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AlerTCG for Android: look up any card, cert or wallet, track graded cards against the waterline, alerts on the phone, and the morning tape.
What graded trading cards sell for, slab by slab, with alerts when they move.
AlerTCG reads what any card is worth, what every tokenized copy of a graded card sells for, and every tokenized slab a wallet holds — then tells you when something moves, and what sold on the vaults each morning. ONE PROMPT, THREE KINDS OF INPUT Type a card name, pick the card, then choose raw or a grade — PSA 10, CGC 9.5 — from buttons that show how many copies the index has seen, and save it. Raw prices come from Scryfall, pokemontcg.io (TCGdex when it is down) and Cardsmiths; graded prices are the sold median across every tokenized copy of that card at that grade, with asks shown separately and named as asks. Type a grading cert and see what that exact slab has done on chain — listed, sold, where, when. Type a wallet address and see every tokenized slab it holds on Courtyard (Polygon) or Collector Crypt (Solana), what each is asked at, what it last sold for, and what other copies go for. DID THE PLASTIC PAY FOR ITSELF? A slab is worth what a raw copy is worth plus whatever the grade added. Grading cost about $25 when most slabs were made and about $80 now. AlerTCG draws the waterline: the raw price, the level the grade had to reach at the fee you paid and at today's fee, and where graded copies actually sit. Two verdicts, always — because the card did not change, the fee did. EVERY MORNING, THE TAPE How many copies changed hands on Courtyard and Collector Crypt yesterday, for how much, the biggest fill, the steepest discount against a card's own thirty-day median, and the rising star. Sales only, never asks. It opens the app, and it can arrive as a notification around 9:00 that names the day it describes. ALERTS, ON YOUR PHONE Track wallets, slabs and cards. When Android allows, the app re-reads them in the background and tells you when a card arrives in or leaves a tracked wallet, when a tracked slab is listed or sold or crosses the waterline, or when a tracked price moves past your threshold. No push service and no account: the check runs on the phone, and the Vault shows everything that changed since you last looked whether or not a notification arrived. Android decides when background checks run, so they come every few hours on a phone where the app is opened now and then. Long-press the app icon to jump straight to Look up, the Vault or Alerts. HONEST ABOUT WHAT IT DOES NOT KNOW A card with no price shows no price, never a zero. A slab the index has not seen says so in the server's own words. A figure that could not be refreshed shows the day it was read. Every figure is reference data, not an appraisal. PRIVATE BY DESIGN No account, no analytics, no ads, no tracking. What you track stays on your phone. If you choose, a pairing code from retcg.xyz keeps your card list in step with the website. Built by Shyguy LLC. AlerTCG is not affiliated with PSA, CGC, Beckett, SGC, TAG, Courtyard, Collector Crypt or any card publisher.