Is there a limit to how many videos can be monitored per channel?

No, there is no limit to the number of videos you can monitor. There is no limit to the number of links you can monitor as well.

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Can I cancel my subscription at any time?

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Can I test the service on one video before committing?

Can I use the product without a subscription? (pay only once)

Do I need to give full access to my YouTube account?

How does the tool detect broken links in my video descriptions?

How often do you scan for broken links?

What happens to my existing affiliate links - will they be changed without my permission?