O2 Calendar vs Shift Planner RosterShift
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
Shift Planner RosterShift
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RosterShift plans the month for a team that works in shifts: hospitals, clinics, pharmacies, security, hospitality, any roster where nights and 24 hour duties have to be shared fairly. Describe the rules once. Minimum staff per day, role mix, who can pair with whom, rest after nights and long duties. Pick a month and the plan is generated inside those rules, not on top of them. WHAT YOU GET - A month view that shows every day, every name and every duty at a glance - A list view with the exact hours of each shift - Requests from the team in one queue: time off, preferred days off, swaps between two people - One approval and the plan updates itself - Fairness statistics: points, monthly load and who carried what, month after month - Draft, share for review, then publish when the team agrees - Holidays for your country included, plus your own special days BUILT FOR REAL ROSTERS Night duty followed by a rest day. 24 hour duties with the day after protected. Members who must not be on the same day. Minimum staffing that cannot be broken. The generator respects all of it, and tells you when a request cannot be granted without breaking a rule. FIRST TWO MONTHS FREE Your first two team months are free with the full feature set. No trial that expires while you are still setting up. Available in 30 languages. SUBSCRIPTION RosterShift Pro is a monthly or yearly auto renewable subscription. Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless auto renew is turned off at least 24 hours before the current period ends. You can manage or cancel it in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.rostershift.app/en/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: O2 Calendar at none against Shift Planner RosterShift's 3. O2 Calendar also leads on device support (3 vs 1) and iOS requirement (9.0 vs 18.4). Shift Planner RosterShift's advantage is update cadence (daily vs every 4 days). On price 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. Shift Planner RosterShift sells 3 in-app purchases, starting at $3.99 per month. O2 Calendar asks for nothing beyond the download.
O2 Calendar ships an update every 4 days, Shift Planner RosterShift daily. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.
| Parameter | O2 Calendar | Shift Planner RosterShift |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| Update frequency | Every 4 days | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 18.4 |
| Further details — not scored | ||
| Size | 52 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | O2 VN Tech.,JSC | EGEMEN KAR |
In-app purchases
O2 Calendar
No in-app purchases
Shift Planner RosterShift
- RosterShift Pro Monthly$3.991 Month
- RosterShift Pro (Founders)$9.991 Year
- RosterShift Pro Yearly$29.991 Year
Questions
Is O2 Calendar free?
Is Shift Planner RosterShift free?
Do O2 Calendar or Shift Planner RosterShift have ads?
Which is updated more often, O2 Calendar or Shift Planner RosterShift?
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