Slush
Mysten Labs
Slush is the official wallet for the Sui blockchain, developed by Mysten Labs (the team behind Sui) and born from the merger of the former Sui Wallet and Stashed. It is available on iOS, Android, as a web app and as a browser extension. It is non-custodial self-custody — the user keeps control of their keys and assets — but introduces onboarding via zkLogin: you can create and access the wallet using a Google or Twitch account, without managing a seed phrase. zkLogin uses a zero-knowledge proof to derive a Sui address from the OAuth credentials without exposing them on-chain: it is a "social" login that stays self-custody, but ties access to the availability of the chosen identity provider. Slush offers swaps, Sui staking, NFT management, "Slush Links" to send tokens via a shareable link and a DApp browser for the Sui ecosystem. The Slush Card is coming, for now on a waitlist. The swap fee is not published as a fixed percentage and depends on the liquidity routes at the time of the swap.
Data & conditions
| Fund custody | Self-custody (funds in your control) |
|---|---|
| Type | Software (hot wallet) |
| Source code | Partly open-source |
| Recovery | Seed phrase (BIP-39) oppure onboarding zkLogin via account Google/Twitch (nessuna seed) |
| Bitcoin-only | No |
| Supported chains | Sui |
| Built-in swap | Yes |
| Built-in staking | Yes |
| dApp browser | Yes |
| WalletConnect | Yes |
| Hardware wallet support | Yes |
| Segment | B2C |
| MiCA / License status | Nessuna (wallet self-custody non-custodial) |
Strengths
- Official Sui wallet by Mysten Labs, with built-in swaps, staking and DApps; zkLogin onboarding that removes the seed phrase while staying self-custody; cross-platform (mobile, web, extension).
- Self-custody: funds stay in your wallet — the platform cannot touch them.
- No KYC: usable without identity verification.
Weaknesses
- Focused on a single blockchain (Sui): it is not multi-chain; zkLogin onboarding ties access to an external provider (Google/Twitch), reducing sovereignty compared with a pure seed; the Slush Card is waitlist-only.
- No notable sovereignty drawback documented.
Verdict
Score 4.0/5, solid profile. In its favour: official Sui wallet by Mysten Labs, with built-in swaps, staking and DApps; zkLogin onboarding that removes the seed phrase while staying self-custody; cross-platform (mobile, web, extension). The trade-off to weigh: focused on a single blockchain (Sui): it is not multi-chain; zkLogin onboarding ties access to an external provider (Google/Twitch), reducing sovereignty compared with a pure seed; the Slush Card is waitlist-only.
On the Sovereignty lens the score is 4.0/5 (very strong): the strength is fund control (5.0/5), while trustless / auditability (2.5/5) is the weak link.
Promp's editorial rating based on real fees and net annual cost. Promp reviews third-party products independently.
"Sovereignty" rating: score computed on privacy/anonymity (30%), fund control (20%), censorship resistance (20%), trustless/auditability (20%) and costs (10%). Same data, different weights.
FAQ
How does login with Google or Twitch work on Slush?
Slush uses zkLogin: a zero-knowledge proof derives a Sui address from your OAuth credentials (Google, Twitch and other providers) without exposing them on-chain and without making you manage a seed phrase. It stays a self-custody wallet — you control the assets — but access depends on the availability of the chosen provider; that is why it is advisable to also set up an alternative recovery method.
Is Slush custodial?
No. Slush is non-custodial: you keep control of your keys and assets, and Mysten Labs cannot spend on your behalf. Even with zkLogin onboarding the custody stays yours; the difference is in how you access the wallet, not in who owns the funds.
What is the Slush Card?
The Slush Card is a card announced by Mysten Labs linked to the Slush wallet, currently available only via a waitlist. The operational details (regions, terms, fees) are not yet public and should be verified at launch.
Sources
- Official service page Piattaforme · Sui · Zklogin · Swap · +2 Data verified on Aug 3, 2026
- docs.sui.io Zklogin · Self custody · Staking · Funzioni Data verified on Aug 3, 2026
- mystenlabs.com Rebrand ex sui wallet · Issuer · Mysten labs Data verified on Aug 3, 2026