When comparing A Photo Manager vs Aperture, the Slant community recommends A Photo Manager for most people. In the question“What are the best Android gallery apps?” A Photo Manager is ranked 10th while Aperture is ranked 14th. The most important reason people chose A Photo Manager is:
i.e. all photos that where added/modified since last backup can be added to a zip file on an attached usbstick
Specs
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Pros
Pro Incremental photo backup to zipfile
i.e. all photos that where added/modified since last backup can be added to a zip file on an attached usbstick
Pro Support for virtual albums
... that are independant of locaton in the physical-filesystem.
Pro Powerful geotagging/openstreetmap integration
A map shows where photos where taken. if you zoom in you see more details. Geotagging: select one or more photos + "set geo" + pick a point in the map ==> the selected images get that point. Filter images through the map: after selecting an area in the map (i.e. North Germany), the gallery will only show images from North Germany.
Pro It is free
Open-source, no ads, no user tracking.
Pro Can handle big image collections
15000+ images in 1000+ folders.
Pro Find photos by tags (aka keywords)
Pro Build in Vault mode
If enabled only selected/filtered Images can be seen. This allows you to savley hand over your android phone to someone else and allow him/her to view only those images in Gallery-View, Geographic-Map and Image-View that you have chosen before.
Pro Exif-Tag support (Edit and Find)
Pro Quick hirarchical folder navigation
Only folders that contain pictures are shown.
Pro Free and open source
Aperture is licensed under GPLv3 with source code available on GitHub.
Pro Good looking Material Design UI
Makes for a pretty UI. Also, makes the app consistent with UI guidelines laid out by Google, and as a result consistent with many other apps.
Cons
Con It is not available on the Google Play Store
You have to download it via f-droid.org store.
Con Only support for local photos
Con May be abandoned
According to homepage the app is no longer supported or updated. What has been available is often buggy, laggy and missing features, as it never got out of beta.