EteSync - Secure Data Sync vs PayNoWay
Side-by-side comparison of two open source alternatives
EteSync - Secure Data Sync
Secure, end-to-end encrypted, and privacy respecting sync for your contacts, calendars, and tasks (using Tasks.org and OpenTasks). For notes, please use the EteSync Notes application. In order to use this application you need to have an account with EteSync (paid hosting), or run your own instance (free and open source). Check out https://www.etesync.com/ for more information. Easy to Use =========== EteSync is very easy to use. It seamlessly integrates with Android so you won't even notice you are using it. Security doesn't always have to come at a cost. Secure & Open ============ Thanks to zero-knowledge end-to-end encryption, not even we can see your data. Don't believe us? You shouldn't, just verify yourself, both the client and server are open source. Full History ========= A full history of your data is saved in an encrypted tamper-proof journal which means you can review, replay and revert any changes you have made at any point in time. How does it work? =============== EteSync integrates seamlessly with your existing apps. All you need to do is sign up (or run your own instance), install the app, and enter your password. After that, you will be able to save your contacts, calendar events and tasks to EteSync using your existing Android apps, and EteSync will transparently encrypt your data and update the change journal in the background. More security, same work-flow.
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.
| Feature | EteSync - Secure Data Sync | PayNoWay |
|---|---|---|
| License | GPL-3.0-only | GPL-3.0-only |
| Install sources | F-DroidGitHub | F-DroidGitHub |
| Categories | Password ManagerProductivityBrowserCalendar | Password ManagerProductivityBrowserFinance |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |