Multi-cloud deployment in 2026: how Upsun, Fly.io, and Render handle cloud distribution
Blog post from Upsun
In 2026, the concept of "multi-cloud" remains complex, often referring to different practices such as distributing applications across regions for latency, selecting regions per service without interconnection, or deploying the same application to different cloud providers as needed. Upsun, Fly.io, and Render are notable platforms, each addressing distinct challenges within the multi-cloud ecosystem. Fly.io focuses on true multi-region compute, distributing applications geographically within its own infrastructure to enhance latency; however, it lacks cloud provider flexibility. Render offers region-specific service deployment with simplified, predictable hosting but does not support cross-region networking or multi-cloud capabilities. Upsun emphasizes cloud portability, allowing applications to be defined once and deployed across various providers such as AWS, Azure, or Google Cloud, offering consistent workflows and compliance across environments, though lacking automatic failover. The article clarifies misconceptions around multi-cloud deployment, noting that the real challenge for organizations often lies in managing diverse applications across multiple providers rather than running a single application on multiple clouds simultaneously.
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