AI website change monitoring for Mac

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PageDog is a local-first macOS app for monitoring exact website changes without repeatedly checking pages by hand.
Choose the part of a page that matters, write one testable goal, and schedule the check. Examples include:
PageDog runs checks through your local browser session and uses hosted AI to decide whether the goal happened. Browser sessions and check history stay on the Mac; only evidence from the selected page area is sent for evaluation.
Scheduling supports intervals, daily windows, specific times, and weekdays-only checks. When a goal is met, PageDog sends an email alert with evidence. The free plan includes 20 completed AI checks per month. PageDog supports macOS 12 or later on Apple silicon and Intel.
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