{"rid":"egress/natapp","card":{"rid":"egress/natapp","eid":"natapp","topic":"egress","slug":"natapp","provider":"NATAPP","url":"https://natapp.cn/","domain":"natapp.cn","category":"udp port forward","tier":"free","verdict":"fails-quota","vorder":6,"grp":"rejected","confidence":"documented","binding":"volume-quota","identity_kind":"email","identity_basis":"stated","needs_card":0,"needs_phone":1,"needs_id":0,"needs_institution":0,"country":null,"crypto":null,"interfaces":"cli","egress_metered":1,"per_object_bytes":null,"retention_days":null,"verified_at":"2026-10-23T00:00:00.000Z","verified_basis":"live","checked_on":"2026-10-23","stale_on":"2026-11-22","n_evidence":1,"usd_month":null,"usd_per_tb_month":null,"summary":"Free tunnel (registered users): permanently free, 1M bandwidth, 2 GB traffic per month, HTTP/TCP/UDP tunnels, random domain or random TCP/UDP port, forced do...","duplicate_of":null,"n_unknown":2},"record":{"topic":"egress","slug":"natapp","provider":"NATAPP","url":"https://natapp.cn/","category":"udp port forward","tier":"free","free_tier":{"stated":"Free tunnel (registered users): permanently free, 1M bandwidth, 2 GB traffic per month, HTTP/TCP/UDP tunnels, random domain or random TCP/UDP port, forced domain/port change at intervals. [translated]","unit":"GB","metered_on":"downloaded-bytes","source_url":"https://natapp.cn/","read_on":"2026-10-23","notes":""},"per_object_cap":{"stated":"not applicable","bytes":null,"source_url":"https://natapp.cn/","notes":""},"retention":{"stated":"not applicable","days":null,"source_url":"https://natapp.cn/","notes":""},"egress":{"terms":"2 GB per month on the free tunnel.; ingress: udp","metered":true,"free_allowance":"2 GB per month on the free tunnel.","price_per_tb":null,"source_url":"https://natapp.cn/"},"interface":["cli"],"interface_detail":"Vendor client for Windows/Linux/macOS plus a web console.","tooling":"vendor client plus frpc-compatible config","chaining":"Not viable as a WG endpoint because the port is not stable.","limits":[{"kind":"volume-quota","value":"2 GB per month","source":"https://natapp.cn/"},{"kind":"per-ip-shaping","value":"1 Mbps","source":"https://natapp.cn/"},{"kind":"request-rate","value":"random port is reassigned at intervals","source":"https://natapp.cn/"}],"limits_note":"","binding":"volume-quota","binding_note":"2 GB per month fails 1 TiB by a factor of about 550, and the 1 Mbps cap would fail it too: 1 Mbps sustained is roughly 0.32 TB per month.","identity_cost":{"kind":"email","detail":"Registration with a Chinese phone number is the normal path; the free tier is labelled 'registered users'.","country":"None"},"reliability_note":"Random public port is reassigned at intervals, so any fixed endpoint stops resolving.","confidence":"documented","confidence_note":"All three numbers are on the vendor's own pricing block. A probe would only confirm the port rotation interval.","evidence":[{"url":"https://natapp.cn/","date":"2026-10-23","proved":"free tunnel is 1 Mbps, 2 GB per month, random port, force-changed at intervals"}],"verdict":"fails-quota","verified_at":"2026-10-23T00:00:00.000Z","price_per_tb_month":"USD 0","notes":"The port-insecurity sentence is the interesting part for UDP: a WG endpoint written into a conf file goes stale without notice. The nodeloc roundup separately warns each free tunnel lasts only 3 days, which contradicts the vendor's 'permanently free' label; the vendor says the tunnel persists but the address changes.","extras":{"wg_path":"inside-udp","wg_detail":"The free tier advertises UDP tunnels on a random port; a WG handshake can be carried, but the port is reassigned at intervals, so a WG endpoint would need reconfiguration each time.","ingress":"udp","volume_tib_month":0.0018,"volume_stated":"2 GB per month on the free tunnel.","bytes_transit":"yes","transit_note":"NATAPP relays through domestic nodes."}},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":2,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[0].value","kind":"limit:volume-quota","num":2,"unit":"GB","per":"month","currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[1].value","kind":"limit:per-ip-shaping","num":null,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"unparsed"},{"path":"$.limits[2].value","kind":"limit:request-rate","num":null,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"unparsed"},{"path":"$.price_per_tb_month","kind":"price-per-tb","num":0,"unit":"TB","per":"month","currency":"USD","usd":0,"fx_date":null,"parse":"ok"}],"unknown":[["$.per_object_cap.stated","not-applicable"],["$.retention.stated","not-applicable"]],"history":[],"drift":[]}