Theya
Theya Inc.
Theya is a self-custody Bitcoin wallet centred on multisig, available on iOS and via Web (the Android app is announced as "coming soon"). Signing keys can live in the iPhone's secure enclave or in any external hardware wallet, and the multi-signature vaults support single- or multi-party access with role-based access controls. Theya also offers the "Theya Key", a hardware-enabled key the company describes as built on HSM-based infrastructure with backups, aimed at those who want to delegate secure management of one of the keys. It emphasises a passwordless experience (passkeys and fingerprints), offline vault access, real-time notifications and compromised-device reporting. Note: at the time of verification the site does not state that the code is open-source.
Data & conditions
| Fund custody | Self-custody (funds in your control) |
|---|---|
| Type | Software (hot wallet) |
| Source code | Closed-source |
| Recovery | Multisig (secure enclave iPhone o hardware wallet esterno) + opzione Theya Key con backup HSM |
| Bitcoin-only | Yes |
| Supported chains | Bitcoin |
| Built-in swap | No |
| Built-in staking | No |
| dApp browser | No |
| WalletConnect | No |
| Hardware wallet support | Yes |
| Segment | B2C |
| MiCA / License status | Nessuna (wallet self-custody non-custodial) |
Strengths
- Accessible multisig on iPhone: keys can live in the secure enclave or on any external hardware wallet; multi-party vaults with role-based controls; "Theya Key" option with HSM-backed backups; passwordless experience.
- Self-custody: funds stay in your wallet — the platform cannot touch them.
- No KYC: usable without identity verification.
Weaknesses
- The code is not stated to be open-source on the site: independent verifiability is therefore limited, no small drawback for a self-custody wallet; the native Android app is not yet available (iOS and Web only); pricing is not published.
- Closed source: no way to verify what it does with wallet and data.
Verdict
Score 4.1/5, solid profile. In its favour: accessible multisig on iPhone: keys can live in the secure enclave or on any external hardware wallet; multi-party vaults with role-based controls; "Theya Key" option with HSM-backed backups; passwordless experience. The trade-off to weigh: the code is not stated to be open-source on the site: independent verifiability is therefore limited, no small drawback for a self-custody wallet; the native Android app is not yet available (iOS and Web only); pricing is not published.
On the Sovereignty lens the score is 3.5/5 (solid): the strength is fund control (5.0/5), while trustless / auditability (0.0/5) is the weak link.
Promp's editorial rating based on real fees and net annual cost. Promp reviews third-party products independently.
"Sovereignty" rating: score computed on privacy/anonymity (30%), fund control (20%), censorship resistance (20%), trustless/auditability (20%) and costs (10%). Same data, different weights.
FAQ
Is Theya open-source?
At the time of verification (August 2026) the official site does not state that the code is open-source. We therefore do not classify it as open-source: for a self-custody wallet this reduces the ability to independently verify the code, something to keep in mind.
Where are the keys stored with Theya?
Theya is self-custody and multisig: signing keys can live in your iPhone's secure enclave or in an external hardware wallet. Vaults support single- or multi-party access, with role-based controls.
What is the "Theya Key"?
It is a hardware-enabled key that, according to Theya, relies on HSM-based infrastructure with backups. It is for those who want to delegate secure custody of one of the multisig keys without managing a hardware device themselves, while staying within a self-custody scheme.
Sources
- Official service page Piattaforme · Multisig · Secure enclave · Hardware wallet · +2 Data verified on Aug 3, 2026