When comparing Wally vs Google Sheets, the Slant community recommends Wally for most people. In the question“What are the best Material Design apps?” Wally is ranked 32nd while Google Sheets is ranked 66th. The most important reason people chose Wally is:
The app allows searching for wallpapers by text and tags as well as allows filtering them by categories, resolution, and/or aspect ratio.
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Pros
Pro Lots of different ways to find wallpapers
The app allows searching for wallpapers by text and tags as well as allows filtering them by categories, resolution, and/or aspect ratio.
Pro Has a huge selection of high quality wallpapers that's constantly updated
The app uses wallhaven.cc as the source for wallpapers. Wallhaven.cc, the successor of wallbase.cc, is a vast resource for high quality wallpapers.
Pro Scalable, customized organization
Infinite row/columns and all the separate tabs to play with. Trips can be organized with as many attributes and calculations as you see fit.
Pro Good for budgeting
Since it is a spreadsheet, very easy to calculate budget, and any secondary calculations as well (e.g. cost/day, cost/location, etc.)
Pro Easy to share
Google Sheets are always accessible on the cloud, and easy to control permissions to share with relevant parties.
Pro Easy to export
Physically (printing) and otherwise (converting to excel, attaching to emails).
Pro Cross-platform
Can be accessed from any device via the browser, or Google's iOS and Android apps.
Cons
Con app not available in play store
Con Buggy
Multiple people are reporting that the app can sometimes crash or crash the launcher or not work properly in some other way.
Con Not optimized for travel
Unlike travel-specific websites, Sheets won't be able to tell if one link is a flight, and another is a hotel reservation, nor will it be able to know which cells correspond to what leg of the trip.
Con Zero foundation
While there are sample layouts (see Travel planner), it's likely that each person's trip planning needs will be unique enough that it's better to start from scratch. Of course, once you use Sheets for one trip, it'll be easier and faster to set it up for future trips.