Comparison

Signal Lights vs Lime DJ

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Signal Lights

Simulate traffic lights for indoor games and educational purposes. Customize the duration of each signal to teach children about traffic rules. Ideal for use with ride-on toys.

Highlights
  • Traffic light simulation
  • Customizable signal timing
  • Educational tool for children
  • Indoor game functionality
  • Standard green, amber, red signals
Features
Read full description

Turn your iPhone or iPad into a working traffic signal. Signal Lights runs a real signal cycle on your screen, at whatever timings you set. Prop it up next to a play mat and it directs toy cars. Stand it on a desk and it teaches a child what amber actually means. Hold it up at a campsite gate or a classroom door and it does a job. CHOOSE THE SIGNAL YOU KNOW Signals are not the same everywhere. Some show red and amber together before green, as a get-ready; others go straight from red to green. Both are built in, along with a pedestrian crossing, a flashing amber for caution, and a simple stop-and-go with no amber at all. Pick whichever matches the signal outside your window — you will see it running as a small preview before you choose. SET YOUR OWN TIMINGS Every phase can be adjusted, and each signal remembers what you set. Change your mind and one tap restores the standard timings. TWO WAYS TO RUN IT Automatic runs the cycle on a timer, like a real signal. Manual waits for you — tap to change the light yourself, which is what you want when you are directing people rather than simulating traffic. BUILT TO BE SEEN In portrait you get the full signal head with the countdown inside it. Turn the phone sideways and the lit lamp fills the screen, large enough to read across a hall or a car park. The screen stays awake while the signal runs, and you can dim the app without touching your phone's own brightness. MADE TO BE READABLE BY EVERYONE A colour-blind-safe palette replaces red and green with tones that stay distinct, and turns on lamp names so the signal never depends on colour alone. An outdoor mode brightens everything for use in daylight. VoiceOver announces each change as it happens. PRIVATE BY DESIGN Signal Lights asks for no permissions. It does not use the camera, the microphone, Bluetooth or your local network, and it never connects to the internet. There are no accounts, no advertising, no analytics and no tracking of any kind. Nothing you do in the app leaves your device. It works exactly the same in aeroplane mode. — Signal Lights is a simulator and a teaching tool. It is not a traffic control device and must never be used to direct vehicles or people on public roads.

About

Lime DJ

Features
Read full description

Lime DJ Performer app is for registered users of the Lime DJ platform who wish to manage their song requests on an iOS device. With the Lime DJ Performer App you can: - browse your current and previous shows - change show settings - manage song requests - re-order song queues by dragging and re-arranging - receive push notifications of song requests - create new shows

Screenshots

Signal Lights4 screens
Lime DJ3 screens

Verdict

The call

The clearest difference is price: Lime DJ at Free against Signal Lights's $1.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Lime DJ is free to download; Signal Lights costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
Signal Lights versus Lime DJ: the parameters behind the verdict, then further details
ParameterSignal LightsLime DJ
Price$1.99Free — better
Rating4.2 (12 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings12 — better—
Update frequencyEvery 54 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size6 MB1 MB
Age rating4+17+
DeveloperJose Tomy JosephJames Arrowsmith

In-app purchases

None

Signal Lights

No in-app purchases

None

Lime DJ

No in-app purchases

Questions

Is Signal Lights free?
Signal Lights costs $1.99, with no in-app purchases.
Is Lime DJ free?
Lime DJ is free to download, with no in-app purchases.
Do Signal Lights or Lime DJ have ads?
Neither Signal Lights nor Lime DJ shows ads.

Other comparisons