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.
| Threema | Cryptosteel Capsule | |
|---|---|---|
| Category | tools | tools |
| Subcategory | Messaging | Backup |
| Grade | B | A |
| Editor's Pick | — | — |
| Tagline | Swiss paid one-time messenger. Phone-number optional, anonymous IDs, no metadata. | Steel seed-phrase backup. Fire/water/EMP-resistant. One-time purchase. |
| Fees | $5 one-time · Swiss · audited · no phone required | €89 one-time · BTC accepted · physical product |
| KYC posture | light_kyc | light_kyc |
| Highlight tags | PAIDAUDITEDSWISS | HARDWAREBACKUPSTEEL |
| Feature tags | non_custodialaudited | non_custodial |
| Web | https://threema.ch | https://cryptosteel.com |
| Tor | — | — |
| Last verified | 2026-05-13 | 2026-05-13 |