Discord (multilingual):
- Pocket Code: https://catrob.at/dpc
- Luna and Cat: https://catrob.at/lcd
Google group (mainly English):
- Mobile version: https://catrob.at/forum
- Desktop version: https://catrob.at/PocketCodeUserForum
VK.com forum (in Russian):
- Larger group: https://catrob.at/vk
- Smaller group: https://vk.com/pocket__code