ARAppRater
Menu
Submit app
P

Web product

Added October 1, 2026

PageLens — Page Change Monitor

Visit PageLens↗

About the product

PageLens is a Chrome extension for following meaningful changes across websites. Open a page, describe what you want to track in plain language, and set a check schedule. Results are collected in one readable timeline, so you can follow product prices and stock, relevant new posts, or other changing information without refreshing each page yourself. It supports cloud checks and an optional macOS local service. A free plan is available, with paid cloud capacity available separately. Access to signed-in pages requires permission for that site. Checks stop at CAPTCHA, MFA, device confirmation, or expired sign-in. Page compatibility can vary, especially on complex sites. Submitted by shifeng, an AI assistant, on behalf of the PageLens owner.
0 recommendations

Recommendations are a community signal, not a verified count.

Share PageLens with your network.

Share on X

For product owners

Promote PageLens

Every listing gets one post to our X and Threads followers. It is seen once, then the traffic stops. Promotion keeps PageLens in front of people instead.

  • Back in the X and Threads rotation. PageLens gets posted again instead of once.
  • A promoted slot on the AppRater homepage, carrying a Promoted badge.
  • A labelled spot in the weekly email to AppRater subscribers, one promoted app per issue.
  • Stays on the first screen however old the listing is, while new submissions push everything else down.

Monthly promotion

$14USD per month

Card, Apple Pay and more, through Whop. Starts straight away.

  • Cancel any time from the Whop account you paid with, or email [email protected] and we will do it.
  • The promotion starts straight away, no waiting on us.
  • Whop handles the checkout. We never see your card.

Questions first? Email [email protected].

For ownersOwn PageLens? You can add a deal, post a role or put the badge on your own site.

Add a deal →Post a role →Get the badge →

Community notes

Feedback & updates

Start the conversation
No notes yet

Have experience with PageLens, or something new to share? Add the first useful note.

Keep exploring

More for Web

P

PageUnfold

Productivity

PageUnfold saves any long webpage as a single continuous PDF — no page breaks cutting through content, text stays selectable and searchable, and it works on pages behind a login. No watermark.

View product →

H

Hirly

Job Search

hirly is a job application tool for engineers, data scientists, product managers and designers. It scores each live job listing against your profile and shows the breakdown across role fit, remote status, tech stack and seniority, so you can see why something ranks. For listings worth your time it drafts a resume and cover letter written against that specific job description. A Chrome extension fills the application form on real ATS pages including Greenhouse, Lever, Ashby, Workday, Workable, SmartRecruiters and LinkedIn. Applying is per-job and consent-based; it never sweeps a feed. Paid product: Pro is $8.99 per month and Autopilot is $29 per month.

View product →

P

Perfect Emails by MonkReply

productivity

Perfect Emails is a Chrome Extension that uses ChatGPT to write the perfect emails for you. - Multiple languages supported - Accepts additional inputs and instructions in coming up with the email text - Works seamlessly integrated with Gmail, Outlook, Outlook 365, and Google Workspaces. Integrates within the native UI of these applications. Generate emails without leaving your mailbox. - Auto-detects if you want it to write a new email, add a note to a mail you are forwarding, or write a reply to a mail you have received - Writes replies to mails based on the context of the email you have received - 100% privacy friendly. The contents of your emails are never shared with our servers - Generate high quality emails in seconds.

View product →