World's Key vs Dr. Cube
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
World's Key
This interactive educational app offers audio-visual lessons and exercises for English and Science curricula for Kindergarten and Primary levels. Students can access engaging content and assessments through an online account, supplementing their printed books.
- Interactive audio-visual lessons
- English and Science curricula
- Kindergarten and Primary levels
- Interactive exercises
- Assessments for lessons
- Online account access
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World's Key application is an interactive educational application for a set of curricula for Kindergarten and Primary Levels in the English language and Science. In our schools, each student receives and uses printed books in his/her class in addition to an online account to access the mentioned application. This application provides students with audio-visual lessons in addition to conducting interactive exercises and assessments to all lessons in both subjects- English and Science. There is no paid services or content. Each student at our schools has a passcode that allow him to access the App content (videos about the lesson and some additional exercises)
Dr. Cube
Access a variety of educational courses tailored for students at different levels. Features high-quality video lectures from various instructors, with course descriptions to help you find the perfect fit for your studies in Iraqi universities.
- Diverse educational courses
- Courses for Iraqi universities
- Lectures by different instructors
- High-quality video content
- Detailed course descriptions
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App provides different types of education to students with different levels. - App provides different courses by different Lectures. - App provides different courses for many universities in Iraq - App provides high Quality videos - App provides description for each course to help see know if the course will fit your study
Screenshots
Verdict
The clearest difference is update cadence: World's Key at every 8 days against Dr. Cube's every 5 weeks. World's Key also leads on review sentiment (55% vs 33%). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 3.8 for World's Key against 3.7 for Dr. Cube. Both are backed by a comparable volume of ratings — 293 and 115 respectively. Written reviews are what separate them: 55% of World's Key's written reviews are positive against 33% of Dr. Cube's.
World's Key ships an update every 8 days, Dr. Cube every 5 weeks. The most recent releases landed on October 11, 2026 and September 30, 2026 respectively.
| Parameter | World's Key | Dr. Cube |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (293 ratings) — better | 3.7 (115 ratings) |
| Positive reviews | 54.5% of reviews — better | 33.3% of reviews |
| Number of ratings | 293 — better | 115 |
| Update frequency | Every 8 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 35 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohammad Bzeih | Huda Ismail |
Customer experience
World's Key
Dr. Cube
Bugs and requests
World's Key
Reported bugs
6 issues- App logs out when accessing videos
- App freezes and doesn't calculate views
- App has errors in exam time calculation
- App doesn't open
- App crashes when opening or solving lessons
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- App doesn't show views or solutions
Requested features
5 requests- Add video playback speed control
- Improve app's responsiveness and speed
- Continuous improvement and development of the app
- Fix bugs and glitches
- Update the app to be more modern
Dr. Cube
Not enough reviews yet to summarise bugs or requests.
In-app purchases
World's Key
No in-app purchases
Dr. Cube
No in-app purchases
