# one sec

> Screen time app that adds a pause before distracting apps open

one sec is a screen time app that inserts a short pause, such as a breathing exercise, before a chosen app or website opens, so that opening it becomes a deliberate choice. It can also block apps and sites outright during a session or on a schedule, and interrupt again after a set time inside an app. It runs on iPhone, iPad, Android and Mac, with a browser extension for desktop browsers.

- **Category:** Focus Apps
- **Made by:** riedel.wtf apps S.L. (since 2020)
- **Website:** https://one-sec.app
- **Runs on:** iOS, Android, macOS, Browser extension
- **Facts last checked:** Oct 5, 2026

## Pricing

one sec has a free plan. Paid plans start at $3.99 / month, or $19.99 / year (US web store price).

- **Pricing model:** Free plan
- **Free plan:** The breathing interruption and Re-Intervention for one app or website, with no ads.
- **Free trial:** 1-week free trial of one sec pro; the web store attaches it to the annual plan.

| Plan | Price | What you get |
| --- | --- | --- |
| Free | $0 | The breathing interruption and Re-Intervention for a single app or website, with no ads. |
| one sec pro (annual) | $19.99 per year, after a 1-week free trial | Unlimited apps, other interruption types, website interruptions, block sessions and time tracking. Same price on the US App Store. |
| one sec pro (monthly) | $3.99 per month, US price on the vendor's web store | The same Pro features paid month to month. The US App Store lists its monthly in-app purchase at $6.99. |
| one sec pro (lifetime) | $99.99 one-time purchase | Pro features for a single payment, at the same price on the web store and the US App Store. |
| Multi-seat plan | From $9.99 per seat / year, at 50 or more seats | Team and school licenses from the web store: $15.99 per seat a year for 4 to 9 seats, $12.99 for 10 to 49 and $9.99 for 50 or more. |
| Family Plan | $29.99 per year, US App Store in-app purchase | Also listed at $9.99 a month or $149 for a lifetime family unlock. The listing does not say how many people it covers. |

Read from https://web.one-sec.app/store on Oct 5, 2026. Prices change, so confirm with one sec before buying.

## Ways to pay less

- **Annual billing costs about 58% less than monthly** (Annual discount): On the web store's US prices, one sec pro is $19.99 billed yearly against $3.99 a month, which comes to $47.88 over twelve months. Source: https://web.one-sec.app/store
- **Lifetime one sec pro for a one-time payment** (Lifetime license): The web store and the US App Store both list a lifetime unlock of one sec pro at $99.99, paid once. Source: https://web.one-sec.app/store
- **50% discount for students** (Education): one sec's help center says it offers students a 50% discount on one sec pro. The article does not describe how to claim it. Source: https://tutorials.one-sec.app/en/articles/3036418
- **Lower per-seat prices from 4 seats** (Other savings): In the web store the annual US price per seat falls from $19.99 to $15.99 at 4 seats, $12.99 at 10 seats and $9.99 at 50 seats. Source: https://web.one-sec.app/store

## Key features

- **Interruptions before an app opens:** A short pause appears before a chosen app or site opens. Types include a breathing exercise, a mirror, a math task, rotating the phone and typing random text.
- **Re-Intervention:** After a set time inside an app, for example 5 minutes, one sec sends you out and asks you to go through another interruption to unlock more time.
- **Block sessions and schedules:** Chosen apps and sites can be blocked completely during a block session or at scheduled times, and interruptions can be limited to set weekdays and hours.
- **Browser extension:** Adds interruptions and blocking to websites in Chrome, Firefox, Safari and Edge on Windows, macOS and Linux, under the same account as the phone apps.
- **Intention and emotion tracking:** Prompts ask why you are opening an app or how you feel, alongside journaling and nudges toward alternative activities such as reading or calling a friend.
- **Progress statistics:** Charts and comparisons show how app use has changed and how much time the interruptions have saved.

## Good for

- People who want a pause before social apps rather than a hard block
- Using one purchase across iPhone, Android, Mac and desktop browsers
- Teams and schools buying multi-seat licenses

## Worth knowing

- The free version covers a single app or website; adding more needs one sec pro.
- The price depends on where you buy: one sec's web store charges $3.99 a month in the US, while the US App Store lists the monthly purchase at $6.99.
- No Windows or Linux desktop app is listed; on those systems one sec runs only as a browser extension.
- Not every Pro feature is on every platform: the help center's table marks strict block sessions and website blocking as unavailable on Android.

## What people say

- **App Store rating of the iPhone and iPad app:** 4.8 out of 5 from 23,648 ratings in the United States, read Oct 5, 2026. This is the store's rating of the app, not a score from ToolGPA. Source: https://apps.apple.com/us/app/id1532875441

## Works with

Structured, LENGO, Apple Health

**Tags:** Site & app blocker, One-time purchase

## Alternatives

- [Opal](https://toolgpa.com/tools/opal): Screen time app that blocks distracting apps on phone and Mac. [Compare](https://toolgpa.com/compare/one-sec-vs-opal)
- [ScreenZen](https://toolgpa.com/tools/screenzen): Free app that delays and blocks distracting apps and sites. [Compare](https://toolgpa.com/compare/one-sec-vs-screenzen)
- [Clearspace](https://toolgpa.com/tools/clearspace): Screen time app that adds a pause and a time limit to distracting apps. [Compare](https://toolgpa.com/compare/clearspace-vs-one-sec)
- [Jomo](https://toolgpa.com/tools/jomo): Screen time blocker for iPhone, iPad and Mac with flexible rules. [Compare](https://toolgpa.com/compare/jomo-vs-one-sec)
- [Freedom](https://toolgpa.com/tools/freedom): Website and app blocker that runs across computers and phones. [Compare](https://toolgpa.com/compare/freedom-vs-one-sec)

## Sources

The prices, plans, platforms and features above were read from these pages on Oct 5, 2026:

- https://one-sec.app/
- https://one-sec.app/faq/
- https://one-sec.app/platforms/
- https://one-sec.app/about/
- https://one-sec.app/companies/
- https://web.one-sec.app/store
- https://tutorials.one-sec.app/en/articles/3036418
- https://apps.apple.com/us/app/one-sec-screen-time-focus/id1532875441
- https://play.google.com/store/apps/details?id=wtf.riedel.onesec&hl=en_US&gl=US

Page: https://toolgpa.com/tools/one-sec
Listed by ToolGPA (toolgpa.com).