Bank28 Get the app
Non-custodial · MiCA-aware · Audited

Banking,
but yours.

Banking that fits in your pocket and answers to no one but you. Hold your keys. Hold your assets. Spend any crypto, anywhere Visa is accepted.

Your keys, your coins
28
The number

Twenty-eight.
The number of wealth.

Across traditions, twenty-eight signals completion and abundance — the second perfect number, the lunar cycle, the count that closes a circle.

We chose it because it's a quiet promise: the app you keep your money in should compound it, not extract from it.

28
Currencies
8
Chains
0
Custodians
What's inside

Eight chains.
One wallet. Your keys.

Hold what you trust. Send what fits the corridor. We support the chains people actually use — not a long tail of dead chains no one settles on.

BTC
Bitcoin · Bitcoin
ETH
Ethereum · Ethereum
USDT
Tether · Ethereum
USDT
Tether · Tron
USDC
USD Coin · Ethereum
SOL
Solana · Solana
TRX
Tron · Tron
AERE
AERE · AERE

Bank28 is non-custodial. Your seed phrase generates the private keys for every chain on this list — locally, on your device, never on our servers.

What's inside

One app. Three primitives. No surprises.

Wallet

Hold BTC, ETH, USDT, USDC, SOL, TRX, and AERE — non-custodial. Your seed phrase never leaves your device.

Send

Send to any Bank28 user instantly, or to 28 currencies across 60+ countries. See the real cost before you send.

Card

Order a Visa card backed by your crypto. Tap to pay anywhere Visa is accepted. Freeze it in one tap if you lose it.

How the card works

The crypto-to-fiat moment
happens at the swipe.

No pre-funding. No "load to card." Your money lives in your wallet until you spend it — we just handle the last millisecond of the transaction.

01

Hold USDT

Your wallet keeps a balance in USDT, USDC, BTC — whatever you trust. No top-up, no float.

02

Tap at checkout

Use the Bank28 Visa anywhere contactless is accepted. 100M+ merchants, no extra steps.

03

Convert at swipe

At the exact moment of payment, we convert at the mid-market rate. No spread surprises.

04

Merchant gets EUR

Merchant settles in their local currency. You see the crypto debit in your wallet, instantly.

Worked example

You tap at Carrefour for €50.
~54 USDT leaves your wallet. Cashier sees €50. Done in ~700ms.

0%
FX spread
700ms
Settle time
€0
Card fee
Bank28 •••• 1643 LIVIU GOBAN VISA
The card

Spend any crypto.
Anywhere Visa works.

Order a Bank28 Visa in 60 seconds. We convert at the point of sale — you spend USDT, the merchant receives EUR. Works with Apple Wallet. Freeze it in one tap.

  • Tap to pay
    Anywhere contactless Visa is accepted — 100M+ merchants worldwide.
  • Real-time conversion
    Pay in USDT, USDC, BTC, or ETH. We settle in fiat at the swipe.
  • Freeze instantly
    One tap to lock the card. Unlock the same way.
Non-custodial by design

Your keys.
Your money.
Your call.

Bank28 generates your seed phrase on your phone, encrypts it with your device's secure enclave, and never sends it anywhere. We can't freeze your funds. We can't see your balance. We can't lose your money in a bankruptcy — because we never had it.

  • Seed phrase generated on-device, encrypted by Face ID / fingerprint.
  • Open-source smart contracts, public bug bounty.
  • MiCA-aware — designed for the EU regulatory framework.
Your device Seed lives here. Always. No server custody No exchange custody
Beyond the wallet

More than a bank.
Built for the rest of life.

Travel, family, learning, climate. The things money actually touches. Inside one app you already trust to hold it.

Eco-tracked spending

Every card swipe comes with a carbon footprint estimate. Offset it in one tap with verified credits.

Junior accounts

Bank28 Junior — a guided wallet for kids 6 and up. Parent approval, spending limits, lessons built in.

Travel + flights

Book flights inside the app. Earn AERE credits when you spend abroad on your Bank28 card.

Learn-to-earn

Short lessons on stablecoins, custody, security. Pass the quiz, earn AERE in your wallet.

Social money

Send to friends with a tap. Splits, requests, group savings goals — without leaving the app.

Rewards + referrals

Earn up to 40% on what your friends spend. Plus AERE drops at milestones — no points to redeem.

Built for

Whoever your money
works for.

For travelers
One card. Sixty countries. No FX gotcha.

Spend any crypto at the mid-market rate, anywhere Visa is accepted. Pay in 28 currencies without converting first.

For freelancers
Get paid in stablecoins. Spend in EUR.

Receive USDT or USDC from anywhere on Earth in seconds. Hold it. Spend it. No bank wires, no chargebacks, no minimums.

For families
A wallet for the whole household.

Junior accounts for kids 6+. Eco-tracked spending. Group savings goals. Allowance on a schedule. Lessons that pay.

For crypto-natives
Self-custody, finally on-rails.

Eight chains, audited contracts, your seed on your device. Plus a Visa card that connects it all to the off-chain world — no bridge required.

Borderless by default

Send to 28 currencies.
In 60+ countries.

One stack. Crypto rails for speed, SEPA and SWIFT corridors for delivery. You see the cost before you send — no surprise at checkout.

28
Fiat currencies
60+
Countries
8
Crypto chains
The math

Send €1,000 from Berlin to Bucharest.

Cost in fees plus time on the wire. We did the math so you don't have to.

Provider
Fee
Arrival
Bank28 YOU
Crypto rails
€1.50
~30 sec
Wise
SEPA + FX
€5.20
~1 day
Revolut
Free tier limit
€7.00
~2 hours
Western Union
Cash pickup
€25.00
~2 days
Your bank
SWIFT + spread
€40.00
~3 days

Indicative pricing for a Berlin to Bucharest €1,000 transfer, May 2026. Bank28's figure is the USDT-on-Tron swap fee plus the off-ramp partner's flat fee. Competitor figures sourced from public fee schedules.

Security

Trust, the verifiable kind.

We don't ask you to trust us. We give you the tools to check.

Audited contracts

Cyfrin CodeHawks competition and a Hacken short review on the AereCardEscrow contract.

Open-source

Smart contracts and the wallet client are public. Read every line. Verify the build.

Bug bounty

Up to €25k per critical finding. Report directly via Immunefi or our security email.

MiCA-aware

Designed under the EU MiCA framework. Travel Rule via Notabene. KYC by Didit (Cyprus).

Mainnet live · Chain ID 2800
AERE Network

A new standard
for how money moves.

Behind Bank28 is AERE Network — an EVM-compatible Layer-1 blockchain engineered for everyday payments, not speculation. Multi-layer sharding pushes the network past 273,000 transactions per second. QBFT consensus delivers single-block finality in one second. Card swipes settle before the terminal beeps.

We didn't pick an existing chain — none were ready for what banking demands. So we built one.

273k+
TPS
1s
Finality
2.8B
Max supply
17
Contracts live
QBFT consensus
Byzantine fault-tolerant. One-block finality. Tolerates ⌊(n−1)/3⌋ malicious validators.
EVM-compatible
Solidity 0.8.19. MetaMask, Hardhat, Foundry, ethers, viem — every Ethereum tool, zero changes.
Multi-layer scaling
Base + ZK rollups + Lightning channels + plasma. 273,044 TPS without compromise.
Deflationary by design
Up to 37.5% of fees burned. Halving every 125M blocks. Capped at 2.8B AERE forever.
explorer.aere.network
Lightning Network live
8 ZK rollups online
AERE Network symbol
Roadmap

Where we're going.
Not a vision deck. Dates.

  1. Q3 2026 Now

    v1 launch

    Non-custodial wallet across 8 chains. Send to 28 currencies. Visa card on the waitlist.

  2. Q4 2026 Next

    Card live

    Bank28 Visa cards ship to verified users. Apple Wallet and Google Pay. Audits by Cyfrin and Hacken complete.

  3. Q1 2027 Next

    SEPA IBANs

    Personal IBANs in EUR. Receive your salary directly. Schedule rent. Pay bills.

  4. Q2 2027 Planned

    USD ACH + more chains

    USD ACH rails open. New chains: Polygon, Base, Arbitrum. Junior accounts go live.

  5. 2028 Planned

    Open ecosystem

    Public SDK. Bank28 inside other apps. Travel rewards expand. Eco offsets at scale.

Get Bank28.

Free to download. No subscription. No custodian.