Install Surge once
Surge is the routing layer. You only need to install it and create one profile for Firefly.
iOS Guide
On iOS, Firefly is easiest through one clean Surge profile.
iOS does not expose the same host-editing flow as Android or desktop, so the most reliable route is a small Surge profile that maps both Growtopia domains to the Firefly IP.
Recommended app: Surge
Uses local VPN profile
Fast switch back to official
Paste the Firefly block
Add the two Growtopia domains under the Host section so both domains resolve to the Firefly IP.
Enable the profile and play
Once the profile is active, launch Growtopia normally. Disable it later when you want to revert.
Surge profile setup
Surge keeps the iOS setup small and readable: make one profile, paste one host block, enable it, then open Growtopia.
Install Surge
Download Surge from the App Store. If you already use another iOS routing tool, the same Firefly host mapping can usually be adapted there too.
Create a Firefly profile
Create a new profile and name it something clear, such as Firefly Server, so it is easy to enable and disable later.
Paste the host mapping into the profile
Add the block below under the Host section so both Growtopia domains resolve to the Firefly IP instead of the official server.
[Host]
www.growtopia1.com = 103.150.227.49
www.growtopia2.com = 103.150.227.49
Enable the profile and launch Growtopia
Turn the profile on, accept the VPN configuration prompt if iOS asks, and then open Growtopia. If the block was entered correctly, the game should resolve to Firefly.
Note: Surge is a paid tool, but it remains the cleanest iOS recommendation here because the setup is simple and easy to reverse when needed.