# Simply HDR vs DuoImage Viewer

The clearest difference is chart position: Simply HDR at #123 against DuoImage Viewer's unranked. Simply HDR also leads on iOS requirement (14.0 vs 18.6). DuoImage Viewer's advantage is price ($1.99 vs $2.99). On update cadence, ads, in-app purchases and device support there is nothing between them.

Simply HDR costs $2.99 and DuoImage Viewer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simply HDR ships an update every 2 months, DuoImage Viewer every 5 weeks. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Simply HDR | DuoImage Viewer |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | **[4.8 (1.5K ratings)](https://appshunter.io/ios/app/simply-hdr/id438948516/reviews)** | — |
| Number of ratings | **1.5K** | — |
| Positive reviews | 81.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Paid | — |
| Best chart rank | **#123** | — |
| Size | 51 MB | 2 MB |
| Requires iOS | **14.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JixiPix, LLC](https://appshunter.io/developer/380605671) | [余 杨](https://appshunter.io/developer/6784909940) |

## What reviewers say

### Simply HDR

[App page](https://appshunter.io/ios/app/simply-hdr/id438948516)

**Currently charting:** #123 Top Paid · Photo & Video (US App Store)

Transform ordinary photos into vibrant HDR images with exceptional light and detail. This app offers a powerful HDR engine, presets, and adjustable controls to create stunning, artistic, or realistic HDR effects easily.

**Highlights:** Powerful HDR engine, Adjustable controls for HDR, color, vignette, and grain, HDR presets for one-click results, Save custom presets for consistent workflow, Six HDR styles (Realistic, B&W, Contrasted, etc.), Library of artistic color gradients

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🎨 Great photo effects
- 💫 Produces stunning results
- 🔥 Addictive app
- 🌟 Excellent HDR app

**What reviewers complain about**

- 🐛 Crashes/doesn't work
- 🚫 Not true HDR
- 📉 Poor image quality
- 🔍 Limited features
- 🔧 Needs more customization

**Reported bugs**

- Crashes on iOS 15 update
- Buttons/controls not working properly
- Compatibility issues with newer devices
- Slow save times
- Screen controls get corrupted

**Requested features**

- Ability to merge multiple exposures
- More filters and editing options
- Improved performance and stability
- Rotate image before saving
- Higher export resolution


### DuoImage Viewer

[App page](https://appshunter.io/ios/app/duoimage-viewer/id6788791560)

**In-app purchases:** none


## Frequently asked questions

### Is Simply HDR free?

Simply HDR costs $2.99, with no in-app purchases.

### Is DuoImage Viewer free?

DuoImage Viewer costs $1.99, with no in-app purchases.

### Do Simply HDR or DuoImage Viewer have ads?

Neither Simply HDR nor DuoImage Viewer shows ads.

### Which is updated more often, Simply HDR or DuoImage Viewer?

Simply HDR ships an update every 2 months, and DuoImage Viewer every 5 weeks. Most recently, Simply HDR was updated on October 29, 2026 and DuoImage Viewer on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*