Firebase's paid infrastructure features are the Realtime Database, Storage, Hosting, and Test Lab. We offer a free tier for all of these features except Test Lab.

Firebase also has many free features: Analytics, Cloud Messaging, Notifications, Remote Config, App Indexing, Dynamic Links, Invites, Crash Reporting, and Authentication. You can use an unlimited amount of any of these features in all plans, including our free Spark plan.

Our Spark plan is a great place to develop your app for free, whether a hobby project or the next big start-up. You get all the free Firebase features (Analytics, Notifications, Crash Reporting, and so on) and generous amounts of our paid infrastructure features. However, if you exceed your Spark plan resources in a calendar month, your app will be shut off for the remainder of that month. In addition, Test Lab and Google Cloud Platform features are not available in the Spark tier.

Our Flame plan is designed for early-stage startups and small- production apps looking for a predictable, low price but with more capacity than our free-tier offers for the Realtime Database, Storage, or Hosting resources. Like the Spark plan, neither Test Lab nor paid Google Cloud Platform is available. Exceeding your plan resources in any month will cause your app to be shut off for the remainder of that month.

Our Blaze plan is designed for large-scale production apps, apps that cannot accept downtime for exceeding plan limits, or customers who want to use our Test Lab feature. The Blaze plan also allows you to extend your app with paid Google Cloud Platform features. You pay only for the resources you consume, allowing you to scale with demand, and always guaranteeing you the best price. We strive to make our Blaze plan prices competitive with industry-leading cloud providers.

Firebase imposes hard limits on the number of simultaneous connections to your app's database. These limits are in place to protect both Firebase and our users from abuse.

The Spark plan limit is 100 and cannot be raised. The Flame and Blaze plans currently have an initial limit of 10,000 simultaneous database connections. This is to prevent abuse and can be raised by contacting Firebase support with 24 hours' notice.

This limit isn't the same as the total number of users of your app, because your users don't all connect at once. We encourage you to monitor your peak simultaneous database connections and upgrade if needed.

We're working to remove the initial 10,000 simultaneous-connections cap on the Flame and Blaze plans.

To provide you with a predictable price, the resources available to you in the Spark and Flame plans are capped. This means that when you exceed any plan limit in any month, your app will be turned off to prevent any further resource usage and additional charges.

Usage is measured monthly, and if your app is disabled in a given month because of usage, it is automatically re-enabled at the beginning of the next month.

We will attempt to notify you by email as you approach your resource limits. Of course, this may not be possible if a sudden spike in usage occurs. To avoid caps altogether, upgrade to the Blaze plan, which has no resource limits.

Firebase is deeply integrated with Google Cloud Platform. Every Firebase project is also a Google Cloud Platform project under the hood, meaning:

• Certain Firebase features are backed directly by Google Cloud Platform, such as Firebase Storage, which is backed by Google Cloud Storage. The list of features backed by Google Cloud Platform will continue to grow over time.
• Many of your settings, including collaborators and billing information, are shared by Firebase and Google Cloud Platform. All of your usage for both appears on the same bill.

In addition, when you upgrade to the Blaze plan, you can use any of Google Cloud Platform's world-class Infrastructure-as-a-Service and APIs directly inside your Firebase project, and at standard prices. You can also export data from Firebase Analytics directly to BigQuery for analysis. LEARN MORE.

There are many security-enhancing, latency-improving, and time-saving benefits to using Google Cloud Platform with Firebase (versus other, non-colocated cloud services). Check out the Google Cloud Platform site for more details.

Yes, you can upgrade, downgrade, or cancel at any time. Note that we don't provide prorated refunds for downgrades or cancellations. This means that if you downgrade or cancel before the end of your billing period, you still pay for the remainder of the month.

All Firebase apps, including free plans, come with email support from Firebase staff during US Pacific business hours. All accounts are limited to five technical (troubleshooting) questions per year, but have unlimited support for billing-related issues, account-related issues, and incident reports.

No, you cannot currently cap your Blaze plan usage. We are working on adding this feature.

Automated backups are an advanced feature for customers on our blaze plan that backs up your Firebase Realtime Database data once a day and uploads it to Google Cloud Storage.

We do not offer hourly backups.

Yes for upgrades and no for downgrades. You can upgrade or downgrade at any time. Upgrades are prorated, and dowgrades are not prorated. If you sign up for the Flame plan partway through the month, you will be charged only for the remainder of the month. However, if you downgrade partway through the month, you'll be charged for the remainder of the month (this is to prevent abuse).

Our Spark and Flame plans can be used by any type of individual or organization, including nonprofits, schools, and open-source projects. Since these plans already include generous quotas, we don't offer any special discounts or plans for open-source, nonprofit, or educational projects.

Our Blaze plan is suitable for enterprises of all sizes, and our SLA meets or exceeds the industry standard for cloud infrastructure. However, we do not currently offer Enterprise contracts, pricing, or support, nor do we offer dedicated infrastructure hosting (that is, on-premises installations) for services like our Realtime Database. We are hard at work adding some of these features.

We offer ad-hoc pricing in the Blaze plan, where you pay only for the features you use.

The Firebase pricing plans are separate from AdWords, so there are no free advertising credits. As a Firebase developer, you are able to "link" your AdWords account to Firebase to support conversion tracking.

All ads campaigns are managed directly in AdWords, and AdWords billing is managed from the AdWords Console.