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NATAPP
natapp.cn/UDP port forwardegress/natappJSONcomparereport an errorprovider JSON
- Free allowance
- 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]
- Verdict
- fails: quotathe free allowance is too small to matter
- Cost
- free tier
- Identity
- emailno card, phone required
- Binding limit
- volume-quota2 GB per month
- Evidence
- documented1 source; a first-party page was read and the sentence quoted
- Freshness
- stale on 2026-11-23checked 2026-10-23 (live); stale on 2026-11-23
| 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 |
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| Price | USD 0 |
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| Limits | - volume-quota (binding) 2 GB per month source
- per-ip-shaping 1 Mbps source
- request-rate random port is reassigned at intervals source
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| Binding | volume-quota 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. |
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| Identity | email Registration with a Chinese phone number is the normal path; the free tier is labelled 'registered users'. |
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| Egress | 2 GB per month on the free tunnel.; ingress: udp free allowance: 2 GB per month on the free tunnel. |
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| Interface | cli Vendor client for Windows/Linux/macOS plus a web console. |
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| Tooling | vendor client plus frpc-compatible config |
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| Composes with | Not viable as a WG endpoint because the port is not stable. |
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| Reliability | Random public port is reassigned at intervals, so any fixed endpoint stops resolving. |
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| 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. |
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| Evidence note | documented All three numbers are on the vendor's own pricing block. A probe would only confirm the port rotation interval. |
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| Parsed numbers | - has-free-tier 1
- volume-quota 2 GB / month
- price USD 0
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Evidence 1
| date | source | what it proved |
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| 2026-10-23 | natapp.cn/ | free tunnel is 1 Mbps, 2 GB per month, random port, force-changed at intervals |
More fields 7
| wg path | inside-udp |
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| 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. |
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| ingress | udp |
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| volume tib month | 0.0018 |
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| volume stated | 2 GB per month on the free tunnel. |
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| bytes transit | yes |
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| transit note | NATAPP relays through domestic nodes. |
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Unknown values 2
- per object cap stated: the field does not apply to this kind of offer
- retention stated: the field does not apply to this kind of offer