r/coldcard is a subreddit with 6k members. The most common kinds of discussions are pain & anger and advice requests, and the community frequently discusses coldcard, wallet, crypto, security, and seed.
Official COLDCARD subreddit by Coinkite. Help with COLDCARD Q, Mk5 and Mk4; Bitcoin self-custody, air-gapped signing, PSBTs, multisig, NFC, Seed Vault, BIP-85, firmware, and security. Never share a seed phrase, private key, backup, PIN, passphrase, order details, or personal information. Staff will never contact you first or ask for secrets.
Popular Themes in r/coldcard
#1
Pain & Anger
: "Dangerous Issue with Coldcard Q Export and Sparrow Wallet Compatibility"
11 posts
#2
Advice Requests
: "Considering getting a Coldcard, is it alot better than Trezor?"
9 posts
#3
Solution Requests
: "Is the danger zone/destroy seed the best way to test wallet?"
7 posts
#4
Money Talk
: "Black Friday Sale (25% Off with Bitcoin)"
4 posts
#5
Ideas
: "Designed and 3D printed an insert to store my Q in this $5 waterproof phone case. With battery storage, sd card storage and space underneath for a silica packet or two."
1 post
#6
News
: "Coldcard Delta PIN Bitcoin Private Key Recovery Vulnerability - Update Your Firmware"
1 post
Popular Topics in r/coldcard
#1
Coldcard
: "Coldcard Q showed “Danger/Caution” and “Bricked” on boot. Packaging looked tampered. Support says it’s fine… is this normal?"
172 posts
#2
Wallet
: "Sparrow + Coldcard (air-gapped) — worried about Wallet settings"
54 posts
#3
Crypto
: "Sparrow + Coldcard (air-gapped) — worried about wallet settings"
37 posts
#4
Security
: "PSA : Beware of this malicious app on the Apple App Store"
28 posts
#5
Seed
: "Never ever add your Seed words in a website guys! 🚩🚩🚩"
21 posts
#6
Q
: "Coldcard Q factory firmware"
13 posts
#7
Passphrase
: "Q : Passphrase Question"
13 posts
#8
Cold Card
13 posts
#9
Sparrow
: "Can you use multiple Coldcards with 1 Sparrow wallet?"
12 posts
#10
Multisig
: "BIP85 and passphrases in Multisig?"
12 posts
Flair Used in r/coldcard
#1
Support
: "Coldcard Q showed “Danger/Caution” and “Bricked” on boot. Packaging looked tampered. Support says it’s fine… is this normal?"
14 posts
#2
Wall of Love
: "no shit coin"
4 posts
#3
Feature request
: "Key teleport function"
3 posts
#4
Tutorials
: "Thinking about buying one."
1 post
#5
Calculator Crew Recommendations :upvote:
: "Cold card for someone with only an iPhone?"
1 post
#6
MYSTERY SOLVED 👍
: "My Coldcard Q no longer shows “Consolidating within wallet” when doing a UTXO consolidation"
1 post
Member Growth in r/coldcard
Yearly
+1k members(24.7%)
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About
GummySearch helps people research Reddit communities by organizing activity, growth, themes, and post-level signals into one place.
This page gives a focused view of r/coldcard, including current member size, discussion patterns, product reviews, and related communities to explore.
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Last updated: July 23, 2026