Designed from the ground up as a fast, efficient and feature rich media viewer. ApolloOne uses advanced Operating System features such as multi-threading, Grand Central Dispatch, and Core Image graphics to ensure app responsiveness.


1. Rapid viewing and culling of all photos/videos in the folder and subfolders by simply double clicking on a single photo anywhere on the system (if you have added Macintosh HD volume to Places).

2. Ultra-fast camera RAW preview engine.

3. Rotate, mirror, flip photos and video instantly.

4. Fluid Swipe photo viewing mode with Trackpad and Magic Mouse support (just like you would view photos on the iPhone or iPad).

5. Supercharged EXIF inspector with comprehensive information. You can change font size or perform quick search on the information on this screen.

6. Powerful slideshow function with 12 GPU-accelerated transition effects and many user configurable options. Slideshow runs on full screen or in a window(1).

7. Locate actual address by using GPS coordinates embedded in JPEG, RAW or video files. You can update (or add) GPS coordinates by simply dragging the pin to another location on the map.

8. Display camera AF points and detected faces and magnify them for checking focus and cycle through them quickly (on supported cameras).

9. Tag and rate files for copy / move / trash operation. You can tag or rate files quickly using keyboard shortcut keys. File rating uses IPTC/XMP compatible Rating field.

10. File filtering and sorting with 2-level sort key.

11. Sharing with Facebook, Twitter, Sina Weibo, etc. and AirDrop.

12. User customizable Toolbar.

13. Context menu for frequently accessed functions and the ability to send the photo or camera RAW file to an external editor.

14. Spotlight indexing of photos, with address location and user selectable EXIF info for indexing. Photos can be searched quickly via Finder.

15. Accurately capture video frame as JPEG from video, including 4K video.


- Pixel Perfect Photo (PPP) scaling engine with Lanczos filtering.

- Advanced file caching for fast photo browsing.

- Quick EXIF info simply by glancing at the status bar.

- Zoom ratio and pan position are maintained when viewing across photos in the list.

- Full support of Trackpad, Magic Mouse, and 3rd party mouse with scroll wheel (swiping, pinch zooming, panning, rotation)(2).

- Support retina displays.

- Support various color spaces, including sRGB, Adobe RGB and ProPhoto RGB.

- Support drag-and-drop of multiple files and folders into the main window and dock icon.

- Support SRT subtitle file for video playback.

- Ability to delete the camera RAW file together with the JPEG file, or delete just the RAW file, leaving the JPEG file alone. Files can be recovered from the Trash with the Put Back function(3).

- Unique HUD display - maximizes image display area.

- Support playback of videos taken with most digital cameras(4). You can pan and zoom the video with the trackpad during video playback.

- Ability to play animated GIF files.

- Focal length conversion to 35mm film. The app has built-in support for over 6000 digital cameras.

- UI is localized in 10 languages (English, French, German, Dutch, Italian, Spanish, Japanese, Traditional Chinese, Simplified Chinese and Korean).


- macOS version 10.10 (Yosemite) to 10.14 (Mojave).

1. Slideshow in a window is not supported on macOS 10.10 (Yosemite).
2. Two-finger zooming and image rotation with arbitrary angle are only available on Mac with a Trackpad.
3. User script needs to be installed via the Preferences panel in order to enable the Trash Put Back feature.
4. AVCHD video codec (.mts files) is currently only supported on macOS 10.11 El Capitan, 10.12 Sierra, 10.13 High Sierra and 10.14 Mojave.

What’s New

Version 2.3.9


Release 2.3.9:
- Updates ExifTool to version 11.53.
- Enhanced compatibility with NAS folders.
- Minor bug fixes.

Release 2.3.8:
- Adds "Tools > Update Selected Thumbnails" menu item.
- Adds image file alias support (requires Full Version Upgrade).
- Updates ExifTool to version 11.45.
- Minor bug fixes.

Release 2.3.7:
- Adds support for Canon .CR3 RAW files.
- "Copy To" and "Move To" can now perform multiple files copying/moving in Contact Sheet mode.
- Updates ExifTool to version 11.42.
- Various enhancements and bug fixes.

Release 2.3.6:
- Adds "Copy To" and "Move To" shortcut submenus.
- Adds the ability to edit the metadata of HEIC files.
- Updates ExifTool to version 11.34.
- Minor bug fixes.

Release 2.3.5:
- Updates ExifTool to version 11.32.
- Minor bug fixes.

Release 2.3.4:
- Adds EXIF.SubSecTimeOriginal support when sorting files with EXIF > Date time digitized (macOS 10.11 and above only).
- Updates ExifTool to version 11.31.
- Minor bug fixes.

Release 2.3.3:
- Fixes an issue with slow loading of very large images.
- Updates ExifTool to version 11.30.

Release 2.3.2:
- Zoom Toggle now magnifies under the location of the mouse pointer.
- Updates ExifTool to version 11.29.
- Minor bug fixes.

Release 2.3.1:
- Adds Drop pin/marker feature to Apple Maps and Google Maps.
- Updates ExifTool to version 11.28.
- Various enhancements and bug fixes.

Release 2.3.0:
- NEW! User defined Metadata Source for managing metadata.
- NEW! Rotate multiple images in Contact Sheet mode (full version purchase required).
- NEW! Edit macOS Extended Attributes/IPTC/XMP metadata (see "Edit > Edit Metadata").
- NEW! User defined labels for Finder tags (see Preferences... > Metadata).
- NEW! Inspector File Filter panel.
- Extended attributes are now fully preserved when updating an image file's metadata.
- Updates RAW engine to support more cameras.
- Updates ExifTool to version 11.27.
- Various enhancements and bug fixes.

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Ratings and Reviews

3.5 out of 5
39 Ratings

39 Ratings

Qualto ,

Good, but with one annoying thing.

I stumbled upon this looking to replicate the slideshow capabilities of the Windows photo viewers built in slideshow, namely being able to randomize order. I have not had a ton of time to mess around with it yet but overall it seems good, my only two complaint so far is that you have to have transitions in slideshow mode Would definitely bump this up to five stars if this small issue.

Developer Response ,

If you run the slideshow in full screen, you can hide the status bar. Preferences... > Appearance > Hide status bar in full screen mode.

You can also make the transition time, really short, like 0.5 secs., and use a simple transition, like Wipe from top. You can configure all these in Preferences...

In the next version, we'll let you set the transition time to 0.0, so that the no animated transition will occur.

dbuch75 ,

App so limited I could give it an evaluation before it wanted $

1.) App doesn't recognize two levels of folders. In other words: If I have a main folder with subfolders (projects) underwhich are my pictures are located it will not find the pictures. With over 50 subfolders that would require me 150 or more clicks to get the pictures into the app. I can’t figure out what the developer was thinking in building in this kind of limitation.

2.) After loading maybe three folders it wanted me to buy teh pro app. I imagened that it would only allow a few folders so I removed the ones I had already loaded so that I could select one with more pictues so that I could give the app a proper evaluation, but that was not to be. I was alread locked out. Now there’s no way to know if the funcitionality of the app unless I pay an unknown $. Had the app been more flexible maybe I would discover that there are features that would offset the limitations I pointed out in item #1 above. But the developers made it so I can’t do that.

Developer Response ,

1) Go under tools and select include subfolders. The default is done to avoid excessive scanning time if user has too many levels of subfolders.

2) The free version limits 3 drag-and-drops/open per session. You can always exits the app and start again to get around this limitation. It is because you can drag and image from a website and the app will download the image for you. You can always add a folder in Places and navigate any folders you want easily.

LGprice ,

Awesome - Exactly what I wanted

Faced with Adobe software that won’t work with the next MAC-OS upgrade and a large photo library, I have been desparately looking at ways to accomplish a basic photo management scheme on my own, using the MAC OS native indexing to store, search and filter metadata, keywords, etc. Something that won’t go obsolete if a software package goes obsolete or becomes too expensive.

I was looking at a simple photo viewer to help accomplish this task when I found ApolloOne. Amazingly, it does everything I am trying to accomplish and it is up to date and already works with the next version of the MAC OS. I can think of a few minor update requests that I will send to the developer, but overall I am very pleased. I can set this up in a way that will not damage my photo libraries. I am not sure if I will use the interface to move libraries, safer to do that in the file system I think.

I think this app, by it’s structure, will not have the destructive results caused by some OpenSource PhotoManagers- but it always pays to back up.
I bought the Pro Version of ApolloPro.

I am using SilkyPix DS PRO 8E for all my photoediting going forward, I have used SilkyP for years in addition to Adobe Products for both my Panasonic and Nikon cameras.


Anogeissus Limited
16.2 MB

OS X 10.10 or later, 64-bit processor


English, Dutch, French, German, Italian, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese

Age Rating
In-App Purchases
  1. Full Version Upgrade $14.99
  2. One Month Trial $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.