Head to head

Google Cloud SQL / AlloyDB vs PlanetScale

Both platforms are scored with the same methodology and the same category rubric. Nothing on this page is influenced by advertising.

 
54/100
56/100Higher score
Category rank#5#1
ConfidenceHigh confidenceHigh confidence
External Reputation8269
AI Authority5052
Web Authority925
Expert Assessment6875
TOP10 User Score
PricingCloud SQL shared-core db-f1-micro $0.0105/hr (us-central1); no SLA coverage for shared-core machine types · free tier: Cloud SQL: $300 in free credits for new customers plus a separate Cloud SQL free trial with restrictions removed on upgrade; AlloyDB: 30-day free trial cluster with up to 1 TB data, an 8-vCPU primary and an 8-vCPU single-node read pool, in addition to the 90-day $300 Google Cloud free trial.$5/month (Postgres PS-5 single node, EBS, us-east-1); $15/month for a 3-AZ HA PS-5 cluster · free tier: None — the vendor confirms the former Developer/Hobby free plan no longer exists and all databases require a paid subscription; there is no free evaluation path
Pricing modelUsage-basedSubscription (per-cluster SKU) plus metered storage, egress and backups
Best forTeams already standardised on Google Cloud running MySQL or PostgreSQL who want managed HA and PITR without DBAs, and have predictable enough capacity to commit to 1- or 3-year CUDs; for read-heavy PostgreSQL at scale, AlloyDB's shared-storage model and 288-vCPU nodes are the stronger fit.Engineering teams that want branching-based schema workflows with predictable per-cluster pricing, MySQL shops needing Vitess horizontal sharding without operating it, IOPS-bound workloads suited to Metal NVMe, and enterprises needing the database inside their own AWS/GCP account with PCI via Managed.
Avoid if You are a solo developer or small project needing a cheap SLA-backed instance, you hold existing SQL Server licences (no BYOL, $0.47/core-hr Enterprise with a four-core minimum), you need a firm forecastable monthly number before signing, you run an EOL major version, or your architecture is egress-heavy to clients outside Google Cloud at $0.19/GiB. You need a free tier or a zero-cost evaluation path, run many production environments (each is a full-price cluster), need Postgres horizontal sharding or read-only regions today, require PCI on a single-tenant deployment, or your procurement process demands a large verifiable review corpus.
MarketsSMB, Enterprise, Startups, DevelopersSMB, Startups, Enterprise, Engineering teams
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A higher TOP SCORE means more of the evidence favours that platform on this methodology — it is not a recommendation, and it does not account for your specific requirements. Advertisers are never declared the winner of a comparison.