When comparing Moom vs Affinity Photo, the Slant community recommends Affinity Photo for most people. In the question“What are the best Mac OSX apps for someone that's new to Apple?” Affinity Photo is ranked 5th while Moom is ranked 11th. The most important reason people chose Affinity Photo is:
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Ranked in these QuestionsQuestion Ranking
Pro Adds a zoom button for all apps
Moom adds an overlay zoom button to the corner of all apps which allows any app to go full screen or be placed to certain sections of the screen (such as the top, bottom, or sides). This works even on apps that do not normally allow for full screen views.
Pro Multi-monitor support
Moom has excellent support for multi-monitor setups. You can drag a window to the edge of your screen into another monitor and snap it there.
Pro Simple customization
While you can set keyboard shortcuts, Moom has a very easy-to-use GUI and GUI-based customization features to help you get going right away.
Pro You can save tiling window position and size
Users can set window position and size themselves, allowing for a great way to set up a tiling window experience.
Pro Customizable keyboard shortucts
Moom comes with many preset keyboard shortcuts. The user can go into the graphical settings of the app and change any one of them to a different combination of keys.
Pro Windows can be snapped to the edges of the screen
In addition to using the grid or the overlay, Moom can move and zoom windows by dragging them to screen edges.
Pro Lifetime updates
Pay once, get updates forever.
Pro Compatible with Photoshop PSD files
Affinity Photo can import and export .psd files.
Pro Interface will be familiar to those coming from Photoshop
The interface, especially the Photo persona, is laid out in way that's very similar to Photoshop - a panel for icons for tools on the left, a panel for information and settings on the right.
Pro Supports layer styles
Layer styles allow non-destructively applying effects to a layer.
Pro Personas allow separation of concerns
At a high level the interface is organized into broad groups of tools called Personas. Personas like Photo for in-depth image manipulation, Liquify for warping the image, Develop for basic RAW photo development and Export for exporting. Each persona displays only those tools that are needed for that task.
Pro Great performance
Uses the GPU extensively for fast speed on any platform.
Pro Powerful effects
Dozens of visual effects available. All run extremely fast with live previews
Pro Non-destructive adjustment layers
extensive adjustment layers are non-destructive.
Con UI for settings can be confusing
The settings for the app are pretty jumbled and are hard to get a grip of, especially for first time users. While all the settings one would need are there, they are difficult to find or understand, which requires a good bit of playing around with the settings in order to get a feel for them and what they offer.
Con Not free
Moom is not free: it costs $9.99.
Con Two steps needed, while some tools only need one
Con Limited selection of plugins
Plugin support was only recently added to AP and not many plugins have been created for the program so far.
Con Can not import gimp or krita files
Free alternatives like gimp (and krita) are sort of "go to" apps i can allways install and use for simple image editing or graphics on any computer. I find affinitys support for photoshop is great, but having support also for opening and editing gimp and krita would make the versatility and use of this program absolutely superb.