Comparison

The Math Trainer vs World

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

Head to head
About

The Math Trainer

Features
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The Personal Math Trainer With this app, you can train your mental math skills (addition, subtraction, multiplication, division and mix) every day, turning it into a habit. The app is designed to provide only the types of operations needed for more complex everyday calculations. You have two minutes to get as many correct answers as possible — but be careful, mistakes will cost you points. You can track your progress daily with a calendar displaying the last few months. Additionally, you can view graphs to monitor your daily improvement in each fundamental math operation. This app is highly useful for children starting out with math, but also for adults who want to stay sharp with mental calculations.

About

World

Features
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Explore flags from countries around the world. World Flags Guide helps you discover national flags, historical flags, and cultural symbols from around the world. Learn about flag designs, colors, symbols, and the countries or regions they represent. The app provides structured information about flags and their symbolism, making it useful for learning geography, history, and global cultures. Explore World Flags • Discover national flags from countries worldwide • Learn about civil, state, and historical flags • Explore flag colors, symbols, and design elements • Understand the meanings behind flag designs Flag Information • Country or region associated with each flag • Visual details and design elements • Historical and cultural context • Geographic location information Search and Discovery • Search flags quickly • Browse flags by country or category • Explore flags using an interactive world map Learning Tools • Quiz mode to test flag knowledge • Educational facts about flags and symbols • Helpful information for geography learning Favorites • Save flags you want to remember • Quickly revisit interesting flags Designed for Easy Exploration • Clean and simple interface • Fast navigation between flags • Organized flag entries Premium Features Upgrade for additional benefits: • Offline access to flag information • Ad-free experience • Improved browsing convenience Privacy Focused • No unnecessary permissions • No personal data collection • Information remains on your device Who This App Is For • Students learning geography • Teachers and educators • Travelers and culture enthusiasts • Anyone interested in flags and world symbols World Flags Guide helps you explore flag designs, understand their meanings, and learn about countries and cultures around the world. Download World Flags Guide to explore flags from around the globe. LICENSED APPLICATION END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

The Math Trainer4 screens
World4 screens

Verdict

The call

The clearest difference is in-app purchases: The Math Trainer at none against World's 2. The Math Trainer also leads on ads (none vs shown) and update cadence (every 11 days vs every 2 months). World's advantage is iOS requirement (15.6 vs 17.6). On price and device support there is nothing between them.

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

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

Both are free to download. World sells 2 in-app purchases, starting at $1.99 per month. The Math Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

The Math Trainer ships an update every 11 days, World every 2 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences Ā· 2 level
The Math Trainer versus World: the parameters behind the verdict, then further details
ParameterThe Math TrainerWorld
PriceFreeFree
Update frequencyEvery 11 days — betterEvery 2 months
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.6 — better
Further details — not scored
Size5 MB147 MB
Age rating4+4+
DeveloperJose Antonio QuilesOlga Ivanova

In-app purchases

None

The Math Trainer

No in-app purchases

2 purchases

World

Subscriptions1
  • flags_by_oliva_subscription$1.991 Month
One-time1
  • flags_by_oliva_donation$1.99

Questions

Is The Math Trainer free?
The Math Trainer is free to download, with no in-app purchases.
Is World free?
World is free to download, with in-app purchases available.
Do The Math Trainer or World have ads?
World shows ads; The Math Trainer does not.
Which is updated more often, The Math Trainer or World?
The Math Trainer ships an update every 11 days, and World every 2 months. Most recently, The Math Trainer was updated on October 30, 2026 and World on October 31, 2026.

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