The speed of the GNARBOX impressive as is the file management and editing features.

Once you pop in an SD card into the GNARBOX, the contents are displayed quickly with thumbnails generated so you can see the image or video contents.

It’s then easy to select the files you want and copy them directly to the built-in storage.

The file management system works incredibly well. You also have the choice of editing directly from the memory card or copying quickly over to the GNARBOX itself.


The file management enables you to select the images you want and then copy those over the device by placing them into folders that you can create along the way.

Tested with image files taken on both Olympus and Canon systems showed that the thumbnails for both JPEG and RAW files are generated and once selected you’re also able to apply edits to both file types.

Testing with the Panasonic GH5S and the RAW files show as just icons at the moment, but then the same is true for Adobe Bridge as the system is so new.

A very intuitive tap to select workflow is adopted and not too dissimilar than the approach you would take when manually sorting files on a computer.

Although the manual approach is good, I would have liked to have seen an auto-download feature that would enable you to insert the card and then automatically download the files to the storage device with an automatic file structure. Such as year/month/date.

Whether you decide to edit directly from the memory card or once downloaded the process for enhancing the images or video is the same.

In the preview screen, you click ‘Edit’, which takes you through to the edit section of the app. Below the preview of the image or video, there are a series of edits that you can make. These include Exposure, Contrast, Highlights, Shadows along with many more.


For both video and stills, there are a good amount of adjustments that you can make, and if you need the addition editing power, then you can swap over to either Lightroom or iMovie.

The editing features are straightforward to use, but one thing that I found was that you could only edit individual images or video. There was no way to batch edit, and once you adjusted one picture, there was no way to save down those adjustments so they could then be applied to other images later on.

Although this is slightly annoying, you can switch over to Lightroom mobile that does have this feature.

So if you have 100 images that you know all need a similar adjustment it’s a case going into each, editing and then exporting. Mindue the process in Lightroom mobile only enables you to paste the edits to one image at a time.

The same is the case with video. When you graded the footage within the app, you then have to go to the next clip and carry out the same adjustments before exporting.

Although on the one hand the editing features are advanced enabling the improvement of tone, colour, and contrast and with editing features such as crop it would be good to see some more advanced aspects such as batch edit.

But then the GNARBOX gives you far more than anything that has been before when it comes to image enhancement on a mobile device. For those batch editing features Lightroom and iMove do go someway to facilitating but there is still much room for improvement if mobile image enhancement is to match that of a computer.

Once you work out the workflow which is the honest doesn’t take too long you realise just how powerful innovative the GNARBOX is.

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