Skip to main content
  1. Home
  2. Phones
  3. News

Digital Trends may earn a commission when you buy through links on our site. Why trust us?

Forget streaks, this free iOS app ties your workouts to a city’s survival

LightsOn mashes workout tracking with city building, and your virtual city only survives if you keep moving.

Add as a preferred source on Google
LightsOn app on iPhone mockup
Pranob Mehrotra / Digital Trends

Ever wish your workout had higher stakes than just closing a ring? A new iOS app called LightsOn links your daily activity to the survival of a virtual city that only stays lit up if you keep moving.

Your activity keeps the city’s lights on

The app assigns you a city with a small population when you first set things up, so the initial energy demand is low. A short walk is enough to cover the daily energy requirement, but as the city grows and more residents move in, you have to put in more effort to keep things going. If you’re not able to meet the demand for an extended period, the city goes dark and residents start moving out.

Beyond this core mechanic, you can adjust tax rates on the city’s residents to accumulate credits, which can be spent on improving infrastructure. Any excess power you generate can also be used towards extras, like a fireworks display, which keeps the residents happy.

A personal project now available for free

In a recent Reddit post, LightsOn’s developer says they created the app to stay accountable to their own workouts, then decided to make it available to other users. The app is free, with no ads or in-app purchases, so you can try it out without making any commitments. According to the developer, LightsOn has no online component, so all activity stays on the device. Everything is processed locally, and there’s no sign-up requirement to start building a city.

Recommended Videos

Most health and fitness apps on the market rely on streaks, badges, or simple daily goals to keep users engaged. LightsOn isn’t the first app to gamify activity this way. Walkr, an older fitness app on Android, uses a similar premise and lets users power a virtual spaceship with their steps. But LightsOn’s city, with its taxes, infrastructure, and population that can grow or empty out, adds more depth, giving users a stronger reason to stay consistent.

Pranob Mehrotra
Pranob is a seasoned tech journalist with over eight years of experience covering consumer technology. His work has been…
Last-minute Samsung leak spoils all of its next-gen foldable phones
Violet Shadow Ultra. Lavender Fold 8. Pink Flip 8. Samsung's entire foldable lineup is now fully in the wild.
Electronics, Phone, Mobile Phone

Roughly five days before the Galaxy Unpacked event, renowned tipster Evan Blass (aka @evleaks) has leaked what appear to be the official promotional images of all the eighth-generation Galaxy Z foldables. 

For those catching up, Samsung is expected to unveil three foldables: the Fold 8 Ultra (successor to the Fold 7), the Fold 8 (with a new, wider, shorter design), and the Flip 8 (successor to the Flip 7). 

Read more
Google’s next Gemini upgrade might not arrive as soon as expected
Even Google's AI needs more time to finish its homework
google-gemini-ai-news-accuracy

Google helped kickstart the modern AI race, but staying ahead has turned out to be far more difficult than joining it. According to a new Bloomberg report, the company has fallen months behind its internal schedule for launching Gemini 3.5 Pro, its next flagship AI model, as engineers continue working to improve one of its biggest weaknesses: coding.

The delay isn't simply about polishing another chatbot. It highlights a broader problem facing Google, where massive engineering teams, multiple product divisions and increasingly strict AI safety requirements are slowing the company's ability to respond to rivals that seem happy to move much faster.

Read more
The iPhone 18 Pro Max camera could open and close like a real lens for better portraits
A leaked factory log just spoiled the iPhone 18 Pro Max’s best camera upgrade
iphone 18 pro

Apple’s next flagship camera may learn how to open and close its eye. A diagnostic log reportedly connected to the iPhone 18 Pro Max contains calibration data for a variable-aperture main camera, according to Notebookcheck.

The internal document was found among files allegedly stolen from Apple supplier Tata Electronics and released by the World Leaks ransomware group. Apple has neither verified the material nor commented on the report. And of course, Apple has neither verified the material nor commented on the report.

Read more