The difference between a free VPN and a paid one rarely comes down to whether it connects — it shows up after you're connected: how much your speed is throttled, which day the allowance runs dry, and why a few extra pop-ups keep appearing in the client. This article takes apart where a free plan's costs come from, compares privacy, stability and peak-hour performance, and ends with one concrete question: when is ¥9.9 a month worth it?
Where Free Plans' Costs Come From
A free plan isn't cost-free; it just moves the cost off your bill and into other places. There are four common sources.
- Bandwidth and traffic: international bandwidth is billed by volume. Free plans either hand you a tiny allowance, cap your speed, or make you queue at peak times.
- Ads and promo slots: ad placements and pop-ups inside the client, plus referral parameters written into links, are all revenue sources.
- The value of connection data: some free clients build user profiles by analyzing the domains you visit, or resell their exit capacity to third parties.
- Oversold servers: far more users are packed onto one server than it can carry — the more people, the smaller each person's share.
Of these four costs, the first two are visible at a glance; the last two can only be inferred from privacy terms and client behavior. The test is plain: if something doesn't charge money, ask what keeps it alive. Ads, data, and treating users as test traffic — none of these require you to pay, but all of them require you to give something else up. A paid plan covers its costs through subscriptions, so its revenue and your payment are the same thing — a simpler set of incentives.
A Point-by-Point Comparison Across Five Dimensions
Put both sides in the same table and the differences get much clearer. The left column shows what free plans commonly do; the right shows VPNDQ's paid plan.
| Dimension | Typical free plan | Paid plan (VPNDQ as an example) |
|---|---|---|
| Data allowance | Tiny allowance, resets daily or monthly — once it's gone, you wait | Monthly plans from ¥9.9 include 60GB, reset monthly; data packs from ¥158 give 300GB that never expires |
| Speed | Queuing at peak times, often throttled to text-only browsing | No speed tiers — actual performance depends on the route type you pick |
| Route types | Mostly public direct-connect nodes with high user density | Direct, relay and IEPL dedicated lines side by side — 240+ routes covering 120+ countries |
| Privacy and data handling | Some clients embed ads and promo slots; data handling is opaque | Privacy policy states what is logged and for how long; browsing content is not logged |
| Simultaneous devices | Usually capped at a set number | No device limit |
| Support and refunds | Most offer no usable support channel | 7-day no-questions-asked refund |
The table deliberately has no row for which side is faster. Speed depends on your region, the route you choose and the time of day — any speed promise that ignores those three isn't worth trusting. What's actually worth comparing: under the same usage intensity, which side burns through its allowance first, and which one drops first at peak hours.
Why Speed Drops First at Peak Hours
Between 8 and 11 p.m., international routes are at their most congested — and that's when free plans slow down the most. The cause isn't the client, but how bandwidth is allocated.
Direct, Relay and Dedicated Lines: Where the Cost Difference Comes From
- Direct: the client connects straight to an overseas data center entry point over public international transit. Shortest path, lowest cost — but it competes with all public traffic for the same exit, so packet loss and jitter are obvious at peak hours.
- Relay: you connect to a nearby entry point first, which forwards traffic to an overseas exit. The entry point can be route-optimized, but if it's oversold, it congests just the same.
- IEPL dedicated line: a carrier-grade international Ethernet private line with relatively fixed bandwidth and path that doesn't compete with public traffic. It costs more and usually only appears in paid plans.
Free plans rarely spend budget on dedicated-line bandwidth; their nodes are mostly public direct connections, and user density is high. Stack those three factors together and they're the first to fall apart at peak hours. Another easily overlooked effect is the exit IP: when a large number of users share one exit address, target sites flag it as a high-risk source, which brings CAPTCHAs, rate limiting and outright blocks. That's not superstition — it's the inevitable result of a shared exit.
Clients and Protocols: The Extras Inside Free Clients
The protocol itself doesn't determine privacy
Common protocols include Shadowsocks, VMess, Trojan, VLESS, Hysteria2 and TUIC. They solve how traffic is disguised and transported — not who runs the exit or what gets logged. Hysteria2 and TUIC are built on QUIC and hold up better on lossy networks; Trojan and VLESS focus more on disguising traffic as ordinary HTTPS requests. No matter how good the protocol is, if someone else operates the exit, your privacy depends on how they run it.
Subscription Links and Routing Rules
Paid services usually give you a subscription link; the client pulls the node list on a schedule, so node changes don't require manual config edits. Free clients often use subscriptions too, but some attach tracking parameters to the subscription URL or write in their own routing rules. Routing rules are a normal feature — they decide by domain or IP which traffic goes through the route and which connects directly — but who writes them and what goes into them is worth opening the client to check.
How to Check for DNS Leaks
A proxy usually only takes over TCP and UDP traffic. If DNS queries still go to a resolver on your local network, you get a DNS leak: the queries are exposed to the local network, and domains may resolve to addresses that don't match your route — showing up as a connected status with pages that won't load, or streaming unlocks failing. One command shows it:
nslookup -type=TXT whoami.ds.akahelp.netThe ip field in the response is the address of the server that actually performed the lookup. If it belongs to your local ISP, DNS isn't going through the route; if it matches your selected region, DNS is going through too. An even more direct check: open any IP geolocation page and see whether the exit IP matches your chosen region, then switch routes and check again to see if it follows.
Tip
Per-app mode that only proxies your browser is not the same as a global proxy — other apps' traffic still goes over the local network. If you use per-app mode, it's worth confirming separately that the apps you need routed are actually in the list.
Note
If a client asks you to install a root certificate, stop and think it through. Installing a root certificate means it can decrypt your HTTPS traffic — routine on a corporate network, but unnecessary on a personal device.
When ¥9.9 a Month Is Worth It
- ¥9.9 Starting monthly plan, 60GB included
- 120+ Countries and regions covered
- 240+ Routes, including IEPL dedicated lines
- 7 days No-questions-asked refund
The decision comes down to how often you use it and what for:
- You visit international sites, look things up or use AI tools every day: the time saved is worth far more than ¥9.9.
- You need reliable video streaming or large file transfers: data allowance and route type decide the experience, and a free quota usually won't last one episode.
- You use it once or twice a week for text lookups only: start with a free allowance or trial — no rush to pay.
- You sign into email, payments or work systems: don't do any of that over a free exit of unknown origin.
Choosing a data plan: the ¥9.9 monthly subscription includes 60GB, enough for everyday browsing and light video; heavier users can pick ¥18/250GB or ¥28/500GB. If you only use it occasionally and don't want to be pushed along by a monthly reset, a data pack fits better — ¥158/300GB, use it until it's gone, never expires. On devices, VPNDQ has no limit on simultaneous connections, so your computer, tablet and router can all stay connected. There's one more safeguard before you pay: a 7-day no-questions-asked refund, which keeps the cost of being wrong very low. You can compare the exact tiers on the pricing page, and see route distribution on the global nodes page.
A Three-Step Self-Test: Is This Plan Worth Paying For?
Skip the marketing page — run these three steps yourself and the answer will be clear.
- ✅ The exit IP matches your selected region, and its location follows when you switch routes.
- ✅ DNS lookups go through the route's exit — no local ISP resolver shows up in the test results.
- ✅ Tested over several peak-hour evenings, pages and video don't constantly buffer and the speed drop stays within an acceptable range.
- ❌ The client asks you to install extra components, change your system DNS or replace your browser homepage.
- ❌ Once the free allowance runs out, the only way to get more time is watching ads — and there's no clear paid exit path.
- ❌ The privacy policy says nothing about what is logged or how long it's kept.
Three Common Questions About Free Plans
Can I use a free plan in a pinch?
Yes, but keep it to situations where you're not signing in: looking up a public fact, reading a document. Anything involving email, payments or work systems should wait until you're on a trusted network or your own route.
Is a paid plan always more secure?
Not necessarily. Paying only changes the business model from ads and data to subscriptions; what still matters is what the privacy policy says, what the client does, and who owns the routes. The verifiable parts are concrete: does the exit IP match your selected region, does DNS go through the route, are the refund terms clear. VPNDQ offers a 7-day no-questions-asked refund, so there's a way back if you judge wrong.
Why do some free clients seem faster?
User numbers, time of day and node location all affect the result. A newly launched node or one with few users can genuinely be faster than a paid node for a while; as users pile in, that same node gets diluted. So a single speed test proves nothing — several consecutive peak-hour tests are what's worth reading.
Summary: Do the Math Before You Decide to Pay
The difference between a free VPN and a paid one comes down to three things: how much data you're willing to use, how much uncertainty you're willing to carry, and who maintains the route. Free plans work, but their costs hide in speed caps, allowances, ad slots and data terms; paid plans put the cost on the price tag and give you predictable speed, clear route types and a refund path in return.
If you open it every day, ¥9.9 a month is an easy calculation. If it's only for the occasional emergency, start with a free allowance and consider upgrading once it starts eating your time. New to the client? Start with the quick start guide, import your subscription step by step, then test.