Warden
How we compare, and our bias
We make Warden, which competes with both, so read this as one maker's view of two others. Every feature below comes from each provider's own website as reviewed in September 2026. We have not scored either app, and features change, so check their current pages before you decide.
one sec in short
one sec's site describes interruptions before selected apps open, including a breathing pause and other actions, plus scheduled app blocking, time limits and intention-related tools. Its centre of gravity is the second before an app appears: the tap you make without deciding to.
Reference: one sec
Opal in short
Opal's site describes Focus Rules, a Focus Timer, an Opal Score and milestone rewards, with Focus Reports and progress insights. It lists iPhone, Mac and Android versions, and its Deep Focus option restricts ending a session early. Its centre of gravity is the session: a planned stretch of time with the distractions closed.
Reference: Opal
The differences that matter
- The moment: one sec acts on each opening; Opal acts on a planned block of time.
- The feel: a pause asks you to decide again; a session has already decided for you.
- Stopping early: Opal's Deep Focus restricts ending a session; a pause, by design, lets you continue after it.
- Feedback: Opal describes scores, reports and milestones. Check one sec's current site for what it reports.
Which one suits whom
Pick one sec if most of your screen time starts as an unthinking tap and a moment of awareness is usually enough to stop. Pick Opal if you lose whole stretches of the day, want the time protected in advance, and like seeing progress.
If you have tried both approaches and still override them, the missing piece may be another person. In Warden, a trusted person can approve early access for the rules you choose, so ending a block early is a request rather than a tap.
Example: the tap on the train and the lost afternoon
Picture two habits in one person. On the morning train, Instagram opens before the doors close, purely from reflex, and a pause before it loads is often enough to put the phone back. In the afternoon, a planned hour of writing turns into an hour of short videos, and a pause there gets tapped through every time.
The reflex is a pause problem and the afternoon is a session problem. Match the tool to the moment, try it for a week, and judge it by the moment it was meant to fix.
