Comparison

Locky vs DoomMath

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

Head to head
About

Locky

Manage your children's device usage with this comprehensive parental control tool. Set app limits, block unwanted purchases and websites, and prevent unauthorized app installations to foster healthier digital habits.

Highlights
  • App locking with restriction screens
  • Daily app usage time limits
  • Block in-app purchases
  • Control app installation and deletion
  • Website filtering for safe browsing
  • Easy setup and background operation
Features
Read full description

Tired of your kids spending hours on their phones? Locky puts you back in control. Set app limits, block distractions, and build healthier screen habits — all in one simple parental control app trusted by parents worldwide. KEY FEATURES: [App Lock] Lock any app with a restriction screen. When your child opens a locked app, they see a friendly block page instead — keeping them focused and your privacy protected. [Screen Time Control] Set daily usage limits for any app. Locky automatically enforces the time you set, so you don't have to argue about "just five more minutes." [Purchase Protection] Block in-app purchases with one tap. No more surprise charges on your credit card from games or apps. [App Install & Delete Control] Prevent unauthorized app installs or deletions. Keep your child's device clean and safe without constant supervision. [Website Filtering] Block inappropriate websites so your child can browse safely. Simple setup, powerful protection. WHY PARENTS CHOOSE LOCKY: • Easy setup in under 2 minutes • Works quietly in the background • No complicated dashboards or accounts required • Lightweight and battery-friendly • Supports 20 languages Take control of your family's digital life today. Download Locky and enjoy peace of mind. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

DoomMath

This app requires solving math problems to unlock your phone's applications. It aims to replace unproductive scrolling habits with a more engaging mental exercise. Access to its features is available through a subscription.

Highlights
  • App blocking functionality
  • Math problem solving for unlocks
  • Habit replacement tool
  • Subscription-based access
  • Yearly discount plan
Features
Read full description

An app blocker where you have to solve math problems to unlock your apps! Block your unproductive infinite scrolling, brain rotting apps and only unlock them when you solve some math problems! Replace a bad habit with a good one! Note: Access to DoomMath requires a subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://doommath-production.up.railway.app/privacy

Screenshots

Locky4 screens
DoomMath4 screens

Verdict

The call

The clearest difference is rating: Locky at 5.0 against DoomMath's 1.0. Locky also leads on monetization model (free with in-app purchases vs subscription) and ratings volume (3 vs 1). On price, update cadence, ads and in-app purchases 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. Locky sells 3 in-app purchases, starting at $2.99 per month and DoomMath sells 2 in-app purchases, starting at $34.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Locky holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

Locky ships an update every 3 weeks, DoomMath every 2 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Locky versus DoomMath: the parameters behind the verdict, then further details
ParameterLockyDoomMath
PriceFreeFree
Rating5.0 (3 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhoneiPhone
Requires iOS16.0 — better17.6
Further details — not scored
Size29 MB12 MB
Age rating4+4+
DeveloperBeijing Dramavision Technology Co., Ltd.Pandish ltd

In-app purchases

3 purchases

Locky

Subscriptions2
  • Locky VIP - Monthly$2.991 Month
  • Locky VIP - Annual$9.991 Year
One-time1
  • Locky VIP - Lifelong$29.99
2 purchases

DoomMath

Subscriptions2
  • DoomMathYearlyDiscount$34.991 Year
  • DoomMath3 Days trial$59.991 Year

Questions

Is Locky free?
Locky is free to download, with in-app purchases available.
Is DoomMath free?
DoomMath is free to download, with in-app purchases available.
Which has better reviews, Locky or DoomMath?
Locky is rated higher. Locky averages 5.0 out of 5 from 3 ratings, while DoomMath averages 1.0 from 1 ratings.
Do Locky or DoomMath have ads?
Neither Locky nor DoomMath shows ads.
Which is updated more often, Locky or DoomMath?
Locky ships an update every 3 weeks, and DoomMath every 2 weeks. Most recently, Locky was updated on November 4, 2026 and DoomMath on November 5, 2026.

Other comparisons