Frequently Asked Questions
Short answers to the questions people ask us most.
Here are short answers to common questions. For the full story on each topic, see the feature guides, and if your question is not here, ask support.
Frequently asked questions
What exactly does V2Duo do?
Two main things: it puts your links (Wi-Fi, mobile data, cable and USB tethering) to work together, and it runs V2Ray and Xray configs over them at the same time. On top of that it has DNS mode, a Speed lab and QR scanning.
Is V2Duo a VPN service?
V2Duo does not sell servers or configs. It works with configs you already have. Without any config, you can still use it to combine connections and change DNS.
Will my speed double?
At best, the slower link's speed is added to the faster one's, and you feel it most in multi-part downloads and video. Ping does not go down. The Speed lab in the app shows your real number.
Why is my combined speed lower than my fastest link?
Usually the slow link has too big a share or the config is slow. Tap Measure & balance and pick two or three fast configs.
Which configs are supported?
VLESS (including Reality), VMess, Trojan, Shadowsocks, Hysteria2, subscription links, Clash and Mihomo files, sing-box configs and Xray outbound JSON. TUIC and WireGuard are not supported.
How many configs should I turn on at once?
Two or three fast configs give the best result. Many configs use more memory, and one slow config among them drags speed down.
Does my phone need root?
No. V2Duo uses Android's official features.
Which systems does it run on?
Android 7 and newer, and 64-bit Windows 10 and 11.
Does it use a lot of battery?
The app itself is light and cuts back background work while the screen is off. Keeping Wi-Fi and mobile data on together does need a bit more battery.
Does DNS mode work without a config?
Yes. Without a config, V2Duo works like a DNS changer and combines your links at the same time.
What does the ad-free subscription add?
It only removes all ads. No feature is locked behind a payment.
How do I buy a subscription?
On the pricing page, choose a duration and a coin and send the exact amount shown. The subscription activates a few minutes later. Supported coins: Gram (TON), TRX, SOL, LTC, XRP, XLM, BNB and POL.
How many devices can one key use?
Three devices, Android or Windows.
I lost my key. What can I do?
If you still have the invoice page link, the key is there. Otherwise, send the transaction hash to support.
Are my configs sent to your server?
No. Configs stay encrypted on your own device.
How can I advertise in V2Duo?
Fill in the order form on the advertising page, and we agree on details and price in the ticket.