Anyway to throttle a 4G LTE cellular data high speed connection on purpose? (iOS)

[pcslookout]

I want to test to see if a certain app still works on 2G (128 Kbps) speeds.

I know I could use all my high speed data quickly but I don't want to do that.

 

[Red Storm]

Would it be easier to do this via wifi and a router?

 

[Oyeve]

Nevermind. Didnt catch the ios only bit.

 

[manly]

Seems like there's a UI for this if your carrier does not do VoIP?

https://www.cultofmac.com/421369/how-and-why-to-disable-lte-on-your-iphone/