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Alternatives

Products that do what Passlit Openbook does

See every company tracking you in real time

  1. 1

    Free forever website monitoring & status pages 🤩

    2018

  2. 2IB

    I built Site Spy after missing a visa appointment slot because a government page changed and I didn’t notice for two weeks. It watches webpages for changes and shows the result like a diff. The part I think HN might find interesting is that it can monitor a specific element on a page, not just the whole page, and it can expose changes as RSS feeds. So instead of tracking an entire noisy page, you can watch just a price, a stock status, a headline, or a specific content block. When it changes, you can inspect the diff, browse the snapshot history, or follow the updates in an RSS reader. It’s…

    Mar 2026 · sitespy.app

  3. 3ME
  4. 4

    Easily track anything on the web

    2014

  5. 5

    Real time tracking of App Store reviews across 7+ countries

    2025

  6. 6IM

    TLDR: I made a public only web analytics without signup. Stores views and visitors for 10 days before deleting data. Exactly 25 days ago today I posted here, proud of my new web analytics. The response was mixed and my post even got flagged (understandable). It was my first real launch and I actually made a sale just a day later of 49$(!). Back then my project was pay once, keep forever. Since then I have sadly went over to the dark side (subscription based). Anyways, I never went back to look at the post after the first two hours, turns out I got a lot of answers. Most answers was something…

    2024 · indielytics.link

  7. 7

    Subscription tracking for people who read privacy policies

    Jun 2026 · mysubledger.com

  8. 8IL

    Hey Guys, We created Leadmachine after a HUGE pivot on ignite100(UK incubator). We could see the pain of all the other startups wasting money and buying poor leads while struggling to find those early customers. Wouldn't it be cool to have contact details for all websites using Olark or Google analytics while turning over £100,000 in the UK? We can do that with Leadmachine. I'd be happy to answer any questions you may have or listen to feedback!

    2012 · leadmachine.io

  9. 9

    Track your spends,subscriptions not your data. 100% offline

    May 2026 · moneysplit.chetanpiduru.dev

  10. 10
    Peek6

    Real-time website analytics. No cookies. No complexity.

    Mar 2026 · trypeek.dev

  11. 11IB

    Hi everyone! I’ve been working on a small personal finance tool called Tender for the better part of a year. I got tired of doing expenses by hand - going through several accounts to figure out refunds, subscription cancellations, getting paid back via venmo, etc. I’d get to the point where I’d have to go through months of transactions at a time if I got lazy and fell behind. The workflow in Tender is centered around getting to inbox-zero. Transactions leave the inbox when they’re categorized and there’s a basic rules engine for automation. You can also do things like add notes, set…

    2023 · tender.run

  12. 12AW

    I've tracked the top 3000 subscribed (and some subreddits that I visit frequently) subreddit's active user over time, so you know when to post to get the most feedback! I come from a nodejs background, and this is the first time coding with Go, so the structures might not be standard. But feel free to give me any feedbacks!

    2024 · redditdb.info

  13. 13

    Your competitors are making moves. We're watching.

    Apr 2026 · tabloid.site

  14. 14SA

    Hey HN, I built Subwise to solve a personal pain point: keeping track of all the subscriptions I’ve signed up for — from SaaS tools to streaming services. What it does Automatically detects subscriptions from checkout pages using a browser extension Syncs with a web dashboard that categorizes, tracks, and reminds you of recurring charges Gives spending analytics, trends, and cost-saving insights Supports multi-currency tracking (USD, PHP, SGD) with live conversion Why I built it Too many tools focus just on logging expenses. I wanted something that works more like a smart assistant —…

    2025 · usesubwise.com

  15. 15

    Website uptime tracking that counts your live revenue loss

    May 2026 · sitebleed.com

  16. 16

    Modern API monitoring for indie hackers & small teams

    Feb 2026

  17. 17

    Track any webpage for changes — get instant alerts

    Feb 2026

  18. 18

    Never miss a change that costs you money

    Jan 2026

  19. 19

    Buying signals on Reddit, X & LinkedIn + 1-click replies

    Jun 2026 · celerflow.ai

  20. 20

    Find hidden subscriptions & money leaks in your bank CSV

    Jun 2026 · mymoneyleak.com

  21. 21

    Get 100 qualified leads in 5 minutes

    Jul 2026 · getunlisted.live

  22. 22

    Find your next client hiding in Google Maps.

    Jul 2026 · fludileads.co.uk

  23. 23AC

    Hello HN! I'm excited to share my product that helps companies to track their competitors, their website updates, new features, social media activity etc. I already have the first set of early adopters (thanks to a pretty good ProductHunt launch) who're using it on the daily basis so I'm excited to remove the waiting list and share it with everyone. Cheers!

    2023 · rivalhunt.co

  24. 24

    Finds affiliate links that stopped earning, not just broken

    Jun 2026 · partnerrevenueguard.com

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