Comparison

LockNLearn Kids vs Mental Models

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

Head to head
About

LockNLearn Kids

Features
Read full description

LockNLearn – Screen Time That Teaches Screen time doesn’t have to be a daily fight. Every parent knows the routine. β€œJust five more minutes.” Negotiations, frustration, and guilt. LockNLearn helps families turn screen time into a learning moment, calmly and fairly. Instead of arguing over limits, kids unlock screen time by completing short quizzes, while parents stay in control. How LockNLearn works: Parents set screen time rules. Kids complete simple, age-appropriate quizzes. Screen time unlocks automatically and fairly. No shouting. No constant reminders. Clear rules kids understand. Why parents choose LockNLearn: Fewer screen time arguments Learning before entertainment Clear boundaries without punishment Calm transitions when screen time ends Real insight into what kids are learning LockNLearn isn’t about banning screens. It’s about using them better. Built for real families: Easy setup for parents Kid-friendly experience Parent Mode for full control Learning insights by topic Works with everyday screen habits Designed for real homes, not perfect parenting. We’re actively improving LockNLearn with parent feedback. Personalized quizzes and curriculum-based learning features are coming soon. Less stress. Better habits. Meaningful screen time. LockNLearn helps screen time end peacefully and start with learning.

About

Mental Models

Features
Read full description

The sharpest thinkers don't just work harder, they think differently. Mind Models teaches you the mental frameworks used by the world's best decision-makers, investors, and leaders, one lesson at a time. Whether you want to make better decisions, solve hard problems, lead more effectively, or just think more clearly, Mind Models builds a personalized curriculum around your goal and grows with you. 50+ Mental Models Curated and Explained. From First Principles and Inversion to the Pareto Principle and Sunk Cost Fallacy, each lesson breaks down a powerful thinking tool with clear explanations and real-world examples that make it actually stick. Personalized to Your Goal Tell Mind Models what you're working on. We sequence your entire learning path around it, no two paths are the same. Built Around How Humans Actually Learn Spaced repetition resurfaces lessons at exactly the right intervals Daily streaks keep you consistent and motivated One focused model per session. No overwhelm, just fun and easy progress

Screenshots

LockNLearn Kids4 screens
Mental Models4 screens

Verdict

The call

The clearest difference is in-app purchases: LockNLearn Kids at none against Mental Models's 1. Mental Models's advantage is iOS requirement (15.1 vs 18.5). On price, ads and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Mental Models sells 1 one-off in-app purchase. LockNLearn Kids asks for nothing beyond the download.

Scorecard2 real differences Β· 4 level
LockNLearn Kids versus Mental Models: the parameters behind the verdict, then further details
ParameterLockNLearn KidsMental Models
PriceFreeFree
Update frequencyEvery 5 daysβ€”
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS18.515.1 β€” better
Further details β€” not scored
Size19 MB53 MB
Age rating4+4+
DeveloperPratham SahasrabhoajaneChristos Tsavas

In-app purchases

None

LockNLearn Kids

No in-app purchases

1 purchases

Mental Models

One-time1
  • Full Access$6.99

Questions

Is LockNLearn Kids free?
LockNLearn Kids is free to download, with no in-app purchases.
Is Mental Models free?
Mental Models is free to download, with in-app purchases available.
Do LockNLearn Kids or Mental Models have ads?
Neither LockNLearn Kids nor Mental Models shows ads.

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