one sec
7.2#4 in screen time management appsFrom $19.99 a yearAndroidiOSExtensionLinux
Visitone sec vs Opal
What both publish
| Fact | one sec | Opal |
|---|---|---|
| Founded | 2020 | Kenneth Schlenker says he founded Opal in 2020. |
| Privacy | By default, user data remains offline; data is processed only when users choose features such as support contact, subscriptions, feedback, or iCloud sync. | Opal states that detailed app-usage data processed through iOS Screen Time and Android Accessibility Service and Usage Stats remains on the device. |
| Pro features | Pro adds intentional app switching, time tracking, website blocking, strict block sessions, and other intervention types. | Pro adds unlimited recurring sessions, Allow List, uncancellable Hardcore mode and historical Focus Scores. |
| Purpose | one sec interrupts or blocks social media, apps, and websites to help users regain control of their time. | Opal says it protects focus automatically and helps people make technology work for them. |
one sec plans
- one sec pro$6.99 a month
- one sec pro Family Plan$9.99 a month
- one sec pro$19.99 a year
- one sec pro Family Plan$29.99 a year
- one sec pro$99.99, paid once
- one sec pro Family Lifetime$149, paid once
Opal plans
- Opal FreeFree
- FreeFree
- Opal Pro Yearly$8.29 a month
- Pro Yearly$8.29 a month
- Pro Weekly$9.99 a month
- Opal Pro Monthly$19.99 a month
Pick one sec if…
one sec suits people who want prompts or scheduled blocks to interrupt app and website use. Its cross-device support also suits users who move between iOS or Android devices and desktop browsers.
Pick Opal if…
Opal suits people who want to block selected apps, set timed focus sessions, and review focus-related signals. Its free plan offers a starting point, while Pro adds unlimited rules and Opal Score history.