21bitcoin

Bitcoin-only European app for buying, selling, saving, receiving, and sending bitcoin, with custodial storage or automatic withdrawals to a personal wallet.

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Features

Instant Bitcoin purchases
Savings plan
Limit orders
Custody or personal-wallet withdrawal
Euro account

About

21bitcoin is a retail Bitcoin platform operated by FIOR Digital GmbH. Its app offers instant and recurring purchases, limit orders, euro deposits, custody, and withdrawals to a user's own wallet. The company states it is authorized as a MiCA crypto-asset service provider by Austria's FMA.

Product facts

Awaiting sources for: custody, platforms, lightning, availability.

Facts verified: Not yet verified

No evidence linked.

Networks & use cases

Use cases

Payments/Commerce Wallets

Networks

Bitcoin L1

Layers Bitcoin L1

Settle order · L1 → Lightning → Sidechains → Rollups → Meta → Off-chain

Listing details

Listing updated: Sep 13, 2026
Status: live
Repository: Not linked
Website: 21bitcoin.app

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