Billfodl vs Cryptosteel Capsule Solo


Key differences
- Both cost $99, but Billfodl is lighter and more compact, while the Capsule Solo is heavier and more rugged.
- Billfodl is optimized for 12-24 word BIP39 phrases, while the Capsule supports multiple formats including BIP39, SLIP39, Monero, WIF, and even custom keys.
- Both use tiles, but Billfodl uses a flat slide-in system, while the Capsule stacks tiles into a cylindrical core—some may find Billfodl's layout easier to read and manage.
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Price

$99

$99 USD
Technical Specifications
Dimensions

100 x 60 x 6 mm

255x185x25 mm
Weight

170g

515g
Materials

316 marine-grade stainless steel

The Capsule shell is AISI 303 stainless steel. The core, separators, fasteners and character tiles made of AISI 304 stainless steel.
Box Includes

Billfodl steel wallet, Instruction manual

- Cryptosteel Capsule container
- 1 Tile set (>800 tiles)
- 25 separators
- 4 fasteners
- Packaging for storage
- Instructions
- Cryptosteel privacy guide
Usage
Entry Method

Slide-in stainless steel tiles

Steel character tiles
Error Handling

Mistake-friendly → easy to swap tiles, no permanent damage

Temporary → simply remove the tile and fix it
Tools Required

Tool-free, no hammering required

None
Reusability

Fully reusable (swap tiles anytime)

Reusable → tiles can be removed and replaced
Durability
Fire Resistance

Up to 1,200°C (2,192°F)

Up to 1400 °C (2500 °F)
Water & Corrosion Resistance

Fully waterproof & corrosion resistant

Shockproof. Waterproof. Stainless.
Real World Proofs

Billfodl survived a real fire, here is a video of the guy whose house burned down.

★★★★★
Kevin M. (Jan 2022)
'The quality of the product itself was outstanding, came with an entire set of characters to use for any kind of password/s you may want to protect. There was even a poster explaining different levels of information security/protection methods. Overall a worthwhile buy if you have enough value you need to protect.'
Compatibility
Backup Types

BIP39 seed phrases

- BIP39 (12-word or abbreviated 24-word recovery seeds)
- Shamir Backup SLIP39 (abrv. 20-word recovery seeds)
- BIP32 roots
- WIF private keys
- Monero mnemonic seeds (abrv. 25-word recovery seeds)
Seed Compatibility

BIP39 (12, 18, 24-word phrases)

- BIP39 (12, 18, 24-word phrases)
- Shamir Backup SLIP39 (20-word phrases)
- BIP32 root keys
- WIF private keys
- Monero mnemonic seeds (25-word phrases)
- Hexadecimal strings up to 123 characters
- ASCII strings up to 55 characters
Wallet Compatibility

All wallets using BIP39

Works with all wallets
Security Features
Tamper Evidence

None included, can buy tamper-evident stickers separately

DIY fireproof barrier seal, capsule identification possible
Company Details
Manufacturer

PrivacyPros

Cryptosteel
Founded

2017

2013