Quick answer
Azure App Service - Azure App Service wins for most builders who want a simple free tier that can grow into broader app types, while Firebase App Hosting is better if you are already building Angular or Next.js apps and want the tighter Firebase deployment workflow.
How the free tiers compare
These two free tiers solve different problems. Firebase App Hosting is narrower but more opinionated: it is built around modern full-stack web apps, especially Angular and Next.js, and its free tier is quota-shaped around the actual delivery pipeline, with separate caps for Cloud Run, Cloud Build, logging, secrets, storage, and bandwidth. That makes it a good fit when you want managed deployment mechanics and are comfortable staying inside Google Cloud’s billing model after you outgrow the free limits. Azure App Service is broader and more general-purpose. Its free plan is explicitly for trials, experimentation, and learning, with no SLA, but the paid path fans out into several App Service families and instance sizes, which gives you more room to choose a shape that matches traffic, memory, and scaling needs. The tradeoff is that the free plan is simpler, but the next steps are less tied to one modern web framework story.
App Hosting (Firebase) vs Azure App Service free tier, side by side
| App Hosting (Firebase)FTV 49 | Azure App ServiceFTV 52 | |
|---|---|---|
| Free plan typeBoth are capped free tiers, not always-free unbounded offers. | Spark free tier | Free plan for trials, experimentation, and learning |
| SLAOnly B explicitly states no SLA in the supplied data. | Not stated in the provided input | No SLA included for free and shared plans |
| Compute quotaA measures serverless runtime usage, while B uses a daily CPU-minute cap. | Cloud Run up to 180,000 vCPU-seconds and 360,000 GiB-seconds | Shared compute with 60 CPU minutes per day |
| Request quotaA includes request volume in the free tier. | Cloud Run requests up to 2 million requests | Not provided |
| Build quotaA includes build minutes in the free tier. | Cloud Build up to 2,500 build-minutes | Not provided |
| Storage quotaB’s free plan states a simple storage cap; A splits storage across Artifact Registry and Cloud Storage. | Artifact Registry storage up to 0.5 GB per month; Cloud Storage up to 5 GB-months in us-central1 only | 1 GB storage included |
| Bandwidth quotaA exposes an explicit bandwidth limit. | Outgoing bandwidth up to 10 GiB per month | Not provided |
| Memory quotaThese are not directly comparable units, but both constrain memory usage. | Cloud Run memory up to 360,000 GiB-seconds | 1 GB RAM included |
After you outgrow the free tier
Firebase App Hosting moves from Spark into Blaze, which is usage-based pay as you go. That means costs start where your consumption crosses the free quotas, and the bill can rise with build minutes, runtime, requests, logging, secrets, bandwidth, and storage. Azure App Service has several per-unit paid plans, starting with Shared, then Basic, then Premium v3 and v4, but the input does not provide dollar prices, so the post-free comparison is mostly about plan shape rather than exact cost. For a small team, Firebase is cheaper until you hit its usage caps, while Azure becomes the more flexible fit once you need a more traditional app service ladder.
Cost at real usage
| Usage | App Hosting (Firebase) | Azure App Service |
|---|---|---|
| Light trial app, staying within free quotasBoth free plans are usable for experimentation if the app stays small. | Free (within tier) | Free (within tier) |
| App that exceeds free runtime and build usage but is still smallNo unit prices were provided, so only the billing model can be stated. | Usage-based billing starts after free quotas, exact cost not provided | Would need a paid App Service plan, exact cost not provided |
| Low-traffic production web app needing more instance capacityAzure’s paid ladder gives an instance-based path, but the supplied data does not include monthly dollars. | Usage-based billing on Blaze, varies by Cloud Run and related usage | Basic B1, price not provided |
Estimates, not quotes. Usage-based rates change - verify with the vendor's pricing page before committing.
When to pick each one
Pick App Hosting (Firebase) when…
- You are deploying an Angular or Next.js app and want a hosting product tuned for that stack.
- You want a free tier that includes deployment pipeline pieces like Cloud Build, Cloud Logging, Secret Manager, and Cloud Run quotas in one place.
- You are fine with usage-based billing after the free tier and expect to grow through bandwidth, requests, or build minutes.
- You want Google Cloud-backed hosting and your app is already centered on Firebase services.
Pick Azure App Service when…
- You are learning or trialing a web app host and want a general-purpose free plan with a clear path into Azure PaaS.
- You need a broader app host for web apps, APIs, or containerized workloads rather than a framework-specific workflow.
- You expect to compare several paid shapes later, such as Shared, Basic, and Premium tiers, based on traffic and instance size.
- You want to stay in the Azure ecosystem for identity, security, and deployment tooling.
Bottom line
For the most common builder choice, Azure App Service is the safer default because its free tier is clearly framed for trials and it gives you a broader upgrade path across app types and instance sizes. Firebase App Hosting is the better pick if your app is specifically Angular or Next.js and you want the deployment and runtime pieces bundled into one Google Cloud-centered workflow. If you expect to outgrow the free tier quickly, Azure’s plan ladder is easier to reason about. If you want framework fit first, Firebase is the tighter match.
Read the full listings: App Hosting (Firebase) and Azure App Service. Scores use the FTV methodology at /ftv. Browse more head-to-heads on /compare, or see the top-ranked free tiers on /top.