CardStream
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Magic: The Gathering
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s3-lambda
Buying and selling Magic the Gathering cards has never been easier. All parts of buying and selling are streamlined and easy to do. Not only that, but deck management, suggestions, improvement, cuts, and play testing are easier than ever.
CardStream s3-lambdaCardStream's answer
Swift, Node.js, Postgres, Prisma, ScryFall and EDHREC APIs.
CardStream's answer
Magic the Gathering players and/or collectors, or buyers and sellers of MTG cards.
CardStream's answer
Why Choose CardStream Over Other MTG Apps
No more risky Facebook trades or PayPal disputes. CardStream handles protection automatically.
Real-Time Peer Trading
Trade live with another user, adding, removing, and confirming cards together
Instant market valuation built right in
No other app lets you actually trade live with escrow, valuation, and reputation in one flow.
Smarter Deck-Building and Playtesting
Playtest decks with realistic battlefield simulation to tap, untap, draw, and move cards between zones
Visualize mana curves, synergy, and color balance
Quickly refine decks before buying or trading
Moxfield builds decks. CardStream lets you play them.
Built-In Social Network
Share decks, collections, and trades in a Magic-focused feed
Build a profile and reputation around your activity
Facebook and Reddit are noisy. CardStream is built for players, not just posts.
Pro-Grade Data and Transparency
Pulls live pricing and set data from the Scryfall API
Keeps detailed transaction and performance history for every card
Provides full auditability for serious collectors and investors
Beautiful, Fast, Native iOS Design
Built with SwiftUI and SwiftData, optimized for responsiveness and offline use
Every card feels tangible, with smooth animations and haptic trade confirmations
Prioritizes privacy and ownership — your collection stays your data
If you had to sum it up in one sentence: CardStream is the all-in-one Magic: The Gathering companion built to scan, trade, play, and connect.
CardStream's answer
The founder was selling cards on Ebay and found they were taking 14.5% fees + 10% for promotion - where promotion was just having a higher listing than others - and that was adding up to around 25% of the card's value. For a $100 card you would receive $75 or less. Also, shipping had to basically be set up and many other sellers weren't necessarily adding tracking by default. The founder wanted to build a platform that did it all in a streamlined fashion, making the default the best user experience. Sellers have only a 7% fee. Buyers have a small transaction fee and only pay $1 for shipping, instead of up to $5 on ebay with no added value.
CardStream's answer
Aside from the answers in "Why should a person choose CardStream over its competitors?", it's definitely that the seller sees the lowest fees of all the TCG apps at 7% (half of ebay's, nearly half of TCGplayer, and guess what - most LGS's will give you only 70% of your card's value, and CardKingdom will only give you 58% of your card's value!).
Beyond that - features like being able to sell at MP: Let's say you go to sell Ouroboroid today and it's value at $20, but no one buys it. But tomorrow it's suddenly worth $30 and a buyer comes along and wants to buy it - your sale will go through at $30, not $20! NO OTHER APP DOES THAT. No other market place let's you sell at market price, you have to keep up on the prices and edit them. With CardStream, it's built in.
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Magic: The Gathering - The classic card-trading strategy game brought to the PC.
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