How to Check Your Firebase Bill and Budget From Your Phone
A Blaze project can run up a bill overnight. How to check the billing account and budget from your phone.
4 min read · updated October 19, 2026
Why this matters on Blaze
On the Blaze plan, Firebase bills by usage and there is no hard spending cap. A function stuck in a loop, or a listener reading a whole collection on every change, can cost real money before morning. A budget does not stop spending, but it is how you get warned.
Budgets, in one minute
- Budgets live in Google Cloud Billing, not in the Firebase console.
- A budget has an amount and alert thresholds, for example 50%, 90% and 100%.
- When a threshold is crossed, billing admins get an email. Spending does not stop.
- Cost data can lag by several hours, so set thresholds lower than you think.
Checking it in FireLog
- 1
Open the project
Sign in with Google and pick your Blaze project.
- 2
Open Budget
FireLog shows the linked billing account and the project's budget amount and period.
- 3
Adjust it
Edit the budget amount from your phone when your usage changes (Pro).
FireLog reads this through the Cloud Billing and Billing Budgets APIs with your Google account, so you need a billing role on the account to see or change it, just as in the Cloud console.
What usually runs up a Firebase bill
| Cause | Where to look |
|---|---|
| Firestore reads from a listener on a large collection | Firestore usage tab |
| A function that triggers itself | Cloud Functions invocations and logs |
| Large files served from Storage | Storage egress |
| Phone Auth SMS in many countries | Authentication usage |
For the full picture of what is free and what costs money, read Firebase pricing explained. Get FireLog on the App Store or Google Play.
Frequently asked questions
- Does a Firebase budget stop spending?
- No. Budgets send alerts when thresholds are crossed. Stopping spending needs a function that disables billing on a budget notification.
- Where do I set a Firebase budget?
- In Google Cloud Billing under Budgets & alerts, or from your phone with FireLog Pro.
- Can I see my Firebase bill on my phone?
- FireLog shows the project's billing account and budget. Detailed cost reports are in the Cloud Billing console.
- Is there a spending limit on the Blaze plan?
- There is no built-in hard limit. Usage is billed as it happens, which is why budget alerts matter.