LOBSTR: keys, security, fees and reviews
Software wallet
In short
- Key control
- Keys are generated on the device and transactions are signed on the device; LOBSTR cannot move funds or see the keys.
- Fees
- Swaps: Stellar swaps: 0.5% to 1% built into the rate depending on asset category; 15% for assets flagged as scam; limit orders free.
- Risks and caveats
- Anyone who obtains the recovery phrase gets full control of the wallet; the vendor advises never storing it digitally.
- Checked
- 28 October 2026
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Key facts
- Wallet type
- Software wallet
- Who holds the keys
- the user (self-custody)
- Developer
- ULTRA STELLAR, LLC
- Platforms
- iOS, Android
- Official site
- lobstr.co
Key facts checked on 28 October 2026 against official sources.
What is LOBSTR
LOBSTR is a non-custodial wallet for the Stellar and XRP Ledger networks, available as iOS and Android apps and a web app. It is operated by the Estonian company Ultra Stellar OÜ, which is not affiliated with the Stellar Development Foundation. Companion products include LOBSTR Vault (multisig signer) and a browser signer extension.
Who holds the keys
| Parameter | Details |
|---|---|
| Key control | Keys are generated on the device and transactions are signed on the device; LOBSTR cannot move funds or see the keys. |
| Account model | A LOBSTR account (passkey in the mobile apps or email-based on the web) syncs an encrypted copy of the secret key and recovery phrase through LOBSTR's server. |
| Seed phrase | A 12- or 24-word recovery phrase; LOBSTR has no access to it. |
| Recovery | Wallets created before 1 September 2020 used an older server-side key storage; migration to on-device keys was required by 10 July 2026. |
Features and supported networks
| Parameter | Details |
|---|---|
| Platforms | iOS, Android and web; LOBSTR Vault app; Chrome signer extension. |
| Supported networks | Stellar and XRP Ledger, including stablecoins and tokenized assets on them. |
| Swaps | On-chain swaps on Stellar and the XRP Ledger, and cross-chain swaps through a NEAR Intents integration. |
| Buy / sell | Buy with card, bank transfer, Apple Pay or Google Pay through partners. |
| Multisig | LOBSTR Vault adds Stellar multisig; Vault keys stay on the device. |
Security and audits
- Secret key and recovery phrase are encrypted client-side (xsalsa20-poly1305) with a key derived from the user's password before the encrypted copy is stored on LOBSTR's server.
- Optional 2FA, PIN or biometric lock, passkey sign-in in the mobile apps, and mandatory email confirmation for logins from new IP addresses.
- LOBSTR Vault is open source under GPL-3.0; the main LOBSTR app's source code is not listed in the company's public GitHub repositories.
Fees
| Parameter | Details |
|---|---|
| Swaps | Stellar swaps: 0.5% to 1% built into the rate depending on asset category; 15% for assets flagged as scam; limit orders free. |
| Swaps | XRP Ledger swaps: 0.6% for curated assets including XRP, 1% for others. |
| Swaps | Swap fee discounts of 50% or 100% for holders of AQUA and ICE tokens in Silver or Gold loyalty tiers. |
History
| Date | Event |
|---|---|
| 27 November 2018 | LOBSTR Vault source repositories for iOS and Android published on GitHub. |
| 1 September 2020 | On-device key storage introduced for newly connected wallets. |
| 10 July 2026 | Deadline for migrating remaining wallets from the old server-side key storage. |
Risks and caveats
- Anyone who obtains the recovery phrase gets full control of the wallet; the vendor advises never storing it digitally.
- LOBSTR keeps an encrypted copy of the keys on its server for cross-device sync; security depends on the strength of the user's password.
- Swap fees are built into the exchange rate and can be changed by LOBSTR at any time.
About the developer
- Legal entity
- Ultra Stellar OÜ, a private limited company.
- Legal entity
- The terms of service are governed by Estonian law.
- Parent company
- Independent; not affiliated with the Stellar Development Foundation.
Official links
- Website: lobstr.co
- Support: lobstr.co/faq
- Security: lobstr.freshdesk.com/support/solutions/articles/151000169419-security-of-your-wallet-on-lobstr
- Source code: github.com/Lobstrco
- Website: lobstr.co/vault
Questions and answers
Is LOBSTR self-custodial?
Yes. Keys are generated and used on the device; LOBSTR stores only an encrypted copy for syncing and cannot access the keys or move funds.
Which networks does LOBSTR support?
Stellar and the XRP Ledger, with cross-chain swaps to other networks through NEAR Intents.
Is LOBSTR open source?
The LOBSTR Vault multisig app is open source under GPL-3.0; the main wallet app is not among the company's public GitHub repositories.
Does LOBSTR charge fees?
Swaps carry a fee of 0.5% to 1% built into the rate (15% for scam-flagged assets); limit orders are free.
Who makes LOBSTR?
Ultra Stellar OÜ, an independent company not affiliated with the Stellar Development Foundation.
Sources
- lobstr.co
- apps.apple.com
- LOBSTR — Terms of Service
- LOBSTR — Security of your wallet
- LOBSTR — What is a Recovery Phrase
- LOBSTR — Switching to on-device key storage
- LOBSTR — Stellar swaps and fees
- LOBSTR — XRP Ledger and cross-chain swaps
- LOBSTR — Vault
- LOBSTR — GitHub repositories
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