Best offer on record: FCM No-Cost Free Tier (Spark & Blaze plans). 4 verified findings, checked 2026-10-22.
Offers
FCM No-Cost Free Tier (Spark & Blaze plans) high confidence
FCM is listed as 'no-cost' on both the free Spark plan and the pay-as-you-go Blaze plan. No per-message charge and no monthly cap on message count — unlimited sends in principle. The only constraint is a rate quota: the HTTP v1 API default is 600,000 downstream messages/minute per project (HTTP 429 RESOURCE_EXHAUSTED above it). Payload up to 4096 bytes per message (2048 bytes for topic messages). Works on Android, iOS and web.
Eligibility
Universal — open to anyone (student, startup, or enterprise). No .edu email, no startup age/funding test, and NO credit card required on the Spark plan. Not region-limited for the free tier.
How to claim
Create a Firebase project (defaults to the no-cost Spark plan, no billing account or card needed). Send push via the console Notifications composer, the server SDKs, or the FCM HTTP v1 API. Upgrade to Blaze only if you need to exceed quotas or enable other paid services.
Expiry
No expiry — always free; quotas are 'subject to change' but no renewal is required.
Gotchas
600k msg/min rate quota returns 429 when exceeded; client errors (HTTP 400-499, excluding 429s) also count against quota; quota windows are not clock-aligned (bursts can still throttle). Collapsible messages are capped at 20 bursts/app/device. Topic fan-out to large audiences is slow (minutes, not seconds) and messages are best-effort with no delivery guarantee. The backend you run to dispatch (e.g., Cloud Functions) is billed on its own terms, not free. To raise the quota you must show >=80% usage for 5 consecutive min/day and a <5% client-error ratio; temporary/launch spikes are handled via Firebase Support (max 2 temp events/yr, <=30 days total). FCM is push-only: it offers no email or SMS (Firebase Auth phone sign-in is billed per SMS, not a free tier).
Google Cloud / Firebase $300 Free Trial credit (90 days) high confidence
New Google Cloud customers get a $300 'Welcome' credit valid for 90 days, plus access to the Always Free tier during the trial. The credit can be applied to ANY Google Cloud / Firebase service, including ones that are not free (Cloud Functions, Firestore beyond free limits, Hosting bandwidth, App Hosting, etc.). A credit/debit card is required at signup solely for identity/fraud validation — you are not charged unless you explicitly upgrade to a paid account. One-time and non-renewable. NOTE: the period is 90 days, not 30.
Eligibility
Must have NEVER been a paying Google Cloud / Google Maps Platform / Firebase customer AND never signed up for the Free Trial. A corporate card is not required (a personal card is fine). New customers only; US/MX government entities excluded.
How to claim
Sign up for the GCP Free Trial ($300 / 90 days) and create a Cloud Billing account (card entered for validation only). In the Firebase console, link that billing account to a project to move it to the Blaze plan — the $300 then applies across Firebase. As of March 2025, eligible users are routed straight into the Free Trial signup from the Firebase console.
Expiry
Ends when the $300 is spent or 90 days elapse, whichever comes first; unused credit expires at 90 days. Non-renewable. If you do not upgrade to a paid account by day 90, resources are stopped and data may be deleted.
Gotchas
Credit card IS required (unlike the FCM free tier, which needs none). FCM itself is free, so this credit only helps with the non-free services around it. During the trial you cannot: create Cloud VMware Engine resources, use Windows Server images, add GPUs to VMs, or request allocation increases (all need a paid account). No SLA/indemnity applies during the trial and it is not meant for production. Auto-closes at 90 days or on credit exhaustion.
Google for Startups Cloud Program (GCP credits for startups) low confidence
A startup program offering Google Cloud credits plus tools/mentoring, delivered partly through a partner network of accelerators, incubators and VCs. Historically up to ~$150,000 in GCP credits for qualifying early-stage companies (accelerator/VC-linked tracks can receive more), typically valid ~12 months. NOT FCM-specific — credits apply across GCP. IMPORTANT CAVEAT: live 2026 figures could not be read from the page (the page is JS-heavy and returned truncated content; the paths /programs/startups, /transform/startups and /startup returned 404 or only the title 'Google for Startups Cloud Program'), so the exact tiers, funding cap and founding window are UNCONFIRMED.
Eligibility
Early-stage startup: founded within a recent window (commonly ~3-4 years), below a funding cap, HQ in a supported country, registered legal entity. A vetted program, not a free tier.
How to claim
Apply at the Google for Startups Cloud program page (cloud.google.com/startup), either directly (self-service application) or through a partner accelerator/incubator/VC.
Expiry
Credits ~12 months from acceptance (unconfirmed for current cohort).
Gotchas
Could not confirm current credit amounts, funding cap, or founding window from the live page today (WebSearch budget exhausted; URLs moved) — treat all figures as historical/approximate and re-verify on the live page before applying. GCP Marketplace third-party SKUs typically do not draw from program credits.
Google Cloud credits for students / teachers (education) low confidence
Google Cloud has offered education-focused credits for students and teachers. The live specifics (exact credit amount, whether a .edu email or a teacher-license verification is required, and duration) COULD NOT be confirmed today: the education developer portal (edu.dev) failed to resolve (DNS ENOTFOUND) and the GCP /edu page would not render its content. Historically these are comparatively small credits (on the order of hundreds to ~$1,000) for students via an academic/.edu email and for verified teachers. NOT FCM-specific — FCM is free to everyone regardless of this.
Eligibility
Students: academic/.edu email or institutional verification. Teachers: verified teacher status (license/employer proof). Exact current requirements unconfirmed.
How to claim
Sign up via the Google Cloud education credits page using a .edu email (students) or teacher verification (educators); credits deposit to a GCP project. (Unverified flow — confirm on the live page.)
Expiry
Unconfirmed (historically ~12 months).
Gotchas
Could not verify the live amount or eligibility today (low confidence) — do not assume a specific dollar figure or a hard .edu requirement until confirmed on the official page. The FCM free tier does not depend on any of this.
No FCM free offer was sunset in 2025-2026. FCM remains 'no-cost' on the Spark and Blaze plans (always free, no per-message charge; the only limit is the 600,000 msg/min rate quota, which is a throttle, not a billing cap). The GCP/Firebase Free Trial remains $300 for 90 days — a '30-day' figure that surfaced during research was a fetch error, not a real change; the official T&Cs, GCP docs, and the Firebase blog all confirm 90 days. I could not verify the LIVE 2026 figures for the Google for Startups Cloud Program or the education-credits program (program URLs have moved, the pages would not render, edu.dev failed DNS, and the session WebSearch budget was exhausted), so findings 3 and 4 are reported as low-confidence, historical/approximate, and need re-verification on the live pages. One minor 2025 change observed (not FCM-related): the Blaze plan's App Hosting added a no-cost allowance of up to 10 GiB/month of outgoing bandwidth starting Aug 1, 2025. Note on scope: FCM is a push-only service and offers no free email or SMS tier; the 'Email/SMS front' in the task framing does not exist within FCM (Firebase Auth phone sign-in is billed per SMS, not free).