O2 Calendar vs LUKLAK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O2 Calendar
Manage your schedule with this app, offering tools for events, appointments, notes, and daily tasks. Set custom reminders for your important activities and organize your day effectively.
- Event creation and management
- Customizable event reminders
- Daily task reminders
- Note-taking functionality
- Appointment scheduling
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O2 Calendar là công cụ tốt nhất để quản lý công việc của bạn: Lịch, Sự kiện, cuộc hẹn, ghi chú và công việc hàng ngày. Tính năng, đặc điểm - Tạo và quản lý sự kiện - Nhắc nhở tùy chỉnh cho Sự kiện - Tạo nhắc nhở hàng ngày
LUKLAK
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LUKLAK is the ultimate business application with a "Unified & Universal" approach, designed to revolutionize the way you work. With LUKLAK, you can unify your work and communication effortlessly, thanks to its real-time chat feature that's built into each task. You can now manage structured data of work management with unstructured, free-text chat discussion data in a single point of truth. The collaborative work management system on LUKLAK comes equipped with a powerful dashboard capability, so you can easily monitor the progress of your projects, all in one place. LUKLAK also offers a strong and versatile workflow and process management system that makes SOP (Standard Operating Procedures) a breeze. You can now streamline your processes and increase efficiency with ease. But that's not all! With LUKLAK, you don't need any coding skills to build your own specific feature. The no-code and low-code (on web app) feature allows citizen-developers to build custom features instantly, making it easy for everyone to contribute to the project. Take control of your business today with LUKLAK - the next-generation business application.
Screenshots
Verdict
The clearest difference is update cadence: O2 Calendar at every 4 days against LUKLAK's fortnightly. O2 Calendar also leads on iOS requirement (9.0 vs 13.0). 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.
O2 Calendar ships an update every 4 days, LUKLAK fortnightly. Both last shipped on November 3, 2026.
| Parameter | O2 Calendar | LUKLAK |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| Update frequency | Every 4 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 52 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | O2 VN Tech.,JSC | Luklak Joint Stock Company |
In-app purchases
O2 Calendar
No in-app purchases
LUKLAK
No in-app purchases









