# NATAPP

> natapp.cn | Egress and tunnels; 1 record: free tier, limits, identity cost and evidence.

HTML https://fshy.ajam.dev/p/natapp/ | JSON https://fshy.ajam.dev/api/v1/entity/natapp.json | how to read a record: https://fshy.ajam.dev/llms-full.txt

## NATAPP

- `egress/natapp` | fails-quota | evidence documented | binding volume-quota | category udp port forward | tier free
- needs card no, phone yes, ID no, institution no | verified 2026-10-23 (live) | stale on 2026-11-23
- url https://natapp.cn/
- price USD 0
- free tier: 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 | read on: 2026-10-23 | source: [1]
- per-object cap: not applicable | source: [1]
- retention: not applicable | source: [1]
- egress: 2 GB per month on the free tunnel.; ingress: udp | metered: yes | free allowance: 2 GB per month on the free tunnel. | source: [1]
- identity: email | detail: Registration with a Chinese phone number is the normal path; the free tier is labelled 'registered users'. | country: None
- interface: cli
- limits:
  - volume-quota (binding): 2 GB per month [1]
  - per-ip-shaping: 1 Mbps [1]
  - request-rate: random port is reassigned at intervals [1]
- 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.
- interface detail: Vendor client for Windows/Linux/macOS plus a web console.
- tooling: vendor client plus frpc-compatible config
- composes with: Not viable as a WG endpoint because the port is not stable.
- reliability: Random public port is reassigned at intervals, so any fixed endpoint stops resolving.
- 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.
- evidence note: All three numbers are on the vendor's own pricing block. A probe would only confirm the port rotation interval.
- 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.
- evidence:
  - [1] 2026-10-23: free tunnel is 1 Mbps, 2 GB per month, random port, force-changed at intervals
- sources:
  - [1] https://natapp.cn/