Compare providers
Side-by-side comparison for any two listings. Pick by provider id (e.g. mullvad, ivpn, feather). Updates live as curators re-grade.
| Cryptosteel Capsule | Threema | |
|---|---|---|
| Category | tools | tools |
| Subcategory | Backup | Messaging |
| Grade | A | B |
| Editor's Pick | — | — |
| Tagline | Steel seed-phrase backup. Fire/water/EMP-resistant. One-time purchase. | Swiss paid one-time messenger. Phone-number optional, anonymous IDs, no metadata. |
| Fees | €89 one-time · BTC accepted · physical product | $5 one-time · Swiss · audited · no phone required |
| KYC posture | light_kyc | light_kyc |
| Highlight tags | HARDWAREBACKUPSTEEL | PAIDAUDITEDSWISS |
| Feature tags | non_custodial | non_custodialaudited |
| Web | https://cryptosteel.com | https://threema.ch |
| Tor | — | — |
| Last verified | 2026-05-13 | 2026-05-13 |