When comparing CCleaner vs FairEmail, the Slant community recommends FairEmail for most people. In the question“What are the best Android apps?” FairEmail is ranked 6th while CCleaner is ranked 40th.
Ranked in these QuestionsQuestion Ranking
Pro Not simply an uninstaller
CCleaner is a general Windows maintenance tool but it also has an uninstaller built-in.
Pro Keeps bundling minimal and optional
A common drawback for freeware of this quality is when they are bundled with crap-ware. This only includes Google Chrome and can be easily opted-out of.
Pro Open source
Pro Multiple account support
Multiple identities per account, notifications per account or contact.
Pro Actively maintained
It is actively maintained. The used libraries are up to date and bugs are fixed quickly.
There are no trackers within the app and trackers sent with mails are disabled by default. This app lets you read and compose emails with your privacy in your very own hands.
Pro Fast and customizable
Privacy features are excellent.
~ 20 MB.
Pro Identities support
Pro Two way synchronization
Pro Flat conversation threading
Pro Encryption support
Supports both OpenPGP and S/MIME encryption for total privacy.
Pro Support for safety and low-bandwidth
Allows to configure maximum size of email downloaded immediately.
Pro Can show plain text of html mails
Pro Show links before opening
Some HTML mails may show different links and link texts, this app however will show you the real link before opening, protecting against phishing and scams
Pro Recognize spoofing internationalized domain names
Some domain names may use non-ASCII characters looking similar to the latin alphabet (e.g. some cyrillic characters). This app will show you the punycode representation of the domain, if that is the case and thus protect you against phishing and scams.
Pro Reformat the HTML mail for increased privacy
Some HTML mails may include ressources that can track you. This app doesn't load them by default, but reformats the text, increasing both privacy and readability.
Pro Autoconfiguration with open standards
There are open standards for any email provider to show how an email client should connect to the server. This app supports both RFC 6186 as well as Thunderbird Autoconfiguration standards.
Pro OAuth support for most common mail providers
Supports authenticating with the mail server using OAuth, thus increasing security.
Pro Low RAM usage at the right setings
Con Uninstaller function limited
CCleaner does not clean up leftover files after an application's uninstaller has been run, nor can it handle uninstalling applications that do not have an uninstaller.
Con Can't uninstall or detect program without uninstaller
No difference to windows uninstaller. Can't uninstall program with no uninstaller and doesn't even aware of their existance.
Takes up too much ram and CPU, and not a good cleaner anyway.