New page-change tracker leads offer distinct free-tier models

PageSentry lists five watches, hourly checks, and no account or card, but depends on Chrome being open and compares pages locally; SnapRender claims 200 free monthly renders without a card. PageRadar now advertises five pages, daily checks, and no card, alongside visual diffs, selectors, and several alert channels; these are promotional claims awaiting verification. WebChangeMonitor is open source, while Diffmonitors reports hourly free checks and email/webhook alerts but does not state card requirements.