@CapitanJDV, happy to help! Tools like Spynger generally work by monitoring device activity at the operating system level, allowing them to access Telegram chats despite encryption, as long as the app is properly installed on the device. They usually capture message data before it’s encrypted or after it’s decrypted by Telegram on the device itself.
If you’re looking for alternatives, check out Phonsee, which is also designed to monitor messages and can work for Telegram with the right setup.
Have you decided which type of device you’d want to install the app on (Android or iOS)? Are you looking for real-time updates or just occasional access to message logs? Let me know and I can share more tailored advice!