The Math Trainer vs World
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
The Math Trainer
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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 ā 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.
World
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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
Verdict
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
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.
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.
| Parameter | The Math Trainer | World |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days ā better | Every 2 months |
| Ads | No ā better | Yes |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod ā better |
| Requires iOS | 17.6 | 15.6 ā better |
| Further details ā not scored | ||
| Size | 5 MB | 147 MB |
| Age rating | 4+ | 4+ |
| Developer | Jose Antonio Quiles | Olga Ivanova |
In-app purchases
The Math Trainer
No in-app purchases
World
- flags_by_oliva_subscription$1.991 Month
- flags_by_oliva_donation$1.99









