Comparison

SSP Key vs Universal Profiles

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • Blockchain-based digital identity
  • Secure online presence management
  • Digital asset management
  • Decentralized application interaction
  • LUKSO blockchain integration
  • Easy onboarding for new users
Read full description

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.

Screenshots

SSP Key4 screens
Universal Profiles4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
SSP Key versus Universal Profiles: the parameters behind the verdict, then further details
ParameterSSP KeyUniversal Profiles
PriceFreeFree
Rating5.0 (1 ratings) — better4.9 (30 ratings)
Positive reviews—93.3% of reviews
Number of ratings130 — better
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better16.4
Further details — not scored
Size71 MB110 MB
Age rating4+4+
DeveloperInflux Technologies LimitedUniversal Everything GmbH

Customer experience

SSP Key

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Universal Profiles

All ratings28 ratings
Positive96.4%
Neutral3.6%
Negative0.0%
Written reviews30 reviews
Positive93.3%
Neutral6.7%
Negative0.0%

In-app purchases

None

SSP Key

No in-app purchases

None

Universal Profiles

No in-app purchases

Questions

Is SSP Key free?
SSP Key is free to download, with no in-app purchases.
Is Universal Profiles free?
Universal Profiles is free to download, with no in-app purchases.
Which has better reviews, SSP Key or Universal Profiles?
SSP Key is rated higher. SSP Key averages 5.0 out of 5 from 1 ratings, while Universal Profiles averages 4.9 from 30 ratings.
Do SSP Key or Universal Profiles have ads?
Neither SSP Key nor Universal Profiles shows ads.
Which is updated more often, SSP Key or Universal Profiles?
SSP Key ships an update fortnightly, and Universal Profiles every 3 weeks. Most recently, SSP Key was updated on September 7, 2026 and Universal Profiles on June 30, 2026.

Other comparisons