ReminderFeed is online reminders service that looks similar in design and mechanics to Resnooze but uses RSS as medium. And I am willing to check anything RSS.
What it does
Service allows to setup daily reminders for specific duration (from date to date). No account is needed and there is option to protect reminder from edits. Otherwise it can be edited by anyone who knows direct reminder URL.
For every reminder there is RSS feed provided. It will change daily with new instance of reminder. Previous one is removed. This way it won’t keep history if there were edits, otherwise works fine.
In theory it would make sense to use in-future records for feed mechanics, but few feed readers process that properly.
ReminderFeed is probably at best for reminders shared by several people. It is near-instant to setup and it is easy to distribute link to feed, without any need for signups or gathering personal details like email addresses.
Service is up for several years. but it seems like there weren’t many features added to it. I see no way for such basic tweaks as interval or time of day to generate reminder at.
It does perform core function but lacks polish and precision that could get it on par with Resnooze.
Service is very focused and while it could fine plenty of use where RSS as medium is important, altogether function set is limited.