Grimm App

Focused on privacy, security and usability for day-to-day Bitcoin transactions.Start using Grimm AppExperience true Bitcoin sovereignty with a fully self-custodial Lightning wallet powered by Breez SDK.Send and receive Bitcoin in seconds with Lightning. No channel management, no complexity, just fast, borderless payments.You control your keys, you control your Bitcoin. Enjoy complete financial independence with a non-custodial design.Your data, your business. Enjoy private transactions and local wallet management without third-party tracking.Let the wallet automatically select the best route and fee for your Lightning transactions, efficient and fair every time.Secure your wallet with encrypted local backups. Restore anytime, anywhere, without compromising your keys.Built on the trusted Breez infrastructure for seamless Lightning integration, reliability, and scalability.Everything you need to know about Grimm AppBitcoin is a decentralized digital currency that allows peer-to-peer payments without needing a central bank or intermediary. Transactions are recorded on a public ledger called the blockchain and can be used to send, store, or grow value globally.The Lightning Network is a layer-2 solution built on top of Bitcoin, enabling instant and low-cost transactions. It’s designed for micro-payments and fast, everyday Bitcoin transfers.A self-custodial wallet means you own and control your private keys and therefore your Bitcoin. Grimm App never has access to your funds; you are fully in charge of your money.We build tools and infrastructure that empower you to hold and use Bitcoin freely.Making Bitcoin accessible to everyone© 2026 Grimm Technologies. All rights reserved.