
Pandas
Scikit-learn
OpenCV
Dataiku
Exploratory
htm.java
Figure Eight
NumPy is the fundamental package for scientific computing with Python

Collectr
TCG-Completist
Pokémon TCG Online
CardPrices.io
Pokemon Trading Card Game
Scan Your MTG
Magic: The Gathering Online
Scan, value and build decks for 10 TCGs — Pokémon, Magic, One Piece, Yu-Gi-Oh! and more, in one AI-powered collection app.

Which is more popular?
Based on our record, NumPy seems to be more popular. It has been mentioned 122 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | numpy.org | tcgjoin.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from Spain · 1 - 9 employees |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of NumPy yet.
TCGJoin is an all-in-one platform for trading card game collectors. Scan your cards with the camera, get an up-to-date value for your collection, track set completion and build decks with AI — across 10 games from a single account. Supported games: Pokémon, Magic: The Gathering, One Piece Card...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
No analysis of TCGJoin yet.
Walkthroughs and reviews on video.
Learn NUMPY in 5 minutes - BEST Python Library!
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing NumPy and TCGJoin.
TCGJoin's answer:
Two overlapping groups.
The core audience is collectors who have accumulated more cards than they can track by memory typically returning players who came back to Pokémon or Magic as adults, plus long-time collectors finishing sets. They want to know what they own, what it's worth, and what's missing. Mostly 20–45, Europe first (Spain and the UK are the strongest markets today), with the app published in 8 languages.
The second group is competitive and casual players who use the deck builder to test lists against what's already in their binder before spending money.
Local game stores sit alongside both: they use TCGJoin as a reference their customers can trust, rather than as a sales channel.
TCGJoin's answer:
Most card apps are built around a single game. TCGJoin is built around the collector. One account covers 10 trading card games Pokémon, Magic: The Gathering, One Piece, Yu-Gi-Oh!, Lorcana, Dragon Ball, Digimon, Naruto Kayou, Riftbound and football stickers so your whole collection lives in one place instead of five separate apps.
The AI scanner does the heavy part: point your camera at a card and it identifies not just the card but the exact variant set, language, edition, holo treatment which is where most of the value difference actually sits. From there you get live valuation, set completion progress, and an AI deck builder that checks your list against the current format rules using cards you already own.
Everything is available in 8 languages, and prices are shown openly rather than hidden behind a listing.
TCGJoin's answer:
Three reasons.
It's collection-first, not marketplace-first. Many tools exist to sell you cards, so the price you see is the price someone wants you to pay. TCGJoin starts from what you own and what it's actually worth you can use it for years without buying or selling anything.
Variant-level accuracy. Knowing you own "a Charizard" is useless. Knowing which print, which language, which edition is the entire difference between a €3 card and a €300 one. That's what the scanner is built to resolve.
One app instead of five. If you play or collect more than one game and most people do now you stop juggling a Pokémon app, a Magic app and a spreadsheet.
TCGJoin's answer:
TCGJoin started from a pretty ordinary frustration: card prices are opaque, and that opacity is profitable for everyone except the collector. Values swing on hype, listings are inconsistent, and a beginner has no realistic way to tell whether the card in their hand is worth €2 or €200 which is exactly the gap speculation lives in.
The first version was a scanner built to answer one question honestly: what is this card, precisely, and what is it worth right now? Collectors kept asking for the next game, and the next, until it made more sense to build one platform covering every major TCG than to keep building separate apps.
The goal hasn't changed: give collectors the same information the people setting the prices already have.
TCGJoin's answer:
The backend runs on NestJS with TypeScript, following a clean architecture with CQRS, backed by a relational database holding the full card catalogue sets, variants and pricing history across all supported games. The frontend is React with TypeScript, server-rendered for SEO across the 8 published locales. Card recognition uses computer vision models for detection and matching, with a variant-resolution layer on top. Everything runs on cloud infrastructure with automated CI/CD and monitoring.
TCGJoin's answer:
Spanish TCG gamers
Share your experience with using NumPy and TCGJoin. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


SciPy provides a collection of algorithms and functions built on top of the NumPy. It helps to perform common scientific and engineering tasks such as optimization, signal processing, integration, linear algebra, and...
Scipy is used for mathematical and scientific computations but can also perform multi-dimensional image processing using the submodule scipy.ndimage. It provides functions to operate on n-dimensional Numpy arrays and...
Numpy It is an open-source python library that is used for numerical analysis. It contains a matrix and multi-dimensional arrays as data structures. But NumPy can also use for image processing tasks such as image...
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Recommendations tracked on public social media and blogs since March 2021.


Unmatched integration with ML/AI ecosystems through NumPy, TensorFlow, and PyTorch. - Source: dev.to / about 1 year ago
The book introduces the core libraries essential for working with data in Python: particularly IPython, NumPy, Pandas, Matplotlib, Scikit-Learn, and related packages Familiarity with Python as a language is assumed; if you need a quick... - Source: dev.to / about 1 year ago
AI starts with math and coding. You don’t need a PhD—just high school math like algebra and some geometry. Linear algebra (think matrices) and calculus (like slopes) help understand how AI models work. Python is the main language for AI,... - Source: dev.to / over 1 year ago
Tracking TCGJoin since Sep 2026.
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