# iDStretch

> Rock art enhancement program for field use on iOS devices. (iPhone/iPad app by Jon Harman.)

- Source: https://appshunter.io/ios/app/idstretch/id1072158444 (this page in markdown: same URL + `.md`)
- Developer: [Jon Harman](https://appshunter.io/developer/1072158443)
- Category: Photo & Video
- Price: $19.99
- Rating: 4.30/5 from 13 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 6 MB
- Languages: American English
- Released: 2016-01-12
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/idstretch/id1072158444/reviews.md

## What is iDStretch?

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.

## Key features

- Rock art enhancement
- Field use capability
- Offline functionality
- Supports various pigments
- Load images or use camera
- Save enhancements

## Chart rankings

- #130 in Top Paid · Photo & Video (US App Store)

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/idstretch/id1072158444/reviews.md

### 5/5 — Great app

*2021-09-28*

I used the program on my pc and figured it would be easy to have on my phone too!

### 1/5 — Not impressed possible scam

*2019-11-29*

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.

### 1/5 — App fails on 4s running latest 9.3.5 os

*2018-06-10*

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.

### 5/5 — Love it!

*2017-04-30*

Really interesting to look back at old pics of rock art with!

### 5/5 — Great app! Works very well!

*2016-04-06*

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!

### 5/5 — An outstanding and essential research tool

*2016-01-23*

First and foremost, this is the most elegant and field-practical digital enhancement app available for pictograph analysis on the iPhone or iPad. It was created by the original developer of DStretch, the tool which revolutionized rock art analysis, and this newly released version for mobile platforms has benefited from years of refinement on the original program. It is a "must have" for anyone serious about being able to transcend the limitations of their eyes when studying ancient art or anything else that might possess faint hues.

I have field tested the iDStretch app extensively on an iPhone 6s. The application handles the limitations of my cell phone's tiny noise-prone image sensor very well. Direct sunlight provides optimal enhancements, as should be expected, but I've even achieved satisfactory results at dusk using my cell phone's flash. The app handles enhancements from mixtures of direct sunlight and hard shade surprisingly well, a big plus because field work situations are not always conducive to quality photography.

Especially helpful are the easy to use options in "Settings". You can limit the number of enhancement filters the app cycles through to hone in on what works best on a given rock or art type. This really speeds up recording tasks and camera set-ups if you are using the program to augment your DSLR photography. 

The iDStretch app is easy to use, easy to customize, and works great in the field or when simply sitting at home studying your iPhoto rock art collection. It is the perfect companion tool for photographing pictograph panels using higher quality equipment, especially when the recording efforts or desired aesthetics are compromised by poor paint conditions. Easily 5-stars.

### 5/5 — Nice to have an app version

*2016-01-15*

I have been using your desktop version for a while with really good results.  Thanks for making a mobile version. I can't wait to get this into the field.  Tested it on some hi res pictograph photos I had and it worked great.

## Frequently asked questions about iDStretch

### What is iDStretch used for?

iDStretch is a specialized photo enhancement program designed to reveal faint rock art. It's used by researchers worldwide for analyzing rock art in the field.

### Does iDStretch require an internet connection?

No, iDStretch does not require any connectivity to work. This allows for enhancements to be done in remote places away from cell service or WiFi.

### How do I apply enhancements in iDStretch?

You can apply enhancements by pressing buttons on the screen or by swiping left or right on an unzoomed image. You can also access enhancements through the '*Enh*' menu item.

### What devices does iDStretch support?

iDStretch is available for iPhone and iPad devices. It is compatible with iOS versions supporting the latest updates.

### How much does iDStretch cost?

iDStretch is a paid application, priced at $19.99. This one-time purchase grants access to all its features.

### How often is iDStretch updated?

The latest version, 2.2, was released on October 1, 2020. While updates have not been frequent recently, the app is stable for its intended purpose.

### What is the age rating for iDStretch?

iDStretch has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

### Can I save the enhanced images from iDStretch?

Yes, enhancements made with iDStretch can be saved. This allows users to preserve their findings for further study or documentation.

## Version history (last 5 releases)

### 2.2 — 2020-10-01

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.

### 2.1 — 2017-11-07

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.

### 2.0 — 2017-10-27

Support for iPhone X

### 1.8 — 2017-09-11

Tweaked the YBK enhancement for better results.

### 1.7 — 2016-10-24

Added a menu way (*Enh*) for specifying enhancements when in "swipe" mode, i.e. when the buttons are not shown.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*