iPhone Screenshots


Using real-time signal information and position information from GPS and cell signals, EnLighten notices when drivers stop at a red light. It then uses Connected Signals' proprietary technology to predict when that light will change. If it can predict, it tells them. Then, just before the light turns green, a chime warns the driver to get ready.

EnLighten currently works in selected cities, a list of which can be seen at:
More cities are being added as quickly as possible.

Knowing how much time is available can keep drivers from starting distracting tasks shortly before a light changes and they need to drive. The chime that sounds shortly before the light changes also helps avoid situations where a car darts into an intersection after being honked at by another driver.

Please be aware that continued use of GPS running in the background can dramatically decrease battery life. EnLighten minimizes use of GPS when you are not actively driving, or when you are not in a covered area.

Send us questions and comments at:

What's New

Version 5.0.1

We have fixed some minor bugs that were reported after the release of the new version.

Ratings and Reviews

Cool app but doesn’t work in New York City ..


I’m very disappointed. They should update this app and include more cities and more coverage

Not perfect but a great start


Today is the first day this went active in walnut creek so we went to go test it out by driving around the city. I am impressed with the concept and I can imagine this being very useful for smoothing out traffic flow once it's refined. (And even more so if we all get self driving cars)

That said, there were a few day 1 issues:

The count down timer often isn't accurate and often resets. For example it will countdown to 5 seconds and reset to 23 seconds so you end up waiting longer than you expected. Additionally, sometimes the countdown doesn't show up at all and it just turns green; or the app doesn't chime 5 seconds prior to the light change and just remains silent and turns green.

At one light, we also got the countdown for the light that was perpendicular to us, though that may be a gps issue rather than the app's fault.

Finally it might be more intuitive if the signal on the screen turned green rather than white.

TIP: if your phone automatically syncs to your car's Bluetooth, remember to turn on the radio otherwise you won't get the audio prompts.

Works just fine.. if you read the instructions.


It's amazing how many people are allergic to reading, particularly the ones that heard about this through a certain gadget blog.

"Where does this work?"
For now, a handful of cities. Probably not yours.

"How do I connect it to my BMW?"
Read the instructions. If you don't have ConnectedDrive Services, it's not going to work.

"It wants access to my location even when it's not running!"
Uh, yeah, because "running" means it's being actively displayed on your screen. Some folks want to use another app while this is in the background. If you want to terminate the app, just swipe it away... assuming you don't know how to do that, double-click your home button.

Frankly, it's not vey useful at the moment, because most cities aren't sharing the signal data yet. But it works in a city I drive through occasionally and it does what it says it does, so I'm not going to hold that against the app.


Connected Signals, Inc.
67.5 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad 2 Wi-Fi + 3G, iPad Wi‑Fi + Cellular (3rd generation), iPad Wi-Fi + Cellular (4th generation), iPad mini Wi-Fi + Cellular, iPad Air Wi-Fi + Cellular, iPad mini 2 Wi-Fi + Cellular, iPad Air 2 Wi-Fi + Cellular, iPad mini 3 Wi-Fi + Cellular, iPad mini 4 Wi-Fi + Cellular, 12.9-inch iPad Pro Wi-Fi + Cellular, 9.7-inch iPad Pro Wi-Fi + Cellular, iPad Wi-Fi + Cellular (5th generation), 12.9-inch iPad Pro Wi‑Fi + Cellular (2nd generation), and 10.5-inch iPad Pro Wi‑Fi + Cellular.
Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© Connected Signals, Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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