Comparison

Math Lock vs BlondeCat Books

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

Head to head
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

About

BlondeCat Books

Features
Read full description

Discover Blonde Cat Books Turn screen time into meaningful story time with Blonde Cat Books, a safe, ad-free children’s reading app filled with animated storybooks, interactive pages, professional narration, and engaging read-along experiences. Your subscription gives your family access to a growing variety of imaginative adventures, including Chloe and Max: Good Germs Detectives, a fun mystery series that encourages curiosity and problem-solving, and Sergio’s 48-Hour Party, a heartwarming story about a determined sloth trying to reach his best friend’s party in time. And when children fall in love with the characters, they can enjoy singing along to their songs too—bringing every story to life through music. Download Blonde Cat Books and begin your next reading adventure today. Privacy Policy & Terms of Use: https://blondecatbooks.com/App-Page

Screenshots

Math Lock4 screens
BlondeCat Books4 screens

Verdict

The call

The clearest difference is ads: BlondeCat Books at none against Math Lock's shown. On price, update cadence, in-app purchases 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 and BlondeCat Books sells 3 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Math Lock ships an update every 3 weeks, BlondeCat Books monthly. The most recent releases landed on September 26, 2026 and October 15, 2026 respectively.

Scorecard1 real difference · 9 level
Math Lock versus BlondeCat Books: the parameters behind the verdict, then further details
ParameterMath LockBlondeCat Books
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeks — betterMonthly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size118 MB35 MB
Age rating4+4+
DeveloperSPARKHIVE TECH LTDBlondeCat Books LTD

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
3 purchases

BlondeCat Books

Subscriptions3
  • BlondeCat Books Premium (Monthly)$7.991 Month
  • BlondeCat Books Premium (Quarterly)$24.993 Months
  • BlondeCat Books Premium (Yearly)$79.991 Year

Questions

Is Math Lock free?
Math Lock is free to download, with in-app purchases available.
Is BlondeCat Books free?
BlondeCat Books is free to download, with in-app purchases available.
Do Math Lock or BlondeCat Books have ads?
Math Lock shows ads; BlondeCat Books does not.
Which is updated more often, Math Lock or BlondeCat Books?
Math Lock ships an update every 3 weeks, and BlondeCat Books monthly. Most recently, Math Lock was updated on September 26, 2026 and BlondeCat Books on October 15, 2026.

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