World's Key vs Cihan Schools
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)
Cihan Schools
This app connects students, parents, and school administration, providing access to schedules, exam times, and homework assignments. Students can also take online quizzes directly through the application. It supports communication between parents and teachers, and offers information about school activities.
- Student and parent communication
- Homework and schedule access
- Exam time information
- Online quiz functionality
- School activity updates
- Multilingual support
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Cihan Schools app offer students and parents a phone application, which provides them all the information about the school and their activities. It will give a communication between parents and teachers as well as between parents and admin staffs. Students can receive their homework from the system also they can get information about their schedule and exam times. they can do their online quizzes from the app directly. The app is available with 5 languages (English, Kurdish, Arabic, Persian and Turkish)
Screenshots
Verdict
The clearest difference is rating: World's Key at 3.8 against Cihan Schools's 3.1. World's Key also leads on update cadence (every 8 days vs every 6 weeks) and ratings volume (320 vs 20). Cihan Schools's advantage is review sentiment (67% vs 55%) and iOS requirement (13.1 vs 16.6). On price, ads, in-app purchases and monetization model 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.
World's Key holds the better App Store score, 3.8 against 3.1. That said, the two scores are not equally well evidenced: World's Key has 320 ratings behind it against 20, so its average is the more settled of the two. Written reviews complicate that: 55% of World's Key's written reviews are positive against 67% of Cihan Schools's, so the app with the better star average is not the one people write more warmly about.
World's Key ships an update every 8 days, Cihan Schools every 6 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.
| Parameter | World's Key | Cihan Schools |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (320 ratings) — better | 3.1 (20 ratings) |
| Positive reviews | 54.5% of reviews | 66.7% of reviews — better |
| Number of ratings | 320 — better | 20 |
| Update frequency | Every 8 days — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 13.1 — better |
| Further details — not scored | ||
| Size | 35 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohammad Bzeih | Andam Omer |
Customer experience
World's Key
Cihan Schools
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
Cihan Schools
Not enough reviews yet to summarise bugs or requests.
In-app purchases
World's Key
No in-app purchases
Cihan Schools
No in-app purchases
