SSP Key vs Universal Profiles
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SSP Key
This app provides a secure, two-factor authentication method for managing your cryptocurrency wallet. It utilizes a 2-of-2 multi-signature approach, requiring two devices to authorize transactions for enhanced security. Connect to dApps seamlessly with WalletConnect.
- Two-factor authentication for crypto
- 2-of-2 multi-signature security
- Private keys never shared between devices
- Open-source for transparency
- WalletConnect integration for dApps
- Supports multiple blockchain chains
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SSP Key – Secure. Simple. Powerful. Your 2FA for SSP Wallet: the second key in true 2-of-2 multisignature self-custody. SSP Key turns your phone into the second factor of a genuine two-of-two multisig wallet. The SSP Wallet browser extension holds one private key, and SSP Key holds the other. Every transaction must be signed by both devices — so a stolen laptop, a phished password, or a compromised browser is never enough to move your funds. There is no single seed phrase that can be stolen from one device. HOW IT WORKS - A transaction is created and signed in SSP Wallet on your computer. - The request instantly appears on your phone in SSP Key. - You review the details and approve — SSP Key adds the second signature. - Keys are generated on your devices and never leave them. No seed, private key, or extended private key is ever shared between devices. APPROVE WITH CONFIDENCE See exactly what you are signing before you sign it: recipient, amount, fee, and chain, with decoded contract calls for dApp interactions. Approvals are protected by Face ID, Touch ID, or your PIN. OPEN SOURCE AND AUDITED The entire codebase is public — anyone can review, audit, and contribute. SSP Wallet, SSP Key, and the SSP smart contracts have been independently audited by Halborn. SSP Key also integrates LavaMoat runtime protection to defend against supply-chain attacks. MULTI-CHAIN, ONE KEY One SSP Key secures all your chains: Bitcoin (BTC, Native SegWit), Ethereum (ETH), and major EVM networks — Polygon (POL), Base (ETH), BNB Smart Chain (BNB), Avalanche C-Chain (AVAX) — plus Solana (SOL) and Litecoin (LTC), Bitcoin Cash (BCH), Dogecoin (DOGE), Zcash (ZEC), Ravencoin (RVN), and Flux (FLUX), with custom token support on EVM and Solana chains. On Ethereum and EVM chains, SSP is the first wallet with true Schnorr multi-signature Account Abstraction (ERC-4337). WEB3 READY Connect SSP Wallet to thousands of dApps through WalletConnect v2 (Reown). Every dApp transaction and signature still requires approval on your SSP Key — multi-signature security for all of Web3. WORKS OFFLINE TOO Sign transactions entirely offline using QR-code synchronization between your devices — self-custody that works even in restricted or air-gapped environments. GETTING STARTED 1. Install SSP Wallet in your browser (Chrome or Firefox). 2. Install SSP Key (this app) on your phone. 3. Scan the sync QR code — your 2-of-2 wallet is ready in minutes. 4. Approve transactions with a single slide, secured by biometrics. Guides and documentation: docs.sspwallet.io SSP Key is built for people who value security, transparency, and real self-custody — whether you are new to crypto or protecting serious holdings.
Universal Profiles
Manage your blockchain-based digital identity securely and easily. Interact with decentralized applications, send and receive digital assets, and control your online presence on the LUKSO blockchain. New users can create their first profile with a simple onboarding process.
- Blockchain-based digital identity
- Secure online presence management
- Digital asset management
- Decentralized application interaction
- LUKSO blockchain integration
- Easy onboarding for new users
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Based on the ERC725 Account (LSP0) standard, Universal Profiles are blockchain-based digital identities that provide a secure and user-friendly way to manage your online presence and assets. The Universal Profiles mobile app enables flexible and secure management of your Universal Profiles and interactions with decentralised applications on the LUKSO blockchain, like sending and receiving digital assets. If you already have a Universal Profile on the Universal Profiles browser extension, you can export it to the this mobile application and enjoy your it on both platforms. If you are a new user, the easy onboarding process will help you create your very first Universal Profile and introduce you to decentralised social world of LUKSO. Join the decentralised revolution and take control of your digital identity with Universal Profiles.
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Verdict
The clearest difference is ratings volume: Universal Profiles at 30 against SSP Key's 1. SSP Key's advantage is device support (3 vs 1). On price, rating, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for SSP Key against 4.9 for Universal Profiles. That said, the two scores are not equally well evidenced: Universal Profiles has 30 ratings behind it against 1, so its average is the more settled of the two.
SSP Key ships an update fortnightly, Universal Profiles every 3 weeks. The most recent releases landed on September 7, 2026 and June 30, 2026 respectively.
| Parameter | SSP Key | Universal Profiles |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.9 (30 ratings) |
| Positive reviews | — | 93.3% of reviews |
| Number of ratings | 1 | 30 — better |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 71 MB | 110 MB |
| Age rating | 4+ | 4+ |
| Developer | Influx Technologies Limited | Universal Everything GmbH |
Customer experience
SSP Key
Universal Profiles
In-app purchases
SSP Key
No in-app purchases
Universal Profiles
No in-app purchases









