When comparing Amazon S3 vs Google Drive, the Slant community recommends Google Drive for most people. In the question“What are the best cloud backup services?” Google Drive is ranked 1st while Amazon S3 is ranked 31st. The most important reason people chose Google Drive is:
Google account holders and non-holders can be set to access and/or collaborate on files/folders in real-time. Additionally, you can find files you've shared not only by filename but by person you've shared the files with.
Specs
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Pros
Pro Free for small sites
The free tier will cover most personal home pages.
Pro Easily scalable
There's no cap in storage or traffic. Cost is based on usage.
Pro Super cheap with a year's worth of free service
S3 storage costs $0.03 per GB and gets cheaper the more is stored, PUT, COPY, POST, or LIST requests are $0.005 per 1,000 requests and GET and all other requests are $0.004 per 10,000 requests. And with some restrictions is available for free for a year.
Pro Fast setup
You can provision a S3 bucket, upload files, setup the DNS, and go live in under 10 minutes.
Pro Fast
S3 is fast even without a CDN.
Pro Easy to setup with CDN
Simple to set up with Amazon's CloudFont CDN.
Pro Supports custom root domains
To set up a custom domain, Amazon Route 53 has to be configured as the DNS provider with the domain registrar, two buckets have to be created and configured with the name the same as the domain - one including, one excluding www. A more in-depth explanation can be found here.
Pro No security risks
There's no server to manage, so no security issues to patch or keep watch.
Pro File sharing & collaborative editing
Google account holders and non-holders can be set to access and/or collaborate on files/folders in real-time. Additionally, you can find files you've shared not only by filename but by person you've shared the files with.
Pro 15GB free
This space is shared across Drive, Gmail & Google Photos.
Pro Built-in office suite
Includes tools for writing, presentations and spreadsheets.
Pro Integrates with other Google services
For example, you can use search to search through both Drive and Gmail.
Pro Extended functionality via apps
Third party Drive applications running in Chrome or Android can add functionality such as image/video editing, project management, flowchart creation, etc.
Pro Mobile integration
You can work from any device, especially mobile.
Pro Save files to drive directly from Gmail
Drive lets you save any file from your email.
Pro Cheap for extra storage
$1.99 per 100GB, for up to 16TB.
Pro Revision control
By clicking Ctrl + Alt + G in Windows or Command + Alt + Shift + G is OS X you can access previous version of the file.
Pro Indexes images
You can search images by object, place, or face when they've been added to your google photos collection. Google Assistant also helps you find screenshots that could be archived, images that aren't in the correct orientation and pictures that would work well as animations or albums.
Cons
Con Credit card needed
Amazon will try to retrieve the money every month after one year trial. If you have no money you will be banned.
Con Setting up automatic public permissions is confusing
By default, S3 sets uploaded files to private. You can configure your S3 bucket to auto-apply public permissions by copying and pasting a template. But the template might be intimidating to some users.
Con Confusing web interface
Amazon S3's web interface is quite confusing, especially for first-time users, but there are many tutorials online that help beginners to set up a static site on S3.
Con No SFTP support
Amazon S3 does not have SFTP support, instead the S3 web interface has to be used.
Con No official client for Linux
Google as of yet has a client for Linux, leaving many who use the service forced to use third party apps or the webpage.
Con Data privacy not guaranteed
Data privacy is widely known as one of Google's weaknesses. Data shared through Google is most likely matched up with the user's profile inside other Alphabet inc. subsidiaries, and, due to the business model, used commercially.
Con Terms and Conditions allow Google to own anything on Google Drive
They can create derivative works, they can perform it, they can modify it, and they can publish it at will. There are many other specific rights they take over your product. Read the Terms carefully and compare with ANY others.
Con Very unreliable
Desktop client constantly crashes.
Con No WebDAV, FTP or SFTP
It supports none of these common protocols used for access to network storage, which severely limits OS integration. You are forced to use the browser or a standalone client, which isn't possible on all systems.
Con Low bandwidth
Can't even upload all my files to this
Con Low sync speed
Con No universal Windows app
Con Doesn't integrate well with OS
