SSP Key vs Barcodes Matter
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.
Barcodes Matter
Organize and manage all your smart home device barcodes, including Matter and HomeKit. Scan, add, categorize, and search devices effortlessly. Syncs across devices and supports printing QR codes for easy setup.
- Scan barcodes and QR codes
- Add devices via image, scan, or NFC
- Categorize devices by type and location
- Search and filter devices instantly
- Recognize Matter barcodes for onboarding
- Sync across devices with iCloud
- Print QR codes via AirPrint
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Barcodes Matter is an app for storing your smart home device pairing barcodes, because we think barcodes matter! Effortlessly organise, scan, and manage all your Matter and HomeKit smart home device barcodes in one beautifully simple app. Includes a watch companion app to assist with scanning barcodes that cannot be paired from within the main app, display the barcode on your watch, then scan with the phone. Barcodes Matter makes it easy to: * Scan barcodes and QR codes quickly using your device’s camera * Add Devices by an image, manual code or by scanning an NFC Device * Categorise devices by type, location, and more * Search and filter through your devices instantly * Recognise Matter barcodes and help start device onboarding * Sync across all your devices securely with iCloud * Print QR codes directly from the app using AirPrint * Edit device details anytime to keep your inventory up to date Whether you’re setting up a smart home, keeping track of gadgets, or managing a large inventory — Barcodes Matter gives you the power to stay organized and connected. Features: * Tint-able Interface Colour * Multi-Home support if you manage devices across multi location like Home / Work / Cabin / Holiday Home etc * Lightning-fast scanning with VisionKit * Manual Device Add for devices without a barcode * Full iCloud sync with automatic updates * Clean, simple interface designed for iPhone and iPad * Powerful search and type filtering * Print or Save device QR Codes * Print ALL Device QR codes 16 per page with names and manual paring codes, ready for labelling or pairing * Export ALL Device QR codes 16 per page to a PDF * Native support for Matter and HomeKit devices * Privacy-first: your data stays with you If you have any problems, please contact us via one of the in app options, you can be assure of a timely and personal response.
Screenshots
Verdict
The clearest difference is price: SSP Key at Free against Barcodes Matter's $1.99. SSP Key also leads on rating (5.0 vs 4.8) and iOS requirement (15.1 vs 17.6). Barcodes Matter's advantage is ratings volume (6 vs 1). On update cadence, ads, in-app purchases and device support 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
SSP Key is free to download; Barcodes Matter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SSP Key holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Barcodes Matter has 6 ratings behind it against 1, so its average is the more settled of the two.
SSP Key ships an update fortnightly, Barcodes Matter monthly. The most recent releases landed on September 7, 2026 and September 23, 2026 respectively.
| Parameter | SSP Key | Barcodes Matter |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 5.0 (1 ratings) — better | 4.8 (6 ratings) |
| Positive reviews | — | 90.9% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Fortnightly — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 71 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Influx Technologies Limited | Kevin Marshall |
Customer experience
SSP Key
Barcodes Matter
In-app purchases
SSP Key
No in-app purchases
Barcodes Matter
No in-app purchases









