Open-source firmware not provable from an official source (classified as closed); connection type and corporate data (legal entity, headquarters) not confirmed on the site.
For this reason this service does not appear in our rankings, comparator or comparison pages: it will once its terms can be verified against a dated official document.
imKey Pro
imKey Limited
The imKey Pro is the hardware wallet tied to the imToken ecosystem, one of the most widely used mobile wallets in Asia. It costs $109.99 (~€100). Its strength is the Infineon SLE 78CLUFX5000PH secure element, Common Criteria EAL6+ certified and EMVCo-compliant (the same standard as payment cards), with offline private-key generation and storage. It is designed to work paired with the imToken app (and is Rabby-compatible), which handles signing and transfers; the connection goes through the companion app and is not air-gapped. It claims support for 12 main chains and over 5,000 tokens. ⚠️ The firmware does not appear to be published as open-source and some details (connection type, corporate data) are not confirmed on the official site: the card is therefore flagged as partial.
Data & conditions
| Fund custody | Self-custody (funds in your control) |
|---|---|
| Type | Hardware (cold storage) |
| Source code | Closed-source |
| Recovery | Seed phrase BIP-39; PIN con reset dopo 5 tentativi errati |
| Bitcoin-only | No |
| Supported chains | Bitcoin, Ethereum, ERC-20 |
| Price | €100 |
| Secure element | Yes |
| Air-gapped | No |
| Connectivity | USB-C |
| Built-in swap | No |
| Built-in staking | No |
| Segment | B2C |
| MiCA / License status | Nessuna (hardware wallet self-custody) |
Plans & pricing
Strengths
- Infineon EAL6+ EMVCo-compliant secure element with keys generated and stored offline; deep imToken integration and Rabby compatibility; affordable price (~€100); multi-chain support (12 mainchains, 5,000+ tokens).
- Self-custody: funds stay in your wallet — the platform cannot touch them.
- No KYC: usable without identity verification.
Weaknesses
- Firmware not published as open-source: its security model must be taken on trust; heavy reliance on the companion app (imToken ecosystem), not air-gapped; some technical and corporate details unconfirmed on the official site.
- Closed source: no way to verify what it does with wallet and data.
Verdict
Score 3.9/5, solid profile. In its favour: infineon EAL6+ EMVCo-compliant secure element with keys generated and stored offline; deep imToken integration and Rabby compatibility; affordable price (~€100); multi-chain support (12 mainchains, 5,000+ tokens). The trade-off to weigh: firmware not published as open-source: its security model must be taken on trust; heavy reliance on the companion app (imToken ecosystem), not air-gapped; some technical and corporate details unconfirmed on the official site.
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
How much does an imKey Pro cost?
The imKey Pro costs $109.99 (~€100) on the official store. The price is in US dollars; any duties, VAT and import fees depend on the delivery country.
What secure element does the imKey Pro use?
It carries an Infineon SLE 78CLUFX5000PH secure element, Common Criteria EAL6+ certified and compliant with the EMVCo payment-card standards. The private key is generated and stored offline in the secure chip.
Is the imKey Pro open source?
The firmware does not appear to be published as open-source on the official site: we therefore classify it as closed-source, pending proof otherwise. The device is designed for use with the imToken app and is Rabby-compatible.
Sources
- Official service page Prezzo usd · Secure element eal6 · Blockchain · Azienda Data verified on Aug 3, 2026