
Collectr
BinderDex
CollX
SleeveUp.app
TCG Catalogue
Dex
Card Ladder
AI-powered Pokémon TCG collection tracker: real-time value for any card, in any condition and language, plus wishlist target prices and master set tracking.
VS Code
CodePen
GitHub
Node.js
RegExr
JSFiddle
CodeSandbox
Free ebook for the JS Beginners

Which is more popular?
Based on our record, Eloquent JavaScript seems to be more popular. It has been mentioned 218 times since March 2021.
Website, pricing, platforms and company facts side by side.
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EJS
Eloquent JavaScript
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| Website | darkdex.app | eloquentjavascript.net |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Italy · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

DarkDex is a web app for Pokémon TCG collectors. Its core is an AI-powered pricing engine that estimates the value of any card in any condition and any language, not just English near mint like most other apps, so you always know what your collection is really worth. Beyond pricing, DarkDex gives...
No description of Eloquent JavaScript yet.
What each product offers, as listed by its team.

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

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Why this product is good
Recommended for
Overall verdict
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Eloquent JavaScript A Modern Introduction to Programming 3rd Edition by Marijn Haverbeke review
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How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing DarkDex.app and Eloquent JavaScript.
DarkDex.app's answer
DarkDex estimates the value of any Pokémon card, in any condition and any language, not just English near mint like most trackers. What sets it apart:
DarkDex.app's answer
Most competitors are mobile scanner apps focused on English near-mint prices. DarkDex is different:
DarkDex.app's answer
Pokémon TCG collectors who want to know the real value of their collection and manage it seriously:
DarkDex.app's answer
DarkDex began as a personal tool. A Pokémon collector wanted to know what his collection was really worth and got tired of English-only, near-mint-only prices and checking values by hand. It grew into a full web app and is now open to everyone, still shaped by feedback from the collector community.
Share your experience with using DarkDex.app and Eloquent JavaScript. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Tracking DarkDex.app since Jul 2026.
If you haven’t read Eloquent JavaScript , go check it out. It’s one of my all-time favourite programming books — hands down. - Source: dev.to / 12 months ago
Videos, blogs, text-based teachings, YouTube project-based learning, books, and the like are all examples of various methods and mediums of acquiring skills, especially in the software engineering industry. As I continue to navigate... - Source: dev.to / almost 2 years ago
Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS... - Source: Hacker News / about 2 years ago
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Collectr is the world’s fastest growing collectibles portfolio manager.
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Build and debug modern web and cloud applications, by Microsoft
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Track Pokémon card value, save grails, watch price moves, and search cards fast with BinderDex for iPhone.
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A front end web development playground.
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CollX (“collects”) answers the age-old question: “What’s it worth?” The app can scan any baseball, football, or basketball card and instantly ID it and get the avg market value.
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Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
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