Notion has recently expanded their Student program to countries other than the US. Apply for a free Plus plan for your student organization.

"Student-led organizations at select verified higher education institutions around the globe can get access to our Plus plan and add members for free.
With the Plus plan, student orgs can upload unlimited blocks & file, add members their workspace, 30 day page history, up to 100 guests, and more — free of charge."

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Apply here