Raff Apps features and limits - Raff

_{Updated October 19, 2026} The facts about Raff Apps in one place.

App types

Type	Address	Scaling	Custom domains	Previews
Web	`https://<name>-<account id>.onraff.com`	Fixed, autoscaling, scale to zero	Yes	Yes, from GitHub
Private	`<name>.<namespace>.svc.cluster.local`	Fixed; autoscaling with scale to zero	No	No
Worker	None	Fixed	No	No
Cron	None	None. Concurrency decides if runs overlap	No	No
Job	None	None. One run per Run now	No	No

Sources

Source	What Raff does
GitHub	Builds the repository’s Dockerfile, or detects the stack (Node.js, Python, Go, Ruby, PHP, Java and more) and builds it. Every push to the branch deploys.
Docker image	Pulls a public image and runs it. Nothing is built.
Template	Runs one of 16 ready apps. See Raff Apps templates.
Docker Compose	Proposes one app per service in a pasted compose file.

Sizes

Size	vCPU	Memory	Temporary disk	Previews per app
Micro	0.25	512 MB	2 GB	2
Starter	0.5	1 GB	5 GB	3
Standard	1	2 GB	10 GB	5
Pro	2	4 GB	20 GB	8
Pro Max	4	8 GB	40 GB	10
Scale	8	16 GB	80 GB	10

Limits

Item	Limit	Notes
Region	US East
Instances per app	6	Fixed instances or the autoscaling maximum. Contact support to raise.
Instances per account	20	Web, private and worker apps. Paused, failed and not yet deployed apps count too. Contact support to raise.
App name in the address	50 characters	A short suffix is added when the name is taken in your account
Default port	8080	Web apps get the port in `PORT`
Reserved ports	8008, 8012, 8013, 8022, 9090, 9091	Web apps and private apps that scale to zero
Build time	15 minutes
Repository size	100 MB	GitHub
Time to turn ready	5 minutes, or 10 minutes with a health check	Per deploy
Request duration	5 minutes	Web apps
Sleep after	About 15 minutes without requests	Apps with scale to zero
Outbound TCP port 25	Blocked	Use port 587 or 465, or an HTTP API
Environment variable names	253 characters	Letters, digits and underscores, not starting with a digit
Database link prefix	64 characters
Custom domains	Web apps	Error after 24 hours without working DNS
DNS checks	Every 30 seconds	Check now: 5 times in 10 minutes
Previews	Per size, table above	Web apps from GitHub. A preview runs on Micro and is removed 7 days after its last push. Forks are skipped.
Free database	1 per account	Pauses after 7 days without connections
Saved shell commands	50 per app

History kept

Item	Kept
Runtime logs	14 days
Metrics	Views of the last 1 hour, 6 hours, 24 hours or 7 days
Activity timeline	30 days
Cron and job runs	30 days

Template minimum sizes

Template	Smallest size
Metabase	Standard (1 vCPU · 2 GB)
LibreTranslate	Standard (1 vCPU · 2 GB)
Stirling-PDF	Starter (0.5 vCPU · 1 GB)
Every other template	Micro (0.25 vCPU · 512 MB)

Included with every app

Automatic HTTPS for the onraff.com address and custom domains.
Build logs, runtime logs, metrics (CPU, memory, instances, and requests for web apps), a shell inside running instances and an activity timeline.
Deploy history with rollback to any deploy that went live.
Encrypted environment variables.
A spend cap, on by default at $50 a month.

See also

Pricing

Sizes, databases and the spend cap.

API Reference

Endpoints for Raff Apps.

Last modified on October 19, 2026