Comparison

Preteens vs Math Lock

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

Head to head
About

Preteens

This educational app offers a fun and engaging way for primary school students aged 4-12 to learn. It covers core subjects based on the Nigerian curriculum, with offline access to lessons and quizzes. The app features a step-by-step learning path and rewards for quiz completion.

Highlights
  • Offline course material access
  • Nigerian curriculum coverage
  • Interactive lessons and quizzes
  • Step-by-step learning pathway
  • Rewards for quiz completion
  • 8 subjects available
  • Content grouped by grade
Features
Read full description

An educational App that carters for primary school students from ages 4 to 12, it provides an easy access to course materials even without an internet connection for accessing learning courses/training on the go.  Our complete learning programs cover all modules based on the Nigerian standard curriculum for Ages 4 to 11. This early learning app was created to make learning fun and at the comfort of your fingertips. Hone mathematical, English and science knowledge, develop a mindset for math, and sharpen your visual perception and mind-brain co-ordination at an early age. A LOT OF LEARNING ACTIVITIES; With 506 lessons and 584 quizzes. • MATH • ENGLISH • VERBAL • QUANTITATIVE • VOCATIONAL APTITUDE • BASIC SCIENCE • SOCIAL STUDIES • ENGLISH SPELLINGS The App provides a step-by-step learning pathway that lets kids develop early skills by moving from elementary concepts to more complex attributes. All course materials are divided into grades and can be played as a consistent learning pathway advancing from one grade to another. FEATURES: • Free to use • No subscription required • Ability to download content for offline use • Ability to select grade and switch between grades • Access to study Materials • Access to quizzes • 8 subjects available • Content available for Primary 1 to Primary 5 • Rewards on successful completion of quizzes. • Dashboard progression indicator • Comprehensive list of schools in Nigeria. • Content grouped based on grade. • A rich and fancy animated user interface. SUBSCRIPTION DETAILS: • No subscription required • Free to use • No hidden charges If you have any enquirers, or would like to share any educational material with us, or suggestions on improving this platform, kindly email us: bmobile@bilyakconsulting.com

About

Math Lock

This app transforms screen time into a learning opportunity for children aged 4-15. It requires solving math problems to unlock the device and offers guided practice, a private tutor, and brain training exercises. Parents can manage screen time while children engage with a fun, curriculum-based math experience.

Highlights
  • Math challenges to unlock device
  • Curriculum-based math for ages 4-15
  • Personalized questions by level
  • Private Tutor with photo solving
  • Brain training activities
  • Parental controls
Features
Read full description

Math Lock is a smart and engaging learning app that helps kids build math skills while giving parents more control over screen time. Designed for ages 4 to 15 (Year 0–10), Math Lock turns your device into a learning tool by requiring children to solve a math challenge before unlocking. But Math Lock is more than a lock screen app. It also includes guided practice, a Private Tutor, photo-based math help, and brain training features that make learning more interactive and useful every day. Questions are adapted by level, helping children progress from basic number recognition and simple equations to fractions, ratios, negative numbers, algebra, and more. Parents can support better habits and focused learning, while children enjoy a playful, colourful experience. Perfect for families who want learning, practice, and screen control in one app. Features: Lock screen with math challenges Curriculum-based math for Year 0–10 (ages 4–15) Auto-generated questions tailored to your child’s level Practice mode for daily maths learning Private Tutor with Ask, Snap, and Learn modes Step-by-step explanations for solving maths problems Photo solving for worksheets, textbooks, and handwritten questions Topic-based learning, including equations, fractions, ratios, and algebra IQ Test and brain training activities Parent settings and control support Fun, child-friendly design that encourages confidence and consistency Make screen time smarter with Math Lock. Terms of Service: https://mathlockapp.com/terms Privacy Policy: https://mathlockapp.com/privacy

Screenshots

Preteens4 screens
Math Lock4 screens

Verdict

The call

The clearest difference is rating: Preteens at 5.0 against Math Lock's 1.0. Preteens also leads on in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume and device support 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. Math Lock sells 2 in-app purchases, starting at $2.99 per month. Preteens asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Preteens holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Preteens ships an update every 5 days, Math Lock every 3 weeks. The most recent releases landed on September 17, 2026 and September 26, 2026 respectively.

Scorecard6 real differences · 4 level
Preteens versus Math Lock: the parameters behind the verdict, then further details
ParameterPreteensMath Lock
PriceFreeFree
Rating5.0 (2 ratings) — better1.0 (1 ratings)
Positive reviews—0.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.0 — better16.6
Further details — not scored
Size23 MB118 MB
Age rating4+4+
DeveloperBilyak ConsultingSPARKHIVE TECH LTD

Customer experience

Preteens

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Math Lock

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Preteens

No in-app purchases

2 purchases

Math Lock

Subscriptions2
  • Math Lock Premium3 Days trial$2.991 Month
  • Math Lock Premium Yearly3 Days trial$29.991 Year

Questions

Is Preteens free?
Preteens is free to download, with no in-app purchases.
Is Math Lock free?
Math Lock is free to download, with in-app purchases available.
Which has better reviews, Preteens or Math Lock?
Preteens is rated higher. Preteens averages 5.0 out of 5 from 2 ratings, while Math Lock averages 1.0 from 1 ratings.
Do Preteens or Math Lock have ads?
Math Lock shows ads; Preteens does not.
Which is updated more often, Preteens or Math Lock?
Preteens ships an update every 5 days, and Math Lock every 3 weeks. Most recently, Preteens was updated on September 17, 2026 and Math Lock on September 26, 2026.

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