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80
BU Score
Excellent

one sec | App Zeitlimit Sperre

4.8 ✍️ Editor
✍️ BU Analytics Review

one sec | App Zeitlimit Sperre is an iOS app from riedel.wtf apps S.L. in the Productivity category, currently rated 4.8★ across 22,700 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Our BU Score puts it at 80Excellent (strong product-market fit). For a Productivity app, that means strong product-market fit.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 15 of 15 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mid install base (22,700 ratings)METRIC
+$5,500
Paid app ($0.00)METRIC
+$2,800
Excellent rating (4.8★)METRIC
+$2,200
worth every pennyREVIEW
+$2,000
bugsREVIEW
−$1,800
5 starREVIEW
+$1,800
great valueREVIEW
+$1,600
cancelledREVIEW
−$1,500
excellent appREVIEW
+$1,500
Multilingual (30 languages)METRIC
+$1,500
highly recommendREVIEW
+$1,400
slowREVIEW
−$1,200
too expensiveREVIEW
−$1,000
priceyREVIEW
−$800
Established app (5y old)METRIC
+$800
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Apr 25
May 25
Jun 25
Jul 25
Aug 25
Sep 25
Oct 25
Nov 25
Dec 25
Jan 26
Feb 26
Mar 26

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 262 MB🔞 4+📱 iOS 15.0+🔖 v5.2.3🔄 updated 1w ago🌐 AR, BS, CA, CS, DA +25📂 Productivity💰 Paid🚀 Launched 2020 (5y old)

📝 About this app

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.

Terms (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://one-sec.app/privacy/

🆕 What's New · v5.2.3

- Performance improvements for one sec’s interventions.
- New research infrastructure powering future studies within one sec.
- Localization improvements.
- Dynamic Island improvements.
- Adds new math intervention.
- Improved random text intervention.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
one sec | App Zeitlimit Sperre
Developer
riedel.wtf apps S.L.
Bundle ID
wtf.riedel.one-sec
App Store URL
Open in App Store
Category
Productivity
Content rating
4+
Languages
AR, BS, CA, CS, DA, NL, EN, FI, FR, DE, HE, HI, ID, IT, JA, KO, NB, PL, PT, RO, RU, SR, ZH, SL, ES, SV, ZH, TR, UK, VI

Company

Website
one-sec.app
Tagline
Cut your screen time in half
Description
one sec is the screen time app that truly works – scientifically. Limit your social media use, block websites and more. Get back in control.
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
OG image

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$11.9K/mo
Top-grossing rank
🇩🇪#53 /100
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
https://x.com/bryan_johnson/status/1961118719893279009
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
https://one-sec.app/blog/
Press / News
Not found

Contacts & Socials

Socials
facebook · instagram · tiktok · twitter · youtube
Email
Not found
Phone
2213114120
Contact page
Not found
About page
https://one-sec.app/about/
📈Ratings growth22,700 ratings+52% lifetimeShow 3-year history estimate ▾May 2023Nov 2025May 2026
Tracked (53 weeks) Pre-tracking estimate (35 weeks) · model-based, ±5% noise · anchored to release date and current value
🗺️Geographic DistributionTop 10Top 30Top 60
DE#53
📊Category Rank Trajectory#53 now · best #49 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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