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Re:Show HN: Dffer – Get notified when a website changes by awill on Friday October 06, 2017 @11:29AM (#15417545)
There are many, many competitors in this space (visualPing, changeTower, versionista, followThatPage, trackly.io). Most have similar pricing to Dffer, but some are completely free (possibly with worse UI).

I wonder whether this sort of freemium model works, because there are some people who's use case (like mine) absolutely isn't worth spending money on, but I'd like more than 3 checks for free. Obviously I'll take a worse UI that's free over spending money on such a ridiculously simple app. I could literally buy an EC2 instance just to run 10-20 daily cron jobs for less than signing up for Dffer.

My use case is to use trackly.io to see when new firmware/software updates come out for devices I own. But of course, that's never something I'd be willing to pay for.

Re:Show HN: Dffer – Get notified when a website changes by aakilfernandes on Friday October 06, 2017 @01:14PM (#15418421)
There are some users who would actually rather pay $5/mo than use a free service. Thats because paying money gives the impression (real or not) that the service is more likely to stick around and be fixed when it goes down.
Re:Show HN: Dffer – Get notified when a website changes by devdad on Friday October 06, 2017 @03:39PM (#15419770)
For me, $5 for not having to setup cronjobs is worth it.
Re:Show HN: Dffer – Get notified when a website changes by awill on Friday October 06, 2017 @04:18PM (#15420072)
I don't think price is about the task (cronjobs), it's about how you value the output.

If I'm using cronjobs for some trivial unimportant task (like checking for firmware updates), I am not willing to pay. If I'm using cronjobs for super important competitive analysis, sure I'd pay.

Re:Show HN: Dffer – Get notified when a website changes by alexdean on Friday October 06, 2017 @05:10PM (#15420514)
Do any of these companies offer webhooks, or are they all oriented at human users reading emails?