Good morning! Bitcoin development requires reliable tools.
Electrum app offers stable platform with extensive documentation. For developers: well-documented protocol, stable server API, open-source code to study, active development community. Why test with Electrum: widely used - representative user base, standard Bitcoin implementations, predictable behavior, multiple network support (mainnet/testnet). Technical advantages: SPV implementation to learn from, server protocol well-defined, can run own test servers, Python codebase - readable. What you can test: wallet integration patterns, transaction broadcasting, fee estimation, address generation. Documentation: comprehensive developer docs, active GitHub repository, community support forums. Free to use for testing, works on Android 6.0+, download from Uptodown. Many Bitcoin apps test against Electrum - it's industry standard.