PayNoWay vs Yivi
Side-by-side comparison of two open source alternatives
PayNoWay
Double-spending is no longer a theoretical possibility but a practical reality. Most of the end-user applications used widely today leave their users vulnerable to being defrauded via double-spend attacks. PayNoWay is a tool that you can use to test the applications that you, or your business, depend on to accept on-chain cryptocurrency payments. Features: - Send payment transactions with the same UX flow as other wallet applications. - Easily broadcast double-spend transaction after a payment is sent, to return the funds to the internal wallet address. - Fetch current network fee rate, or set a custom value. - Optionally set automatic broadcasting of double-spend transactions. - Control what happens to the payment transaction output - "Drop it" or "Replace with dust". - By default double-spend transactions are broadcast to several web services simultaneously to improve chances of confirmation. - Bitcoin mainnet and testnet networks - Several address types - Legacy (p2pkh), SegWit backwards compatible, SegWit (bech32). - Transaction history view where you can re-broadcast any past transaction, copy to clipboard any transaction as raw hexadecimal, or update any locally stored transaction by fetching it from the configured web service. - Statistics dashboard (Payments vs. Double-spends) which shows total number of transactions as well as their total values. Optionally reset the dashboard at any time. Disclaimers: - This app is intended to be used for testing and educational purposes. - Please do not use this app to double-spend against merchants without their explicit consent. - A successful double-spend is not guaranteed - use at your own risk. - You are responsible for creating a backup of your private key(s). Without a backup, if you delete the app or lose your device, your funds will be permanently lost. Permissions: - Camera, flashlight - To scan QR codes that contain an on-chain addresses, payment requests, and optionally a private key (WIF) during configuration. - Access network state - For detecting if the device is offline. This helps provide feedback to you, the user, in case of temporary loss of network connectivity. - Internet - To query web service APIs to broadcast transactions, fetch minimum relay fee rate, fetch transaction history and unspent transaction outputs.
Yivi
Yivi is an app that lets you easily and securely log in, share data and prove who you are. Without sharing too much about yourself. With Yivi, you take control of your data. You always see what an organisation wants to know about you and you decide whether to share that data. Your data is only stored on your mobile, safely behind a PIN code. No one is watching, not even Yivi. That's how safe it is. Yivi is being developed by Caesar Groep, in close collaboration with the Privacy by Design Foundation, whose original work forms the foundation of the system. Previously known as “IRMA,” the Yivi ID wallet is fully open source and designed with privacy and user-friendliness at its core. Yivi website: www.yivi.app/en/ Technical documentation: https://docs.yivi.app/what-is-yivi Source code: https://github.com/privacybydesign
| Feature | PayNoWay | Yivi |
|---|---|---|
| License | GPL-3.0-only | GPL-3.0-only |
| Install sources | F-DroidGitHub | F-DroidGitHub |
| Categories | Password ManagerProductivityBrowserFinance | Password ManagerProductivityBrowser |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |