How to Get Speed Limit Alerts While Driving on iPhone

TL;DR

SpeedTrace can show the posted speed limit for the road you're on and give gentle voice and sound alerts when you exceed it — a fully optional feature, and with it turned off the app uses no network at all.

Steps

In SpeedTrace, enable speed limit alerts.
See the posted limit for your current road.
Get gentle voice and sound alerts when you exceed it.
Prefer no network? Leave it off — the app then uses no network at all.

Why it works this way

A quiet nudge when you drift over the limit is a genuinely useful safety aid, so SpeedTrace offers the posted limit and gentle over-speed alerts. But it respects that not everyone wants a networked feature running: it’s fully optional, and with it off the app uses no network whatsoever — keeping the privacy-first, offline default intact for those who want it.

Tips & edge cases

Gentle by design — alerts nudge, they don’t nag.
Fully optional — off means zero network use.
Keep your eyes on the road — alerts are an aid, not a substitute for attention.

FAQ

Does it show the road’s speed limit? Yes. SpeedTrace can display the posted speed limit for the road you’re on.

How does it warn me? With gentle voice and sound alerts when you go over — and it’s fully optional.

Does this feature use the network? Only when enabled. Leave it off and SpeedTrace uses no network at all.