SSP Key vs Concordium ID
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.
Concordium ID
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Concordium ID Secure, privacy-protected Identity for Web3 Concordium ID app enables users to verify their real-world identity and create secure, self-managed blockchain accounts. Built on Concordium’s privacy-centric Layer 1 blockchain, the app facilitates seamless identity issuance and interaction with decentralized applications (dApps) in a secure and user-consented way. Key Features: Privacy-preserving identity verification Seamless integration with dApps via ReOwn Protocol (formerly WalletConnect) Enable the creation of Concordium blockchain accounts Sign credential deployment transactions securely Fully non-custodial: You control your data and keys ConcordiumID app is essential for multichain crypto wallets looking to enable the Concordium network without having to integrate Concordium's unique ID later.
Screenshots
Verdict
SSP Key and Concordium ID are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
SSP Key ships an update fortnightly, Concordium ID every 4 weeks. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.
| Parameter | SSP Key | Concordium ID |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly — better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 — better | 15.5 |
| Further details — not scored | ||
| Size | 71 MB | 75 MB |
| Age rating | 4+ | 17+ |
| Developer | Influx Technologies Limited | Concordium Software ApS |
In-app purchases
SSP Key
No in-app purchases
Concordium ID
No in-app purchases









