SeedSignerSeedSigner (DIY) · Hardware wallet
No manufacturer price
checked 2026-11-13List price
No manufacturer price sourcechecked 2026-11-13Build-it-yourself: the project lists parts for usually under $50; there is no manufacturer price.
Coins and tokens
Bitcoin only sourcechecked 2026-11-13
Chains named by the maker
Bitcoin-only edition
Yes sourcechecked 2026-11-13
Firmware source
Open source · MIT sourcechecked 2026-11-13
Reproducible build
not verified
Secure element
No sourcechecked 2026-11-13Stateless: seeds are held in memory only while powered and are not stored on the device.
Connections
QR sourcechecked 2026-11-13
Air-gapped signing
Yes sourcechecked 2026-11-13Signs by QR code or microSD, without a cable or radio link.
Screen
not verified
Backup
not verified
Passphrase
not verified
Company location
not verified
Latest firmware
0.8.7
Released 8 Jul 2026 · 128 days ago
Checked by hand on 2026-11-13. Source · all versions
Fact scores
Sums of the facts on this page with fixed weights — formula. Not a review.
Security facts
45
| Firmware source published (open 30, restricted licence 20, partly 10) | 30 / 30 |
| Reproducible build documented | not verified · 0 / 10 |
| Secure element chip | 0 / 20 |
| Secure element certification stated (EAL5+ or higher) | 0 / 10 |
| Can sign without cable or radio (QR or microSD) | 10 / 10 |
| Bitcoin-only firmware or edition available | 5 / 5 |
| Passphrase supported | not verified · 0 / 5 |
| Multi-share (Shamir) backup | not verified · 0 / 10 |
Ease facts
10
| Touchscreen | not verified · 0 / 30 |
| Screen of 2 inches or more | not verified · 0 / 15 |
| Wireless link to a phone (Bluetooth or NFC) | 0 / 25 |
| USB data connection | 0 / 10 |
| QR code signing | 10 / 10 |
| microSD slot | 0 / 10 |
Value (points per $100)
no USD list priceNot affiliated with SeedSigner (DIY). Values can change after the check date — confirm on the manufacturer's page before buying.