An app for the habit,
not just the hours.

An honest answer first: "phone addiction" isn't a formal diagnosis. Neither the DSM-5 nor the ICD-11 recognizes it as an official disorder. When the DSM-5 was last updated, gambling disorder was added as a behavioral addiction, but researchers concluded there wasn't yet enough evidence to add problematic phone or internet use alongside it.

That doesn't make the pattern imaginary. Validated research tools, most notably the Smartphone Addiction Scale, reliably measure compulsive use and distinguish heavy users from typical ones with over 85 percent accuracy. The label is contested. The behavior it describes is well documented.

The Smartphone Addiction Scale measures six specific dimensions. Daily-life disturbance from phone use, anticipating your phone even when you're not using it, withdrawal or anxiety without it, a relationship shift toward online interaction over in-person ones, overuse beyond what you intended, and needing more use over time for the same relief.

Nomophobia is a related but separate pattern. It's specifically the fear or anxiety of being without your phone, distinct from the excessive use itself. A meta-analysis found roughly 20 percent of people show severe nomophobia symptoms, with another 50 percent showing moderate symptoms.

Phantom vibration syndrome is the most common physical tell. Around 89 percent of people in one study reported feeling their phone vibrate when it hadn't, a learned reflex from the brain anticipating a notification that isn't there.

The checking becomes automatic before you decide to do it. Every notification, like, or message delivers a small, unpredictable reward, and unpredictable rewards are what train a habit loop most strongly. Over time the brain starts checking in anticipation of the reward, not in response to an actual need.

That's why relying on noticing the urge doesn't hold up. By the time you notice you're reaching for the phone, the automatic part of the loop has usually already run. Removing the option, rather than trying to catch yourself mid-reach, is what actually interrupts it.

No session to remember to start. You choose the apps that pull you back in once, and they stay blocked every day by default, which matters more than a timer for a pattern that shows up throughout the day, not just during set sessions.

Still reachable for something real. One 5-minute emergency unlock a day covers a genuine need without reopening the loop for the rest of the day.

Fella is a blocking tool, not a clinical treatment. If compulsive phone use is significantly affecting your life, a validated tool like the Smartphone Addiction Scale or a conversation with a professional is a more appropriate next step than an app alone.