VPN vs proxy line providers vs accelerators

All three do the same basic thing: send your traffic, encrypted, to a server in another region, which then reaches the destination for you. Where they differ is the layer at which that relay happens and who configures it.

• VPN service: the provider supplies the account, the servers and the client, and normally the whole device takes the route. What a VPN is and how to connect covers the basics.
• Proxy line provider (jichang): community slang for a seller of shared proxy subscriptions. The seller hands you a subscription link holding a list of nodes, and you import it into a third-party client such as Clash, Shadowrocket or a v2ray client.
• Accelerator: a dedicated app that sends only selected games or applications over an optimised route and leaves everything else alone. A “return-to-China accelerator” is the variant aimed at users abroad, covering mainland video, music and game apps.

• How it works: the client builds a tunnel at system level and by default all traffic uses it; split routing in the client or on a router keeps local sites direct.
• Strengths: little to configure — install, log in or scan a code; a clear party to contact when something breaks; usually a wide range of supported devices.
• Weaknesses: usually fewer exit locations than a proxy line provider; a service built on one or two protocols leaves you no alternative on a heavily restricted network.
• Suits: people who would rather not study rules and nodes, anyone setting things up for family or colleagues, and anyone who needs a router or a TV covered.

• How it works: the link returns a list of proxy nodes that the client refreshes on a schedule. Traffic is split by rules, and a rule file decides what goes direct and what goes through which node.
• Strengths: many nodes and regions, a wide price range, and very fine-grained rules. Someone who knows the tooling can make it fit exactly.
• Weaknesses: you find and configure the client yourself, and clients accept different subscription formats; a bad rule shows up as “some sites will not load” and is yours to debug; on a router you install and maintain the plug-in yourself.
• Worth knowing: nodes are mostly rented machines or relay lines, and each exit is shared by many subscribers. Sellers vary a great deal in size and track record, so it pays to watch one for a while before committing.
• Suits: people willing to learn rule configuration, who value node count and price, and who mainly use their own phone and computer.

• How it works: the app carries a list of supported titles. The ones you select take the accelerated route and all other traffic uses the local network as usual.
• Strengths: the simplest of the three — pick the game, press the button. Routes are tuned for the listed titles, so latency is often good.
• Weaknesses: nothing outside the list is covered, and many products serve one direction only. A game accelerator handles overseas game servers; a return-to-China accelerator handles mainland apps.
• Worth knowing: with a free accelerator, ask what pays for it. How to Recognise a Risky VPN App lists the checks.
• Suits: one game or one video app. Compared with a VPN the principle is the same — traffic leaves from another region — and the difference is scope: an accelerator covers particular apps, a VPN covers the device.

• Scope: VPN, the whole device; proxy line provider, whatever the rules say, from everything to a subset; accelerator, the listed apps only.
• Effort to start: accelerator lowest, VPN next, proxy line provider highest because you configure the client and the rules.
• Client: a VPN uses the one the provider names; a proxy line provider uses a third-party client of your choice; an accelerator uses its own app.
• Routers and TVs: with a VPN it depends on whether the provider supports routers; with a proxy line provider you install and maintain a router plug-in; most accelerators do not reach them, though a few sell dedicated hardware.
• Who to ask when it breaks: the provider, for a VPN or an accelerator; for a proxy line provider, the seller for the line itself, and mostly yourself or the community for client and rule problems.

• Shared exits: on any shared service, a VPN included, many people use the same exit IP. Heavy use can bring extra verification prompts or trigger risk controls at login. If account safety matters, favour stable exits on machines the provider runs itself.
• Operators that disappear: sellers do shut down, rename or stop serving without notice, more often the small and recently founded ones. Check how long the operator has run, whether contact details are public, and whether support actually replies.
• Annual prepayment: the longer the term you pay for up front, the more you lose if the service stops. Start with a trial or a month, extend once it has proved itself, and read the refund terms first.
• Leaked subscription links: the link is your account. Keep it out of group chats and away from third-party “subscription converter” sites; the subscription link guide explains why.
• Clients of unknown origin: download only from the official store, the project’s own site or the address your provider gives.

• One online game, or one video app: an accelerator.
• Your own phone and computer, a taste for rules, and lots of nodes: a proxy line provider.
• A household, older relatives, an office, or TVs, consoles and a NAS: a VPN service with a router option.
• Abroad and needing mainland video, music and banking: a device-wide route with a genuine mainland exit — see How to Choose a China VPN.
• A company laptop without admin rights: a web proxy that needs only a browser extension — see What a Web Proxy Is and When to Use One.
• LeoTun is in the VPN-service group: one account with six connection methods (router, OpenVPN, Cisco, Hiddify, web proxy, private network), both directions on the same account by choosing a different region, and clients that all come from vendors and open-source communities. There is a 4-hour free trial, and refunds are available at any time in proportion to use. Which connection method fits which scenario matches methods to situations, and How we differ from other VPNs compares the product types point by point.