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Fluxguard might be a bit more popular than PageCrawl.io. We know about 1 link to it since March 2021 and only 1 link to PageCrawl.io. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Pagecrawl.io - Monitor website changes, free for up to 6 monitors with daily checks. - Source: dev.to / 3 months ago
If you are really serious about keeping up-to-date (and probably few people are), then "watch" the page from which you downloaded the appimage with some notifier such as [FluxGuard[(https://fluxguard.com/). Because AppImages are so self-contained, you really don't need to update them unless you are needed new features or encounter bugs since updates to your system will almost never affect them. Source: over 2 years ago
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