The setup in order
Open the App Store and search for the client by name. Check the publisher shown under the title and the date of the latest update before you tap get.
Start the bot in Telegram and request the trial. The link comes back in about a minute.
Long-press the link in the chat, copy it, and open the client.
Add the link as a subscription, pasting it from the clipboard. The client then lists the five locations: Amsterdam, Frankfurt, Singapore, Dubai and London.
Choose one and switch on. iOS asks permission to add a configuration; allow it, and a small VPN symbol appears at the top of the screen.
What to know about the App Store
Which apps you can find depends on the store for your country, and those listings change without notice. If the first client is missing, try the second. If both are missing, the separate page on getting a client without the store explains your options. Do not install a profile from a website just because a page says it is a free VPN: a configuration profile can change how the phone treats your traffic.
Do not go by the system's built-in VPN settings alone. The built-in VPN screen in iOS supports standard types such as IKEv2, IPsec and L2TP, and a VLESS subscription link is not one of them. A client is what turns the link into a working tunnel.
Check that it is on
Before connecting, open a page that shows your address and note it. Connect, reload that page, and the address and country should differ. Do the same test on the hostel Wi-Fi, on Jio or Airtel data and, if you can, on the college network. A tunnel that works at home and not in the college can still be right; the network may be dropping this kind of traffic.
Switch the client off when you do not need it, since a tunnel on all day uses some battery.
Keeping the link private, and the payment
The subscription link is your access. Anyone who gets it can use your plan, and it sits in your Telegram chat, so lock the app and do not forward the message. If it leaks, ask the bot again from your Telegram account.
After ten days free, you can continue by paying in the bot with cryptocurrency such as USDT; neither cards nor UPI work, and nothing renews by itself. Current prices sit on the home page and inside the bot. We keep no logs. This page gives security advice and we sell a VPN, so the points are checks you can make on the phone itself; an AI model produced the draft, which the editors then compared with how the service works. What you may do online depends on the country you are in and on each site's terms, both of which change, and the responsibility is yours.