Free needs no credit card

Launch for free.Grow for $5/mo.

Free is for building and launching your app. No credit card. No expiration. When your app grows, Standard is $5/month with three apps and three custom domains. Start free with 500 MB. Unlock the full 1 GB by signing in with Google, GitHub or another supported provider.

Start Free See Every Plan

Substrio

One app, one month

Standard plan$5.00

Every service, any egressIncluded

5 GB of spaceIncluded

50,000 monthly usersIncluded

15,000 emailsIncluded

1,000,000 map tilesIncluded

250,000 requestsIncluded

Unlimited reads, writes and functionsIncluded

Egress, any amountIncluded

Total:$5.00/month

No credit card required for Free. No egress charges on any plan.

The usual stack

4 GB of data, 20,000 users, 10,000 emails, 500,000 map tiles, 150,000 address searches

Supabase Pro8 GB database, 100,000 users, 250 GB egress, 2,000,000 function calls$25.00

Vercel ProOne seat to host the front end$20.00

Resend Pro50,000 emails$20.00

Mapbox Pay-as-you-go500,000 map tiles: the first 200,000 at $0, then $0.25/1,000$75.00

Mapbox Pay-as-you-go150,000 address searches: the first 100,000 at $0, then $0.75/1,000$37.50

Total:$177.50/month

Four vendors. Four API keys. Four bills.

35×lower cost

The same small app

Why pay $177.50 for a stackthat costs $5?

For the example workload shown, Substrio Standard is $5/month versus $177.50/month on the listed paid services. Standard runs it for 35x less than Supabase Pro, Vercel Pro, Resend Pro and Mapbox Pay-as-you-go.

Rival prices are each vendor's paid list price on October 27, 2026: Supabase, Vercel, Resend, Mapbox.

Why It Costs Less

Build it. Ship it. Run it. Scale it.

Free to start.Room to grow.

Free holds 1 app and 1 GB to build and launch it. Standard opens custom domains, more apps and every allowance a growing app needs, for $5/month. Pro at $9/month runs a growing app, and Scale at $49/month lifts every cap but space and CPU share.

Space
Free 1 GBStandard 5 GB
5xon Standard
Apps
Free 1Standard 3
3xon Standard
UsersAuthJet
Free 10,000Standard 50,000
5xon Standard
EmailSendJet
Free 1,000Standard 15,000
15xon Standard
Map tilesMapJet
Free 50,000Standard 1,000,000
20xon Standard
Search and locationMapJet
Free 25,000Standard 250,000
10xon Standard
Live connections
Free 100Standard 500
5xon Standard
Custom domains
Free NoneStandard 3
Your ownon Standard
Scheduled jobs
Free HourlyStandard Every minute
60x as oftenon Standard

Everything you need to grow.$5/month.

5 GB of space, three apps, three custom domains, and no egress fees.

5 GB
of space across your apps, with no fee on a byte stored or served
3 apps
each with separate data and a site, plus 3 custom domains
$0
egress, on every byte your users download
2x CPU Slices
Held for you when the server is busy

The trifecta

Easier. Faster.Far Less Expensive.

Why compromise? Substrio combines agent-powered development, high-performance infrastructure, and radically lower costs. All in one platform, even on Free.

Start now

Start building in minutes.

Create your account or connect your agent. No credit card. No expiration. Sign in once and Free opens to its full 1 GB.

For Agents

Ready to go Pro?

Unlimit yourself with the world's most cost-efficient app platform.

Against Standard: 1.8x the price for 5x the users, 3x the email, 5x the map tiles, 4x the search and location and 2x the space, with unlimited apps, custom domains and live connections.

Unlimited on Pro

∞function calls
∞database reads
∞database writes
∞realtime messages
∞live connections
∞key-value commands
∞apps
∞custom domains
$0egress

A typical app's month on Pro

Users50,000 of 250,0005x room

Emails30,000 of 45,0001.5x room

Function calls2,000,000 of unlimited∞

Launch for free.Grow for $5/mo.

Is Free really free?

Yes. Free needs no credit card and never expires. It holds one app with 1 GB to build and launch it, and your agent can build on it from day one.

When does an app need Standard?

Your app goes live on Free at your-app.substrio.com. When it grows, Standard at $5/month adds custom domains, more apps, email from your own domain and room for more users.

What happens at a limit?

Calls over a monthly allowance are paused until the next month, never billed. When an account's space is full, writes stop and reads continue, so no data is lost. A larger plan raises both.

Why sign in with Google or GitHub?

Your account opens to Free's full 1 GB the first time you sign in with Google, GitHub or another provider. Until then, an account made with an email alone, or by your agent, has 500 MB. An email address costs nothing to make; an account with a provider is far harder to fake.

Do I pay for egress?

You never pay for egress, on any plan. What your users download costs you nothing.

Already flyingon Substrio.

SendJet, AuthJet and MapJet are products of their own, each built and served on the platform you would build on.

SendJetEmail
Transactional email with ready-made templates. One API call to send.
sendjet.io
AuthJetSign-in
Passwords, passkeys, social sign-in, roles and permissions. All built in.
authjet.net
MapJetMaps
Vector maps, address search, geocoding and IP location. One integration.
mapjet.net

Start free.Launch when you're ready.

Free needs no credit card and has no time limit. Your app goes live on Free. Standard is $5/month when it grows.

Start Free See Every Plan