Backblaze B2 is simple, reliable, affordable object storage. Each account gets 10 GB of free storage, unlimited free uploads, and 1 GB of free downloads each day. There are no hidden fees. See the Pricing page for details.

Get started at the Backblaze Developer site: sign up for B2, create an application key, then [explore the Backblaze B2 S3 Compatible API] here on Qodex.