# Build a file sharing app with built-in payments via Polar

DevFeed: [Build a file sharing app with built-in payments via Polar](<https://devfeed.tech/articles/build-a-file-sharing-app-with-built-in-payments-via-polar-17828.md>)

Original publisher: [Read original article](<https://encore.dev/blog/polar-tutorial>)

Author: Ivan Cernja

Published: 2025-11-25T00:00:00Z

Content type: tutorial

Language: en

Sources: [Encore Updates](<https://devfeed.tech/sources/encore-updates.md>)

Topics: [Tutorial](<https://devfeed.tech/topics/tutorial.md>), [App](<https://devfeed.tech/topics/app.md>), [Authentication](<https://devfeed.tech/topics/authentication.md>), [Development](<https://devfeed.tech/topics/development.md>), [Software as a service](<https://devfeed.tech/topics/saas.md>), [Database](<https://devfeed.tech/topics/database.md>), [PostgreSQL](<https://devfeed.tech/topics/postgresql.md>)

Tags: [account](<https://devfeed.tech/tags/account.md>), [authentication](<https://devfeed.tech/tags/authentication.md>), [build](<https://devfeed.tech/tags/build.md>), [cloud](<https://devfeed.tech/tags/cloud.md>), [code](<https://devfeed.tech/tags/code.md>), [development](<https://devfeed.tech/tags/development.md>), [object-storage](<https://devfeed.tech/tags/object-storage.md>), [payments](<https://devfeed.tech/tags/payments.md>), [postgresql](<https://devfeed.tech/tags/postgresql.md>), [saas](<https://devfeed.tech/tags/saas.md>), [sdk](<https://devfeed.tech/tags/sdk.md>), [tutorial](<https://devfeed.tech/tags/tutorial.md>)

## AI overview

A tutorial for building a WeTransfer-style file-sharing app with Encore. It covers file uploads, object storage, authentication with BetterAuth, subscriptions and payment processing through Polar, tiered features, and PostgreSQL metadata storage.

## Source excerpt

Create a WeTransfer-style app with subscriptions and object storage