Mycelium Wallet: keys, security, fees and reviews
Software wallet
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Key facts
- Wallet type
- Software wallet
- Who holds the keys
- the user (self-custody)
- Developer
- MRD X-Change GmbH
- Platforms
- iOS, Android
- Open source
- yes
- Official site
- wallet.mycelium.com
Checked on 2026-10-27 against the official site, docs and app-store pages.
What is Mycelium Wallet
Mycelium Bitcoin Wallet is a self-custodial mobile wallet for Android, built by the Mycelium team and one of the oldest Bitcoin wallets still in use (its source repository dates from June 2013). It focuses on Bitcoin, with Ethereum and ERC-20 token support, cold-storage and hardware-wallet features.
Who holds the keys
| Parameter | Details |
|---|---|
| Key control | Self-custody: Mycelium does not hold user funds and acts only as a relay to the Bitcoin network. |
| Recovery | Accounts are restored from the user's backup (master seed); losing the backup means losing the funds. |
| Account model | HD spending accounts and single-address saving accounts, with a separate backup for single-address accounts; no ID required |
Features and supported networks
| Parameter | Details |
|---|---|
| Platforms | Android (Google Play, direct APK download and Obtainium) |
| Supported networks | Bitcoin (native SegWit and P2SH), Ethereum and selected ERC-20 tokens; FIO Network |
| Hardware wallet support | Trezor, Ledger and KeepKey |
| Coin control | Unspent outputs shown per account; fee bumping (child-pays-for-parent); paper-wallet and watch-only cold storage |
| Privacy (CoinJoin, Tor) | Optional Tor connection to hide IP address; third-party services can be turned off |
| Swaps | In-app exchange and trading |
Security and audits
- Source code is published on GitHub; the main app module (mbw) is under the Microsoft Reference Source License (MS-RSL) and the libraries under Apache 2.0.
- The vendor describes the Android app as reproducible, so published builds can be checked against the source; all releases are signed with the same release key.
- The app offers PIN protection with variable keyboard layouts against pattern sniffing.
Fees
| Parameter | Details |
|---|---|
| Wallet | Free, no subscription fees; the user chooses the Bitcoin miner fee for each payment |
History
| Date | Event |
|---|---|
| 2008 | Mycelium began as a team of hardware engineers working on a mesh-networking project. |
| June 2013 | The wallet-android source repository was created on GitHub. |
| 2016 | Mycelium distributed Mycelium tokens representing 5% stock appreciation rights in the wallet project. |
Risks and caveats
- Losing the backup means losing the funds; there is no one to recover them.
- The user sets the miner fee; too low a fee delays payments.
- Mycelium says it runs no social-media accounts; any account claiming to represent it is a scam.
About the developer
- Developer
- Mycelium, which also makes Mycelium Entropy and the Gear payment processor
- Founded
- 2008 (team origin)
Official links
- Website: wallet.mycelium.com
- Download: play.google.com/store/apps/details?id=com.mycelium.wallet
- Source code: github.com/mycelium-com/wallet-android
Questions and answers
Is Mycelium Wallet self-custodial?
Yes. Mycelium never touches user funds; keys stay on the phone and the user's backup is the only way to restore them.
Is Mycelium Wallet open source?
The source is on GitHub; the main app module is under the Microsoft Reference Source License and the libraries under Apache 2.0.
Which coins does Mycelium Wallet support?
Bitcoin, Ethereum and selected ERC-20 tokens, plus FIO Network features.
Does Mycelium Wallet charge fees?
No wallet or subscription fees; the user sets the Bitcoin miner fee for each payment.
Who makes Mycelium Wallet?
Mycelium, a team that started in 2008 and also makes Mycelium Entropy and Gear.
Sources
- wallet.mycelium.com
- apps.apple.com
- github.com
- Mycelium — Mycelium Token
- Mycelium GitHub — wallet-android README
- Mycelium GitHub — wallet-android LICENSE
- GitHub API — mycelium-com/wallet-android
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