a version for Android intended to be used in the field at a rock art site. Eight enhancements are provided together with settings that can adjust strength and saturation of the enhancements. Enhancements can be applied to a photo from the camera or from the gallery. The enhancements can be saved. For ease of use you can designate a default enhancement (I recommend CRGB) that is automatically applied when an image is loaded. The enhancements are: CRGB, YRD, YRE, RGB0: good for red pigments. YDT, YRD, YWE: general purpose. YDT, YBK, YYE: good for yellows. See DStretch.com for more information on DStretch and the enhancements. In addition to choosing the default enhancement, you can use the menu to set: Scale. This is the strength of the enhancement. Saturation. This controls the saturation of the enhancement. Set to 0 for grayscale, 1.0 for normal. MPixel Limit. Android phones can have memory problems with large images. Set this to a low value to avoid crashes, to a high value to get higher resolution for enhancements. Output Directory. This is where the saved enhancements will be put. Toggle Diagnostics. Turn on to get diagnostic information.

What aDStretch Is Used For

aDStretch appears to be a field-oriented photography tool for rock art researchers and other users working with faint surface imagery. Based on the metadata, it is used to enhance photos so subtle markings in rock art may become easier to see, especially when working directly at a site with an Android phone.

The app can apply several enhancement modes to images taken with the camera or loaded from the gallery, and it lets users adjust strength and saturation to change how the result looks. The storage permissions suggest it may save edited outputs to a chosen directory and read image files from device or USB storage. The camera permission indicates it can capture new photos for immediate enhancement, while the large-image memory setting appears useful when handling higher-resolution field images on phones.

Common uses

Enhancing photographs of rock art in the field
Adjusting image strength and saturation for different results
Loading photos from the camera or gallery for processing
Saving enhanced images to a chosen output folder
Using a default enhancement for faster repeated work
Managing larger images with a memory limit setting
Capturing new photos before applying enhancement

Best for:

Rock art research Field photography Phone app Image enhancement Photo analysis

Related tags

App Details

Package:
com.dstretch.androiddstretch

Category:
Photography

Developer:
Jon Harman

Version:
1.33

Updated:
Jul 6, 2025

Min Android:
5.0

Age Rating:
Everyone

Contains Ads:
No

In-App Purchases:
No

Official Listing

Official listing available on Google Play
Package name: com.dstretch.androiddstretch
Age rating: Everyone

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How to Download aDStretch

If this app is not hosted directly on APKApps official link, then for the safest and most up-to-date version, install it from its official Google Play listing.