Four backends. One honest table.
Same usage, four price tags. Where we can't verify a number, we say so — we don't invent one.
Your usage
Firebase bills per operation; Supabase bills per plan plus overages; PocketHost and InvisibleDB bill per seat. The table below applies each provider's actual pricing model to the same numbers.
What the table leaves out
- Firebase egress is not modeled. Downloads, function egress, and CDN transfer bill separately ($0.12 / GB on legacy buckets) and are the most common surprise line items. Treat the Firebase row as a floor.
- Supabase bandwidth is assumed inside the 250 GB quota. Beyond that it's $0.09 / GB — media-heavy apps get there fast. Compute add-ons (Micro is included; Small and up are not) and realtime/edge-function overages are not modeled.
- PocketHost plan limits aren't public in a form we could verify. The $9.99 / seat rate is the figure we were given; what happens past plan limits is marked varies rather than guessed.
- Supabase counts a real Postgres database — no per-row operation charges, which is why reads/writes don't move its number. That's a genuine architectural advantage at high operation volume.
- InvisibleDB's number is the whole bill. One seat covers auth, realtime database, file storage, admin UI, and vector search — the database file itself is yours to keep.
Pricing sources
- Firestore pricing — Google Cloudas of Oct 2026
Standard edition, us-central1: $0.03 / 100K reads, $0.09 / 100K writes, $0.01 / 100K deletes. Free: 50K reads, 20K writes, 20K deletes per day. Source ↗
- Firestore Enterprise pricing — Firebase docsas of Oct 2026
Standard vs Enterprise edition rate table, us-central1 (Standard edition rates match the Cloud table). Source ↗
- Firebase Pricing pageas of Oct 2026
Auth free up to 50K MAU, then Identity Platform pricing. Cloud Storage legacy buckets: 5 GB stored free then $0.026 / GB; 1 GB / day downloads free then $0.12 / GB.
- Firebase Authentication pricing — Logto analysisas of Jul 2026
Tier 1 MAU tiers: $0.0055 (50–100K), $0.0046 (100K–1M), $0.0032 (1M–10M), $0.0025 (10M+). Phone-auth SMS $0.01–$0.46 per send by region. Source ↗
- Supabase pricing 2026 — ShipAIas of 2026
Free: 500 MB DB, 5 GB bandwidth, 1 GB storage, 50K MAU. Pro $25 / mo per project: 8 GB DB, 250 GB bandwidth, 100 GB storage, 100K MAU. Source ↗
- Supabase pricing 2026 — Dev.toas of Sep 2026
Pro overages: DB $0.125 / GB, bandwidth $0.09 / GB, file storage $0.021 / GB, MAU $0.00325 / MAU, edge functions $2 / million invocations. Source ↗
- PocketHost pricingas of Oct 2026
$9.99 per seat, as specified for this comparison.
- InvisibleDB pricingas of Oct 2026
$6.99 / mo per seat, first seat $1 — matches the InvisibleDB pricing page.
What these numbers are — and aren't
Estimates from public list prices, not quotes. Firebase rows use Standard edition us-central1 rates and exclude egress, deletes, functions, SMS, and multi-region uplifts. Supabase rows assume the Pro plan with usage inside the 250 GB bandwidth quota and no compute upgrades. PocketHost limits and overages are unverified. Actual bills vary by region, usage pattern, and discounts — and any provider can change prices at any time.