Best Focus & Screen Time Apps (2026): Opal vs One Sec vs ScreenZen vs focuss

How to choose

Focus apps mostly differ in one thing: what happens when you try to open a blocked app. Some show a short pause, some show a reminder, and some refuse until a timer ends. Ask yourself honestly how you behave when a limit appears. If you always tap past it, you need more friction.

Opal

Opal focuses on scheduled sessions and app blocking with a polished design and detailed screen time reports. It offers stricter session modes on its paid plan. Good for people who like schedules and statistics.

one sec

one sec adds a short breathing pause before a chosen app opens, then asks whether you still want to continue. It is gentle and research-inspired, and works best for mild habits rather than strong compulsions.

ScreenZen

ScreenZen uses wait-to-open delays and open limits, and is known for a generous free tier. It is a solid choice if you want friction without paying.

focuss

focuss shields chosen apps during strict lock sessions that cannot be cancelled with one tap. Exits go through a 15-minute cooldown, an accountability partner's approval, or a typing challenge. It also has daily per-app allowances, and Brick, a grumpy mascot who reacts to every attempt. Focus data stays on the device, with no account required. Pro is $4.99/month, $39/year with a 7-day trial, or $69 lifetime.

Quick verdict

Match the tool to your habit strength.

• Mild habit, want a nudge: a pause-before-open app.
• Want schedules and reports: a session scheduler.
• Always break your own limits: a strict lock with real exit friction, like focuss.