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scikit-learn (formerly scikits.learn) is an open source machine learning library for the Python programming language.

Collectr
TCG-Completist
Haki TCG
Poke EV
Pokémon TCG Online
Card Pilot
TCG Sync
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, Scikit-learn seems to be more popular. It has been mentioned 41 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | scikit-learn.org | tcgjoin.com |
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| Platforms | — | |
| Company | — | Startup from Spain · 1 - 9 employees |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Scikit-learn 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
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Walkthroughs and reviews on video.
Learning Scikit-Learn (AI Adventures)
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Scikit-learn 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 Scikit-learn 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.


Scikit-learn is an open source machine learning library for Python that's built on the SciPy and NumPy scientific computing libraries, plus Matplotlib for plotting data. It supports both supervised and unsupervised...
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Recommendations tracked on public social media and blogs since March 2021.


Reachability says who could be compromised. Behavior says who probably is. Sysmon Event ID 1 records every process with its parent. Reduce each to a parent>child token, keep only tokens that are new to each host since the intrusion... - Source: dev.to / about 1 month ago
Certutil.exe or notepad.exe opening an external connection lands in rare because, fleet-wide, those processes almost never egress. Tune the <= 3 threshold to your environment size. For a more principled version, score each (process,... - Source: dev.to / 5 months ago
Pre-configured environment. A working VM or container with Jupyter, pandas, scikit-learn, and transformers already installed. Realistic security datasets loaded. GTK Cyber students work in the Centaur VM, a free Apache 2.0 portable lab.... - Source: dev.to / 6 months ago
Tracking TCGJoin since Sep 2026.
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