# Photo Extension Histogram — ** ESSENTIAL PHOTO UTILITY **

> Photo utility for analyzing photo histograms and improving photography skills. (iPhone/iPad app by Digiguys, Inc.)

- Source: https://appshunter.io/ios/app/photo-extension-histogram/id1084416191 (this page in markdown: same URL + `.md`)
- Developer: [Digiguys, Inc](https://appshunter.io/developer/888846748)
- Category: Photo & Video, Utilities
- Price: $1.99
- Rating: 3.90/5 from 19 App Store ratings · 20 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 77 MB
- Languages: American English
- Released: 2016-03-08
- Data updated: 2026-08-31
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/photo-extension-histogram/id1084416191/reviews.md

## What is Photo Extension Histogram?

** ESSENTIAL PHOTO UTILITY **

Photo Extension Histogram provides Tonality, RGB Channels, and Luminosity histograms for photos stored in the Apple Photos app for iPhone and iPad. This extension is great for photographers who need to analyze the tonal and color distribution of photos to identify underexposure, overexposure, and appropriate levels of contrast. The extension also explains, advises, and guides you on how to understand each histogram to be a great photographer! 

To use this extension, open the Apple Photos app, select any photo, tap the Action button, and then select the Photo Extension. You can also use the extension when editing photos.

Photo Extension Histogram:
+ Quick and easy to use.
+ Supported in most photo apps Action button.
+ Works on the iPhone and iPad.
+ Available from Action Extension or Edit Extension.
+ Shows Tonality Histogram.
+ Shows RGB Channel Histogram.
+ Shows Luminosity Histogram.
+ Provides advice about dark, light, and mid-tones.
+ Provides advice about high and low contrast.
+ Explains each histogram in plain English for everyone to understand.
+ Save photo with the histogram in the Photo Library.

MORE APPS:
Check out all our apps at https://digiguys.com

SUPPORT:
We are here to help https://www.digiguys.com/help

FACEBOOK PAGE:
Join our Facebook Page for tips, ideas, support, and much more... be part of the community!  
https://www.facebook.com/digiguysapps

## Key features

- Tonality Histogram
- RGB Channel Histogram
- Luminosity Histogram
- Exposure and Contrast Advice
- Photo App Integration
- Save Histogram with Photo

## Recent user reviews (10 of 20)

All indexed reviews: https://appshunter.io/ios/app/photo-extension-histogram/id1084416191/reviews.md

### 4/5 — not bad

*2026-04-05*

helps get started but rough interface

### 1/5 — Not good

*2026-01-25*

No

### 1/5 — Scam

*2025-10-27*

Doesn't work at all

### 5/5 — I like exstending

*2025-02-14*

Exstending is cool nice and easy

### 2/5 — Cheap but poor

*2024-10-05*

I too expected a typical histogram with adjustments. This app simply shows histograms for an image - and is not an integrated plugin in the usual sense. It’s a shame because PHOTOS really needs a decent histograms function for pro photographers using iPad OS…

### 5/5 — Rating

*2023-05-23*

I was expecting an adjustable histogram tool. Not really happy with the purchase.

### 3/5 — Quite handy

*2022-08-05*

I’ve wanted to have a histogram in Photos on the iPad for some time, and wasn’t aware it was possible until I spotted this extension app.

It is a little clunky, but is reasonably useful. I find it sometimes shows no data on the first run, but if you repeat the operation it works fine. I like the amount of detail it shows, and the different histogram types that are available for analysing the images.

It’s a shame there’s no way to show a live histogram, but I suspect that’s a limitation of the OS, so can really blame the app for that.

One other little quirk I found, is with this app, you need to click ‘Cancel’ when you’re finished, if you click on ‘Done’, you start filling up your library with small thumbnail/preview images (can’t think of why you’d want that).

I did buy this as part of a bundle, but this is the most useful, and not bad value for what it does.

### 1/5 — Used to be easy to use…

*2021-10-01*

Not easy anymore.  Someone “improved” this app too much!

### 5/5 — PRO photographer must have

*2021-03-14*

PRO photographer must have

### 5/5 — I have them all

*2021-03-14*

I have all the utilities nice as work with Apple Photos app

## Frequently asked questions about Photo Extension Histogram

### What is Photo Extension Histogram?

Photo Extension Histogram is a utility app that provides detailed histograms (Tonality, RGB Channels, and Luminosity) for photos stored in the Apple Photos app. It helps users analyze tonal and color distribution to improve their photography.

### How do I use Photo Extension Histogram?

To use Photo Extension Histogram, open the Apple Photos app, select a photo, tap the Action button, and then choose the Photo Extension. It can also be accessed while editing photos.

### What devices does Photo Extension Histogram support?

Photo Extension Histogram is supported on iPhone and iPad devices.

### What is the price of Photo Extension Histogram?

Photo Extension Histogram is a paid app, priced at $1.99.

### Does Photo Extension Histogram have ads?

No, Photo Extension Histogram does not contain advertisements.

### How often is Photo Extension Histogram updated?

The latest version, 2.4, was released on February 15, 2021. The app was originally released on March 8, 2016.

### What is the age rating for Photo Extension Histogram?

Photo Extension Histogram has an age rating of 4+.

### Can I save the histogram with my photo using this app?

Yes, Photo Extension Histogram allows you to save the photo with its histogram displayed in your Photo Library.

## Version history (last 5 releases)

### 2.4 — 2021-02-15

We're making Photo Extensions the best extensions for photographers using the Apple Photos app!

+ Updated usage guide for new Apple Photos extensions
+ Complete app rewrite for iOS 14
+ Performance Improvements

### 2.3 — 2021-02-06

We're making Photo Extensions the best extensions for photographers using the Apple Photos app!

+ Updated usage guide for new Apple Photos extensions
+ Complete app rewrite for iOS 14
+ Performance Improvements

### 2.2 — 2019-02-13

We're making Photo Extensions the best extensions for photographers using the Apple Photos app!

+ Improved the iPad user experience

### 2.1 — 2019-02-02

We're making Photo Extensions the best extensions for photographers using the Apple Photos app!

+ Improved the iPad user experience

### 2.0 — 2019-01-03

Thank you for your feedback! We're making the Photo Extension Histogram the best extension for Apple Photos.

+ Added onboarding guide to enable the extension in the Apple Photos app
+ Updated for iPhone X/XS
+ Updated for the iPad Pro

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## More apps by Digiguys, Inc

- [Photo Extension Info](https://appshunter.io/ios/app/photo-extension-info/id976184883)
- [Photo Extension EXIF](https://appshunter.io/ios/app/photo-extension-exif/id991875046)
- [Focus On Five](https://appshunter.io/ios/app/focus-on-five/id1027024136)
- [ZendLove](https://appshunter.io/ios/app/zendlove/id1051803678)
- [Photo Extension Resize](https://appshunter.io/ios/app/photo-extension-resize/id1055256367)
- [Photo Extension Watermark](https://appshunter.io/ios/app/photo-extension-watermark/id1060111926)

All apps by Digiguys, Inc: https://appshunter.io/developer/888846748

## Related topics

[photo extension histogram](https://appshunter.io/ios/topics/photo-extension-histogram) · [extensions photo](https://appshunter.io/ios/topics/extensions-photo) · [histogram](https://appshunter.io/ios/topics/histogram) · [histogram app](https://appshunter.io/ios/topics/histogram-app) · [extension photo](https://appshunter.io/ios/topics/extension-photo)

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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 2026-08-31.*