Updated November 15, 2026.
Opal and one sec both help you spend less time in the apps that pull you in, but they work differently. one sec puts a short pause, like a breathing exercise, between you and an app before it opens. Opal blocks the apps you pick for the hours you set or once you hit a limit. Here's how they compare.
At a glance
- How it works. Opal: blocks the apps you choose during a Focus Session, on a schedule, or once a daily app limit runs out. one sec: shows an intervention (breathing, typing, rotating the phone) before a chosen app or site opens. one sec says it delays access rather than blocking apps completely.
- Platforms. Opal: iPhone and iPad (App Store, iOS 18 or later) and Android (Google Play). one sec: iPhone, iPad, Mac, Android, and browser extensions.
- Price. Opal: free to download, with Opal PRO as an in-app purchase. Prices depend on your country. one sec: free for one app. one sec Pro on the US App Store is $6.99 a month, $19.99 a year or $99.99 lifetime, and there's a family plan.
- Schedules. Opal: yes, on iPhone (Calendar) and Android (Schedules). one sec: yes, with Pro.
- Can't-cancel mode. Opal: on iPhone, Deep Focus is a level you can't cancel or bypass. one sec: not described on one sec's site.
- Websites. Opal: on iPhone, you can block websites as well as apps. The Android listing doesn't mention websites. one sec: yes, through browser extensions and a Safari extension.
- Reports. Opal: Focus Score and a Focus Report on iPhone; weekly reports on Android. one sec: app usage, estimated time saved, and intention and mood tracking.
How they differ
A pause or a Rule. one sec is built around friction: after the pause you can still open the app, and for many people that moment is enough. Opal is built around Rules: during a session or a schedule, the app stays blocked until it ends, and on iPhone, Deep Focus can't be cancelled.
Free plan. one sec's free plan covers one app. Opal is free to download, with Opal PRO as an in-app purchase.
Where they run. Both are on iPhone, iPad and Android. one sec also covers Mac and desktop browsers.
When one sec is the better pick
- You want a nudge, not a lock: a moment to decide, with the app still a tap away.
- You mostly struggle with one app and want to stay free.
- You want coverage in a desktop browser.
When Opal is the better pick
- You want apps blocked for set hours, like work, homework or bedtime, without deciding each time.
- You want a session you can't cancel (Deep Focus on iPhone).
- You want daily app limits across many apps and a Focus Score.
Try Opal
Opal is free to download on the App Store and Google Play, with Opal PRO as an in-app purchase. See plans and pricing.
Questions
Do Opal and one sec have free plans?
Both are free to download. one sec's free plan covers one app. Opal offers Opal PRO as an in-app purchase.
Does Opal work on Android?
Yes. Opal is on Google Play as well as the App Store.
Sources
Read November 15, 2026.
- one sec on the App Store (US)
- one sec platforms
- What's included in one sec Pro
Opal facts come from Opal's listings on the App Store and Google Play, read November 15, 2026.
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