Comparison

BlockSite vs one sec | screen time + focus

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

Head to head
About

BlockSite

This app helps you regain control of your time by blocking distracting websites and applications. It offers features to create custom block lists, schedule focus times, and limit usage, promoting productivity and reducing procrastination.

Highlights
  • Website Blocker
  • App Blocking
  • Block List
  • Schedule Mode
  • Usage Limit
  • Password Protection
  • Category Blocking
Read full description

Take control of your time with BlockSite - the ultimate app blocker and site blocker! Stay focused, avoid procrastination and improve your productivity with one of the highest-rated focus apps. Block websites and block apps today, completely free. Blocking distractions to stay focused has never been easier with BlockSite. Simply block websites and apps that take your attention and focus away from what’s important. BlockSite works with all major browsers like Safari, Google Chrome, and Firefox. Block Apps and Block Websites Now! Feature Favorites: - Website Blocker - App Blocking - Block List - Schedule Mode - Usage Limit Premium Features: * Block by Keyword * Unlimited Category Blocking * Password Protection Features Built To Help You Stay Focused and in Control Website Blocker Add as many websites as you want to your block list for the ultimate distraction free time. Block them all today! Password Protection (Premium) Keep yourself focused and on task with our premium password protection feature. Protect the settings and blocked pages you create with a password so you aren’t tempted to break your focus. Category Blocking (Premium) Stay focused by blocking thousands of websites and apps with a single tap. Group distractions into categories such as Social Media, Shopping, Entertainment, and other distracting or inappropriate content categories to reclaim your productivity. Block by Keyword (Premium) Block websites with specific keywords. For example, if you block the keyword ‘social’, you won’t be able to access any websites with a URL that contains the word ‘social’ - like social media platforms for example. Schedule Mode Create daily schedules and daily routines for when you need to stay focused with Schedule Mode. Set exact days and times for when you can access certain websites and apps and when you want to block sites and apps. Block List Block sites and apps with your Block List. Once you add distracting sites and apps to your block list, BlockSite will ensure that you don’t visit them while they’re activated. App Blocker For the ultimate self control and ability to stay focused, try our app blocker feature. Block any app you want for however long you want. LET’S STAY IN TOUCH! support@blocksite.co BlockSite helps to free you from distractions and stay focused for longer by using inner VPN services to block them from opening on Safari, Chrome, or Firefox. For more information, please see our Privacy Policy: https://blocksite.co/privacy/ Our terms of use are available here: https://blocksite.co/terms

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

Willpower is not enough against social media algorithms! That’s why I made one sec: one sec adds friction to distracting apps to make them less appealing…long-term! 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 if 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/

Screenshots

BlockSite4 screens
one sec | screen time + focus4 screens

Verdict

The call

The clearest difference is rating: one sec | screen time + focus at 4.8 against BlockSite's 4.2. one sec | screen time + focus also leads on review sentiment (76% vs 62%) and device support (4 vs 1). On price, update cadence, 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. BlockSite sells 16 in-app purchases, starting at $2.99 per month and one sec | screen time + focus sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

one sec | screen time + focus holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 6.2K and 24K respectively. Written reviews point the same way: 62% of BlockSite's written reviews are positive against 76% of one sec | screen time + focus's.

UpkeepUpdate frequency

BlockSite ships an update fortnightly, one sec | screen time + focus every 2 weeks. Both last shipped on September 24, 2026.

Scorecard5 real differences · 5 level
BlockSite versus one sec | screen time + focus: the parameters behind the verdict, then further details
ParameterBlockSiteone sec | screen time + focus
PriceFreeFree
Rating4.2 (6.2K ratings)4.8 (24K ratings) — better
Positive reviews61.6% of reviews75.9% of reviews — better
Number of ratings6.2K24K — better
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhoneiPhone, iPad, iPod, Mac — better
Requires iOS17.615.0 — better
Further details — not scored
Size101 MB368 MB
Age rating4+4+
DeveloperBlockSite LPriedel.wtf apps S.L.

Customer experience

BlockSite

All ratings6,186 ratings
Positive80.3%
Neutral4.7%
Negative15.0%
Written reviews774 reviews
Positive61.6%
Neutral8.5%
Negative29.8%

one sec | screen time + focus

All ratings23,574 ratings
Positive96.0%
Neutral1.5%
Negative2.5%
Written reviews1,609 reviews
Positive75.9%
Neutral9.4%
Negative14.7%

User reviews

BlockSite

From 6.2K App Store ratings

What we love

  • 🚀 Effective at blocking distractions
  • 👍 Helps with focus and productivity
  • 🔒 Blocks adult content
  • 👍 Simple and easy to use

Room to improve

  • 🐛 Password protection doesn't work as expected
  • 🔋 Drains battery and data
  • 🐛 Causes issues with other apps/websites
  • 💰 Expensive subscription

one sec | screen time + focus

From 24K App Store ratings

What we love

  • 🚀 Saves time
  • 👍 Helps reduce screen time
  • 💡 Customizable interventions
  • 👍 Effective at curbing habits
  • 👍 Intuitive and easy to use

Room to improve

  • 🐛 Buggy at times
  • 💰 Premium features behind paywall
  • 🔒 Concerns about privacy/data collection
  • 🔒 Inability to fully disable the app
  • 🐛 Inconsistent behavior across apps

Bugs and requests

BlockSite

Reported bugs

3 issues
  • Inconsistent blocking behavior
  • Blocks unintended sites
  • Causes internet connectivity issues

Requested features

4 requests
  • More customization options
  • Ability to lock down app and prevent unblocking
  • Scheduled blocking and time limits
  • Keyword blocking

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)

In-app purchases

16 purchases

BlockSite

Subscriptions15
  • Monthly Subscription$2.991 Month
  • Monthly Subscription$3.991 Month
  • Monthly Subscription$9.991 Month
Show 12 more
  • Monthly Subscription$10.991 Month
  • Monthly Subscription$14.991 Month
  • BlockSite Premium$19.991 Month
  • Monthly Subscription$19.991 Month
  • Annual Subscription$23.991 Year
  • Six Month Subscription$29.996 Months
  • Semi-Annual Subscription$29.996 Months
  • Annual Subscription2 variants$38.991 Year
  • Annual Subscription3 Days trial$38.991 Year
  • Annual Subscription$39.991 Year
  • Annual Subscription$47.901 Year
  • Annual Subscription$48.991 Year
One-time1
  • Lifetime Access$49.99
6 purchases

one sec | screen time + focus

Subscriptions4
  • one sec pro (1 Month)$2.991 Month
  • one sec pro | Family Plan (1 Month)7 Days trial$4.991 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

Questions

Is BlockSite free?
BlockSite is free to download, with in-app purchases available.
Is one sec | screen time + focus free?
one sec | screen time + focus is free to download, with in-app purchases available.
Which has better reviews, BlockSite or one sec | screen time + focus?
one sec | screen time + focus is rated higher. BlockSite averages 4.2 out of 5 from 6.2K ratings, while one sec | screen time + focus averages 4.8 from 24K ratings.
Do BlockSite or one sec | screen time + focus have ads?
Neither BlockSite nor one sec | screen time + focus shows ads.
Which is updated more often, BlockSite or one sec | screen time + focus?
BlockSite ships an update fortnightly, and one sec | screen time + focus every 2 weeks. Most recently, BlockSite was updated on September 24, 2026 and one sec | screen time + focus on September 24, 2026.

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