Comparison

one sec | screen time + focus vs SelfBlock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

one sec | screen time + focus

This app introduces intentional friction to distracting apps and websites, helping users reduce screen time and improve focus. It delays access rather than blocking, promoting long-term behavioral change. Integrates with other apps for enhanced productivity.

Highlights
  • Adds friction to distracting apps
  • Delays app access instead of blocking
  • Reduces app usage significantly
  • Doom Scroll Emergency Brake (Re-Intervention)
  • Free Safari extension for websites
  • Integrates with other productivity apps
Features
Read full description

Stop opening social media on autopilot. one sec adds a short pause before distracting apps so you can choose what deserves your attention. This principle works really well: we have gained scientific evidence in numerous research studies with the Max-Planck Institute, with the German and Danish government, and in dozens more scientific collaborations: one sec has incredible effects on your screen time: app usage drops by 57% on average! …just read our App Store reviews or try it for yourself if you don’t believe me (…you should really try it)! How is one sec different from Screen Time limits or app blockers? - one sec DELAYS access to distracting apps instead of blocking apps completely – that’s an important difference psychologically. - This way, we solve the screen time problem at its roots: long-term & sustainably! - one sec is always on, and makes using social media just slightly more annoying…so you’ll end up using it only when you actually have a reason! Which apps can I use with one sec? - You can set up one sec with any app you’d like to use less / more intentional. - Most popular use-cases are: social media, games, video streaming, dating, stock/coin trading, adult content. - Using one sec with one app of your choice is completely free, for more you’ll need to purchase one sec pro (we also need to finance development of our app!). What if I get stuck scrolling? - No worries, one sec offers a Doom Scroll Emergency Brake: We call it Re-Intervention. - After a set time (e.g. 5 minutes) you’ll be kicked out of social media, and you’ll have to go through an intervention again to unlock more time. Where can I learn more about the scientific background of one sec? → https://one-sec.app/research Can I use one sec to interrupt access to websites as well? → Yes, one sec offers a free Safari extension as well. How does one sec work technically? - one sec uses Shortcuts Automation to toggle a deep breath animation whenever you open one of the configured apps (Instagram, Twitter, YouTube…). - This breaks unconscious social media habits short-term (literally, as soon as you have set it up) and even helps long-term by adding more friction when opening these apps. Integrations: - Structured: one sec blocks apps during unfinished tasks. - LENGO: learn vocabulary to unlock social media. I developed one sec for myself in 2020…and it worked so well I decided to upload it to the App Store. Especially for people with ADHD one sec is a great tool to gain back control for incredible focus and concentration. – Frederik Legal information: Available Subscription Options: one sec pro (annual / monthly / lifetime unlock) one sec can contribute mindful moments to the Health App via HealthKit. one sec is covered by U.S. Patent 12,468,828 B2. Terms (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://one-sec.app/privacy/

About

SelfBlock

Features
Read full description

Every blocker fails the same way: you turn it off. SelfBlock doesn't let you. When you try to open a blocked app, a friend gets the request — and they decide. No friend available? Ask the anonymous community instead. Someone always answers. ► BUDDY SYSTEM When you try to open a blocked app, your buddy gets a request. They set the time and decide for you. They can respond instantly from a notification or Apple Watch. ► COMMUNITY MODE Don't want to assign a friend? Get anonymous support from the community. A random user reviews your request. Your identity stays hidden. ► 5 BLOCKING MODES – Full Block: Completely prevent app access – Schedule: Auto-block during work, study, or sleep hours – Usage Limit: Set daily time limits per app – Open Limit: Control how many times you open an app – Solo Mode: Manage with your own willpower ► BLOCK ANY APP Block YouTube, TikTok, Instagram, Snapchat, X (Twitter), Facebook, Reddit, WhatsApp, Discord and any distracting app or website. ► LIVE FOCUS TRACKING – Daily focus moment counter and day streak – Weekly report with progress summary – Daily check-in to track your mood – Home screen widgets and Live Activity support ► APPLE WATCH Approve or reject requests from your wrist. Track focus stats right from your watch face. ► CUSTOM SHIELD THEMES Personalize your block screen with 6 themes and custom colors. ► STRICT MODE Prevent bypassing blocks with PIN code, wait timer, or time lock. Extra protection options: block app installs, deletions, and in-app purchases. ► PRIVACY FIRST SelfBlock uses Apple's Screen Time API (Family Controls). Your data stays on your device. No tracking, no ads. ► FREE TO START Download free and start using right away. Go Pro for unlimited buddy and community mode, custom themes, weekly reports, strict mode, and more. SelfBlock works as a screen time blocker, app blocker, phone addiction tool, digital detox app, focus timer, social media blocker, dopamine detox aid, website blocker, app lock, and productivity tool. Compatible with Apple Watch and Home Screen widgets. Terms of Use: https://ismailpalalii.github.io/selfblock-site/terms.html Privacy Policy: https://ismailpalalii.github.io/selfblock-site/privacy.html

Screenshots

one sec | screen time + focus4 screens
SelfBlock4 screens

Verdict

The call

The clearest difference is update cadence: one sec | screen time + focus at every 2 weeks against SelfBlock's monthly. one sec | screen time + focus also leads on device support (4 vs 2) and iOS requirement (15.0 vs 18.6). On price, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. one sec | screen time + focus sells 6 in-app purchases, starting at $6.99 per month and SelfBlock sells 3 in-app purchases, starting at $4.49 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

one sec | screen time + focus ships an update every 2 weeks, SelfBlock monthly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
one sec | screen time + focus versus SelfBlock: the parameters behind the verdict, then further details
Parameterone sec | screen time + focusSelfBlock
PriceFreeFree
Rating4.8 (24K ratings) — better—
Positive reviews75.8% of reviews—
Number of ratings24K — better—
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, Apple Watch
Requires iOS15.0 — better18.6
Further details — not scored
Size349 MB58 MB
Age rating4+4+
Developerriedel.wtf apps S.L.ismail Hakki Palali

Bugs and requests

one sec | screen time + focus

Reported bugs

4 issues
  • App switching issues
  • Interventions not triggering properly
  • Inconsistent behavior with shortcuts
  • Crashes and freezes on certain devices

Requested features

6 requests
  • Ability to block more apps for free
  • Customizable intervention timers
  • Scheduled app blocking/access
  • Passcode protection for settings
  • Sync settings across devices
Show 1 more
  • More intervention types (e.g. games)

SelfBlock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

one sec | screen time + focus

Subscriptions4
  • one sec pro (1 Month)$6.991 Month
  • one sec pro | Family Plan (1 Month)7 Days trial$9.991 Month
  • one sec pro (1 Year)7 Days trial$19.991 Year
Show 1 more
  • one sec pro | Family Plan (1 Year)7 Days trial$29.991 Year
One-time2
  • one sec pro | Lifetime$99.99
  • one sec pro | Family Lifetime$149.00
3 purchases

SelfBlock

Subscriptions2
  • Pro Monthly$4.491 Month
  • Pro Yearly3 Days trial$27.491 Year
One-time1
  • Pro Lifetime$82.99

Questions

Is one sec | screen time + focus free?
one sec | screen time + focus is free to download, with in-app purchases available.
Is SelfBlock free?
SelfBlock is free to download, with in-app purchases available.
Do one sec | screen time + focus or SelfBlock have ads?
Neither one sec | screen time + focus nor SelfBlock shows ads.
Which is updated more often, one sec | screen time + focus or SelfBlock?
one sec | screen time + focus ships an update every 2 weeks, and SelfBlock monthly. Most recently, one sec | screen time + focus was updated on October 28, 2026 and SelfBlock on October 25, 2026.

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