We build software that keeps your data yours
Union Everrich is a Hong Kong technology company shipping privacy-first consumer products — an encrypted messenger, a self-custody crypto wallet, and the cryptography and AI layer that both run on.
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- Products in market
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- Platforms supported
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- User data sold. Ever.
Three products, one set of principles
A messenger, a wallet, and the applied-AI platform they share. Different surfaces, identical rule: we never hold what we do not need.
Notelet
Our flagship product: a private messenger for calls, chats and files, with an AI assistant that only ever runs when you ask it to.
- End-to-end encryption on every message, call and attachment
- AI summaries, translation and reply drafting — on request, never in the background
- One encrypted account across iOS, Android, macOS, Windows and Linux
- Encrypted backups, disappearing messages and large private groups
Wallet
A self-custody wallet for digital assets. Private keys are generated and stored on your device — we never hold your funds and never see your recovery phrase.
- Non-custodial by design: keys stay in the device's secure hardware
- Multi-chain accounts with clear, human-readable transaction previews
- Encrypted recovery you control, protected by your own passphrase
- Pairs with Notelet so transfers happen inside an encrypted conversation
AI Layer
The assistant platform our apps are built on: request-scoped inference, strict data minimisation, and no training on customer content.
- Request-scoped: nothing is processed unless a user explicitly triggers it
- Data minimisation enforced at the API boundary, not by policy alone
- Customer content is never used to train models
- Runs behind our own gateway, so product teams ship without leaking data
One foundation under every product
Messaging and wallets have the same hard problem: keys, and who gets to hold them. We solved it once, properly, and reuse it everywhere.
The relay moves sealed envelopes. Keys never leave the endpoints.
Keys born on the device
Identity keys and wallet keys are generated in the device's secure hardware and never leave it in plaintext.
Servers that relay, not read
Our infrastructure moves sealed payloads. Metadata is minimised by design — there is no plaintext copy to subpoena, sell or leak.
Recovery without a backdoor
Encrypted backups are unlocked by a secret only the user holds, verified inside hardware enclaves. Convenience without a master key.
AI that asks first
Assistance is explicit and scoped to a single request. No silent uploads, no background profiling, no training on your content.
A small team with an unfashionable opinion
Union Everrich Inc Limited is an independent technology company registered in Hong Kong, working at the intersection of applied AI and applied cryptography. Our engineers come from messaging infrastructure, secure-enclave systems, blockchain wallets and mobile platform work.
The unfashionable opinion: software should make people faster without making them the product. So we ship encryption first, intelligence second, and advertising never — across messaging, digital assets and everything we build next.
Encrypt by default
Security that needs a settings toggle is not security.
Hold nothing we don't need
No custody of funds, no plaintext of conversations, no data brokers.
Ship everywhere
Private tools only work when everyone you deal with can actually install them.
Work with Union Everrich
Press, partnerships, security reports or a question about one of our products — write to us and a human will answer.