Nexarchos — Secure offline hardware wallets
Non-custodial cold storage devices designed to protect your crypto private keys without any online access or financial services.
No internet connection or remote services
100%
Offline cold storage —
Private keys never leave the device. No internet, no online exposure — complete offline protection.
Private keys never leave the device. No internet, no online exposure — complete offline protection.
/01
PIN & recovery protection
Access remains secure even if your device is lost. PIN protection and seed phrase backup included.
/02
Open-source firmware
Transparent, auditable, and fully verifiable code. Security you can inspect and trust.
/03
Multi-chain support
Supports major assets like BTC, ETH, and NFTs. Offline-first, multi-asset support with no third-party integration.
/04
OLEXIFY One
Simple and secure offline storage Ideal for beginners looking to generate and protect their seed phrases. Never connects to the internet. Does not support trading or custodial services
Сatalog
OLEXIFY Air
Wireless, air-gapped hardware wallet. Provides isolated key storage via QR/Bluetooth communication.
Designed to keep private keys offline at all times.
Designed to keep private keys offline at all times.
Tech One
Fully offline device to securely store your private keys.
No internet access, no trading capabilities.
Designed to be easy to initialize and use out-of-the-box.
No internet access, no trading capabilities.
Designed to be easy to initialize and use out-of-the-box.
Tech Air
Our most portable offline wallet.
No network exposure, Bluetooth used only for air-gapped data transfer.
No trading, exchange, or financial services supported.
No network exposure, Bluetooth used only for air-gapped data transfer.
No trading, exchange, or financial services supported.
Advantages
No internet connection or remote services
Set up your device
You’re the only one with access. No third parties. No custody. Just you and your keys.
Backup securely
Backup securely
Securely initialize your hardware wallet and generate private keys completely offline.
Securely initialize your hardware wallet and generate private keys completely offline.
Full control, always
Write down your recovery phrase on paper or use a metal backup — never store it online.
Sign transactions offline
Approve transactions securely using your device — without exposing private keys to the internet.
— is a standalone, offline-only hardware wallet.
It does not provide access to online platforms, exchanges, or custodial services.
It does not provide access to online platforms, exchanges, or custodial services.
— Private keys never leave the device
— Not intended for buying, selling, exchanging, or managing assets online
— USB-C and air-gapped models available
— Compatible with Bitcoin (BTC), Ethereum (ETH), and major cryptocurrencies
Olexify
It does not provide any functionality for:
— Buying, selling, or exchanging cryptocurrency
— Custodial or staking services
-— Any form of financial intermediation
OLEXIFY ltd is a physical hardware device designed solely to store private keys offline.
Our solution complies fully with Google’s Financial Products and Services Policy. It does not require FCA registration, as no regulated financial activity is offered or facilitated.
Regulatory Compliance
Award-winning Honors
The most popular questions
A hardware wallet is a physical device that stores your private keys offline. It provides the highest level of protection against online threats such as hacking, phishing, and malware.
No. SynerFluentTech is a non-custodial hardware wallet. It does not offer any exchange or trading functionality.
Its sole purpose is to securely store and manage your private keys offline.
Its sole purpose is to securely store and manage your private keys offline.
Our devices support major cryptocurrencies including Bitcoin (BTC), Ethereum (ETH), most ERC-20 tokens, and NFTs.
Multi-chain compatibility extends to other crypto assets.
Multi-chain compatibility extends to other crypto assets.
You can restore access using your recovery seed phrase created during setup. Always store your seed phrase securely and offline. Even if the device is lost, your keys remain safe unless the seed phrase is compromised.
No. SynerFluentTech hardware wallets operate fully offline. You connect them to a device via USB-C
or Bluetooth, depending on the model, only to authorize transactions.
or Bluetooth, depending on the model, only to authorize transactions.
Yes, our firmware is open-source and publicly available for independent audit. We prioritize transparency and trust.
Yes, our wallets support all major platforms, including Windows, macOS, Linux, iOS, and Android through companion applications.
No. SynerFluentTech is a hardware wallet. It does not include any trading, purchasing, or exchange features.
No, SynerFluentTech is a physical device and does not rely on apps or cloud-based systems. It works completely offline.
No. We do not manage or store any funds or assets for users.
Nexarchos — Secure offline hardware wallets
Non-custodial cold storage devices designed to protect your crypto private keys without any online access or financial services.
No internet connection or remote services
Feedback from our customers
- Jonathan M.Crypto Investor (Edinburgh, UK)Great service, solid hardware, and easy-to-follow guides. I’ve been using it for a couple of weeks and everything runs smooth. Love the fact that it’s a UK-based company — inspires more trust than random overseas brands.
- Mark RidleyWeb3 Consultant (London, UK)What I like most is that the product does exactly what it should — securely stores private keys. No unnecessary features, no risks.
Straightforward integration with companion software.Solid first impression.” - Alexey P.Entrepreneur (Manchester, UK)OLEXIFY is on another level. After setting up the wallet, I finally feel confident that my private keys are safe.
Simple setup and intuitive interface — I recommend it to anyone who values full control.
Warranty:
All SYNERFLUENTTECH hardware wallets come with
a 12-month limited warranty covering manufacturing defects. Warranty does not cover damage from misuse, improper handling, or unauthorized modifications.
Firmware Updates: All models include lifetime firmware updates,
ensuring the highest level of ongoing protection against vulnerabilities.
Customer Support:
We offer dedicated customer service via:
Email: info@synerfluenttech.com
Knowledge Base & User Guides (coming soon)
Live Chat Support during UK business hours (Mon–Fri,
9am–5pm GMT)
Returns: Returns are accepted within 14 days
of purchase, provided the product is unopened and unused.
a 12-month limited warranty covering manufacturing defects. Warranty does not cover damage from misuse, improper handling, or unauthorized modifications.
Firmware Updates: All models include lifetime firmware updates,
ensuring the highest level of ongoing protection against vulnerabilities.
Customer Support:
We offer dedicated customer service via:
Email: info@synerfluenttech.com
Knowledge Base & User Guides (coming soon)
Live Chat Support during UK business hours (Mon–Fri,
9am–5pm GMT)
Returns: Returns are accepted within 14 days
of purchase, provided the product is unopened and unused.
Warranty & Support
SYNERFLUENTTECH LTD complies fully with Google’s Financial Products and Services Policy.
Our products are classified strictly as non-custodial hardware wallets, and do not provide: Crypto exchanges or brokerage services Asset management or custodial solutions Staking, lending, or yield products Buying, selling, or trading of cryptocurrencies Financial or investment advice We do not operate as a financial institution, exchange,
or wallet service provider.
Our devices are offline security tools only, designed to store private keys.
All operations related to cryptocurrencies —
such as transfers or conversions — must be performed through third-party services that users may connect to separately at their own discretion.
Our products are classified strictly as non-custodial hardware wallets, and do not provide: Crypto exchanges or brokerage services Asset management or custodial solutions Staking, lending, or yield products Buying, selling, or trading of cryptocurrencies Financial or investment advice We do not operate as a financial institution, exchange,
or wallet service provider.
Our devices are offline security tools only, designed to store private keys.
All operations related to cryptocurrencies —
such as transfers or conversions — must be performed through third-party services that users may connect to separately at their own discretion.
Compliance & Legal
Jurisdiction
SYNERFLUENTTECH LTD is a UK-registered company and operates in full compliance with applicable data protection and consumer safety standards.
Legal information is available in our [Privacy Policy], [Terms of Use], and [Cookie Notice].
Legal information is available in our [Privacy Policy], [Terms of Use], and [Cookie Notice].
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