Complicated problem solving vs WordHub
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Complicated problem solving
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Master the art of complex problem-solving with Complicated Problem Solving. Our app is based on the Fermi problem, a method of breaking down complex problems into simpler components using logical and data-driven thinking. By answering a series of simple questions and analyzing data, you'll develop the skills necessary to tackle even the most challenging problems. Our app features a user-friendly interface and a variety of customizable options, allowing you to tailor your problem-solving process to your unique needs and preferences. With our comprehensive tools and resources, you'll be fully equipped to solve complex problems in any area of life. Experience the power of logical and critical thinking with Complicated Problem Solving. Download now and start developing your problem-solving skills today!
WordHub
An offline dictionary and vocabulary learning tool for English learners. Import your own MDict dictionaries to quickly look up words, read entries, and listen to pronunciations without an internet connection. Explore word origins and relationships, and use features like collections, study plans, and reviews to retain new vocabulary.
- Offline MDict dictionary import and search
- Read entries and listen to pronunciations
- Explore word etymology and relationships
- Collect words, create study plans, and review
- Supports iPhone and iPad
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WordHub 是为英语学习者打造的离线词典与单词学习工具。 导入自己的 MDict 词典后，即可在没有网络的情况下快速查词、阅读词条并收听发音。通过词源地图与词语关系探索单词的来源、演变和联系；结合收藏、学习计划与复习，帮助你把查到的词真正记住。 主要功能： • 导入并离线检索 MDict 词典 • 多词典词条阅读与音频发音 • 词源路线与地图式探索 • 收藏单词、学习计划与复习练习 • 支持 iPhone 和 iPad 你的词典由你掌控，离线也能安心学习。
Screenshots
Verdict
The clearest difference is update cadence: WordHub at every 3 days against Complicated problem solving's every 9 days. Complicated problem solving's advantage is iOS requirement (14.0 vs 17.0). On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Complicated problem solving ships an update every 9 days, WordHub every 3 days. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.
| Parameter | Complicated problem solving | WordHub |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 9 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 48 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Man Hung Sun | 北京花花草草科技有限公司 |
In-app purchases
Complicated problem solving
No in-app purchases
WordHub
No in-app purchases
