The Lock-IN Journal

Boîtier Lock-IN — l'objet qui permet d'être vraiment lock in, c'est-à-dire concentré sans distraction
"Lock in": what does it actually mean? Origin, meaning, and how to really do it
"Lock in" means focusing hard while shutting out everything else. Where the phrase comes from, how it's used — and why it turned into a joke. Read more...
Boîtier Lock-IN utilisé en famille pour encadrer le temps d'écran des enfants
Screens and Kids: The Age-by-Age Guide (0-11)
No screens before 3, no phone before 11: what French experts recommend, age by age, and how to apply it without the drama. Read more...
Personne concentrée à son bureau, téléphone bloqué grâce au boîtier Lock-IN
How to Focus at Work: The Anti-Notification Method
One interruption costs 23 minutes of focus. The complete method to reclaim deep work, whether you're in an open office or working from home. Read more...
Illustration des chiffres du temps d'écran des Français en 2026
Screen time: all the 2026 numbers (France, ages, attention)
4 hours a day, 42% of French people saying it's too much, 47 seconds of attention: the verified screen-time figures, with their sources. Read more...
Boîtier Lock-IN posé sur un bureau, utilisé pour bloquer les applications et soutenir la concentration en cas de TDAH
ADHD and Screens: What the Science Says (and 6 Strategies That Work)
Screens don't cause ADHD — but studies show they make its symptoms worse. What the research says, and what actually works. Read more...
Boîtier Lock-IN blanc — dormir sans téléphone dans la chambre
Sleep Without Your Phone: Stop Scrolling in Bed (and Get Your Sleep Back)
Late-night scrolling delays your sleep and ruins your mornings. Here's a concrete method to sleep without your phone, alarm clock included. Read more...
Pack Famille Lock-IN — contrôle parental physique du temps d'écran
Parental Controls: Block Your Teen's Apps Without Going to War
Family Link bypassed, endless negotiations? How to set physical boundaries your teen can't hack — without constant conflict. Read more...
Porte-clés Lock-IN — étudier sans téléphone, même en bibliothèque
How to Study Without Your Phone: The Method to Stay Focused (Exams & Finals)
Just having your phone nearby drains your focus. The complete method to study without your phone and stick to your sessions. Read more...
Boîtier Lock-IN bleu pour bloquer TikTok, Instagram et YouTube
How to Block TikTok, Instagram and YouTube — For Real (iPhone & Android)
Screen Time, third-party apps, DNS: every method to block TikTok, Instagram and YouTube — with their flaws, and the one that actually holds. Read more...
Application Lock-IN — bloquer les applications addictives de son téléphone
Phone Addiction: 8 Signs You're Hooked (and How to Break Free)
Unlocking your phone for no reason? The 8 signs of a real addiction and a 4-step plan to break free — without cutting everything off. Read more...
Boîtiers Lock-IN — l'alternative française à Brick et Unpluq
Brick, Unpluq or Lock-IN: Which Physical App Blocker Should You Choose?
Brick, Unpluq, Lock-IN: price, subscription, manufacturing and how they work — the honest comparison of physical app blockers. Read more...
Boîtier Lock-IN gris — bloquer ses applications quand Temps d'écran ne suffit pas
Why Screen Time Isn't Enough (and What to Do Instead)
Apple's Screen Time and app blockers can be switched off in two taps. Here's why — and the physical solution that actually holds. Read more...
Boîtier Lock-IN blanc — commencer une détox digitale
Digital Detox: Where to Start (Without Ditching Your Phone)
A realistic digital detox — no guilt, no going cold turkey: concrete steps to cut down your screen time. Read more...
Boîtier Lock-IN bleu — arrêter de scroller grâce au blocage physique
How to Stop Scrolling: 7 Methods That Actually Work
You open an app "for two minutes" and lose an hour? 7 concrete methods to stop scrolling and take back control. Read more...
Boîtier Lock-IN — limiter le temps d'écran des ados sans conflit
Teen Screen Time: How Much Is Too Much, and How to Respond Without Conflict
How much screen time is right for a teen, which warning signs to watch for, and how to respond without turning every evening into a tug-of-war. Read more...