Esimify does not provide any Poland eSIM plans that include a phone number or SMS capability. All of its Poland offerings are strictly data‑only, so travelers will need to rely on the internet for communication.
This means you can still use popular VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection to make calls and send messages. However, some destinations may block or restrict certain apps or VoIP services, so it is advisable to confirm that the messaging tools you depend on work in Poland before purchasing a plan.