Azure App Service (F1)

azure.microsoft.com/en-us/pricing/details/app-service/linux/Platform hostcompute/azure-app-service-f1JSON compare report an error provider JSON

Free allowance: F1 Free Shared: 60 CPU minutes a day, 1 GB RAM, 1.00 GB storage, no SLA
Verdict: caveatusable, with a named limit or an unprobed read path
Cost: free tier
Identity: cardcard required, phone required
Binding limit: retention-clampedthe app sleeps after 20 minutes without a direct request; Always On is not available on F1
Evidence: documented2 sources; a first-party page was read and the sentence quoted
Freshness: stale on 2026-11-22checked 2026-10-22 (live); stale on 2026-11-22

Free tier	F1 Free Shared: 60 CPU minutes a day, 1 GB RAM, 1.00 GB storage, no SLA unit minutes; metered on wall-clock; the 512 MB and 5 GB figures in older guides are obsolete
Price	none stated
Limits	request-rate 60 CPU minutes a day shared across the app source retention-clamped (binding) the app sleeps after 20 minutes without a direct request; Always On is not available on F1 source per-object-cap 1 GB RAM and 1.00 GB of storage source the 20-minute idle timeout is stated by Microsoft in two first-party articles; learn.microsoft.com/en-us/azure/app-service/webjobs-execution carries the sentence quoted in evidence
Binding	retention-clamped the 20-minute idle timer is the first wall: 60 CPU-minutes a day is generous for a keepalive, and a keepalive needs a direct request to reset the timer, which a health probe from outside the app supplies
Identity	card an Azure account requires a card and a phone number
Egress	not published on the page read
Retention	the app and its files persist on the plan; no deletion clock is stated
Interface	ssh a public *.azurewebsites.net endpoint; deployment by git, zip or container
Tooling	the Azure CLI, Kudu, git push deployment
Composes with	a public HTTPS endpoint with 60 CPU minutes a day, which is a scheduler and not a host
Reliability	no reliability event recorded
Notes	It is documented first-party at learn.microsoft.com/en-us/azure/app-service/webjobs-execution (read 2026-10-22), which also says a portal visit or a Kudu request does not reset the timer
Parsed numbers	retention-clamped 20 minutes per-object-cap 1 GB

Evidence 2

date	source	what it proved
2026-10-06	azure.microsoft.com/en-us/pricing/details/app-service/linux/	F1 Free Shared is 60 CPU minutes a day with 1 GB RAM and 1.00 GB storage
2026-10-22	learn.microsoft.com/en-us/azure/app-service/webjobs-executio	'Web apps can time out after 20 minutes of inactivity, and only direct requests to the app reset this idle timer. Actions like viewing the portal or accessing the Kudu tools don't keep the app active.'

More fields 7

{
 "shape": null,
 "billing_model": "consumed-cpu",
 "session_cap": {
  "wall_clock_min": null,
  "idle_reap_s": 1200,
  "restart_required": false,
  "note": "20-minute idle timeout: 'Web apps can time out after 20 minutes of inactivity, and only direct requests to the app reset this idle timer. Actions like viewing the portal or accessing the Kudu tools don't keep the app active.'"
 },
 "keep_rate": {
  "value": 0.0,
  "basis": "a free app does not bill",
  "source": "https://azure.microsoft.com/en-us/pricing/details/app-service/linux/"
 },
 "persistent_storage": {
  "included_gib": 1,
  "price_gib_month": "not offered",
  "durability": "app files",
  "survives_stop": true,
  "survives_destroy": false,
  "max_retention": "while the plan exists"
 },
 "network_out": {
  "allow_outbound": true,
  "allow_inbound_listen": true,
  "ports": "HTTPS on the app hostname",
  "static_ip": null,
  "ipv6": null,
  "per_session_bytes": null
 },
 "free_tier_kind": "allowance"
}

Unknown values 3

$.egress.metered egress metering was not published
$.per_object_cap.stated the field does not apply to this kind of offer
$.reliability_note nothing of this kind was observed