CO Teacher vs ZIM Work
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CO Teacher
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The CenterOnline Teacher App (COTeacher) is developed by OMT (The Online Management Training Joint Stock Company) to help teachers working in extracurricular centers to work completely on the phone instead of using the computer. With this app, teachers can: 1. Manage the list of classes taught by him/her; 2. With each class, teachers can: • Conduct roster call on the app; • Review and evaluate his/her students in each lesson/each class session • Grade and mark the tests • Make changes to his/her teaching materials as needed • Manage, update student information 3. Request changes in teaching schedule, arrange substitute teachers; 4. Communicate with students and/or parents on the app 5. Get notifications from center administrators on the app.
ZIM Work
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Công cụ hỗ trợ, theo dõi quá trình học tập, chăm sóc học viên ZIM. - Theo dõi tài liệu bài viết - Diễn đàn Q&A trao đổi học tập - Chat, Audio call
Screenshots
Verdict
CO Teacher and ZIM Work are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
CO Teacher ships an update every 8 days, ZIM Work every 5 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | CO Teacher | ZIM Work |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 days | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 45 MB | 105 MB |
| Age rating | 4+ | 4+ |
| Developer | ONLINE MANAGEMENT TRAINING JOINT STOCK COMPANY | Eduvator Joint Stock Company |
In-app purchases
CO Teacher
No in-app purchases
ZIM Work
No in-app purchases
