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Flatstack

One flat price for your app's backend

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Database, sign-in, files, email and hosting for app backends from £9 a month with no usage bills.

Overview

Screenshot of the Flatstack homepage

The Flatstack homepage

Flatstack provides a complete backend platform combining database, authentication, file storage, email and hosting in a single service. The platform replaces four separate services with one flat-rate plan, eliminating usage-based billing. Features include SQLite or Postgres databases, passkey and social sign-in, file uploads with image resizing, email sending from custom domains, TypeScript functions, background jobs, and hosting for Next.js, Astro and React Router. Apps can be imported from Lovable Cloud, Supabase or Clerk with minimal setup.

Capabilities

  • SQLite or Postgres database
  • Passkeys, magic links and social sign-in
  • File uploads and image resizing
  • Email sending from custom domain
  • TypeScript server functions
  • Background jobs and scheduled tasks
  • Hosting for Next.js, Astro and React Router
  • Preview deployments per pull request
  • Project parking without pausing
  • MCP integration for AI agents

Pricing

Pricing model: Paid

Hobby £9 a month (1 project, 1M requests, 1 GB database, 5 GB files, 3,000 emails, 1 person). Pro £19 a month (3 projects, 5M requests, 5 GB database with Postgres on 1 project, 25 GB files, 15,000 emails, 3 people). Studio £49 a month (10 projects, 25M requests, 20 GB database with Postgres on 3 pr

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Flatstack fact sheet

Community votes0
Based inLondon, United Kingdom
Websiteflatstack.dev

Flatstack metrics

Vendor metrics for flatstack.dev: Ahrefs Domain Rating and Majestic link data, with the delta since the last review.

Domain Rating
0
no change since last check
Trust Flow
0
no change since last check
Citation Flow
0
no change since last check
Referring domains
0
no change since last check
External backlinks
0
no change since last check

Vendor Domain Rating (Ahrefs) checked 6 Nov 2026, spec changed 2 Nov 2026. Vendor Majestic data checked 2 Nov 2026, spec changed 2 Nov 2026. Link metrics supplied by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.

Flatstack vendor domain

Open the vendor record

We read this from the registry's RDAP record on 5 Nov 2026, 23:11 UTC.

Domain age
19 days
Registered
Expires
Registrar
CloudFlare, Inc.
DNSSEC
Not signed

Vendor domain report: flatstack.dev

Flatstack post-launch report

Measured after Flatstack went live on SaaS Directory Pro on 2 November 2026.
MeasureAt launch, then latest
Domain Rating (Ahrefs)0 to 0 no change since launch
2 Nov 2026, then 5 Nov 2026
Trust Flow (Majestic)0
first measured 2 Nov 2026
Referring domains (Majestic)0
first measured 2 Nov 2026

Day 3 since launch. Next receipt: day 30, 2 Dec 2026. Many things move these figures, so a change is not proof of cause. Only stored readings are shown.

Biggest gains on SaaS Directory Pro

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Compare and explore

See the alternatives to Flatstack, exy.sh API vs Flatstack, Unicorn Panel vs Flatstack, Prisma vs Flatstack, mcfreehost vs Flatstack, VPS Snaps vs Flatstack, tsrelay vs Flatstack, more in Hosting, Cloud & Infrastructure or startups in United Kingdom.

Buyer questions

What happens when I reach a limit?

Requests over the limit get a 429 error and new data cannot be written until the next month. Sign-in and your site continue working.

Will my app pause if nobody uses it?

No, paid projects stay live. Postgres databases sleep when idle and wake on the next request, or can stay awake with Always-on for £15 a month.

Can I leave and take my data?

Yes, you can export everything up to 30 days after you cancel.

Where is my data stored?

Data is stored in the EU or the US, per project.

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More on this profile

Flatstack has a free listing. The owner can unlock the full profile with a paid launch for $5:

  • Founder story (locked)
  • Milestones (locked)
  • Demo video (locked)
  • Dofollow website link (locked)

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