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The most fun way to learn to code.

Papermark
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See who really read your proposal, deck, or report, with bots filtered out of your counts. Signals then tell you who's interested and worth a follow-up, so you follow up at the right moment and win more deals. Free; Pro $9/mo or $84/yr.

Which is more popular?
Based on our record, Codédex seems to be more popular. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | codedex.io | pdftrackr.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from Poland · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Codédex yet.
Every proposal, pitch deck, or client report you send can win or lose a deal, and PDFTrackr tells you exactly how it landed. Share it as a secure tracked link and see who opened it, which pages they read, how long they spent, and where they dropped off, with bots and email scanners filtered out...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Codédex yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
No Codédex videos yet. You could help us improve this page by suggesting one.
Tracking with Page-by-Page Analytics
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Codédex and PDFTrackr.
PDFTrackr's answer:
Next.js, TypeScript, PostgreSQL, React, Docker, DigitalOcean, Cloudflare
PDFTrackr's answer:
It's the only PDF tracker that shows you which views were real. Bots and email scanners are filtered out of your counts automatically, and the dashboard shows exactly what it removed. Then Signals tell you who came back and who's worth a follow-up, with a per-recipient verdict on whether a specific person read it, so you act on real buyers instead of inflated numbers.
PDFTrackr's answer:
Most trackers count every open, including bots and email scanners that never read a word. PDFTrackr filters them out and shows its work, so the numbers are real. Then Signals do the analysis for you: who's genuinely engaged, who's worth a call now, plus a per-recipient verdict and real-time alerts with emailed Reading Reports. Full page-by-page analytics are free with a 12-month history and virus scanning, no credit card; Pro is $9/month or $84/year.
PDFTrackr's answer:
Sales and business-development teams, consultants, agencies, and founders raising on a pitch deck. Anyone who sends proposals, decks, and reports and needs to know who actually read them and when to follow up.
PDFTrackr's answer:
Built to answer the question every sender has: did they actually read it, and when should I follow up? Instead of a vanity view counter that inflates numbers with bots, PDFTrackr filters out the noise and turns real reads into a shortlist of who's worth a call.
PDFTrackr's answer:
Share your experience with using Codédex and PDFTrackr. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of Codédex yet. Be the first one to post
I'm a photographer, been using this for 2 weeks after getting fed up with papermark. i just need to know if brides open my wedding packages, not run a fortune 500 data room lol. pdftrackr tells me what pages they look...
Recommendations tracked on public social media and blogs since March 2021.


I'm a new coder too. What helps me is finding a good place to learn the most basic principles and having 2-5 things I want to do. I started with codedex.io , learning Python and HTML and then took their courses and moved on looking for... Source: over 3 years ago
I think you should focus on HTML, CSS, and JS, starting with HTML. I just started HTML on a website called codedex.io. Pretty cool so far but I feel like I'm getting into a brand new thing haha. Source: over 3 years ago
I've been learning Python on a website called codedex.io for about 6 months. It's been great for me so far. I just started on Classes and Objects. Give them a try, you might like them. Source: over 3 years ago
Tracking PDFTrackr since Sep 2025.
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