Disclosure: This article is published by Reinwok, the team behind Flexible Calendar & Timeline Planner. We have done our best to present each plugin fairly based on publicly available Marketplace listings and documentation. We encourage you to try all three before deciding.
Key Takeaways
- Flexible Calendar & Timeline Planner is the only plugin of the three that bundles a calendar and a resource planning timeline in a single app. Competitors either lack a timeline or sell it separately.
- If Google Calendar or Outlook sync is essential for your workflow, Calendar for Jira (DoItB) is the strongest choice — it offers 2-way Google sync, ICS export, and public embed URLs.
- If you need a simple, low-cost calendar without resource planning complexity, Event Calendar for Jira (Aldeva) gets the job done with the smallest learning curve.
- Flexible Calendar offers features like cross-timeline scheduling (drag an issue between timelines to change its sprint, fix version, assignee, or component directly in Jira), an Issue Planner sidebar, and bidirectional event-to-issue linking that are not available in either competitor.
- All three have different pricing models. Flexible Calendar is free for up to 10 users and the lowest cost at every tier; Calendar for Jira starts at $2.00/user; Event Calendar starts at $4.53/user.
Introduction
Jira is great for sprint tracking and backlog management, but its built-in views were not designed for calendar-based planning. If your team needs to visualize deadlines across months, schedule non-Jira events like holidays or company travel, or plan who works on what across projects, a dedicated calendar plugin fills that gap.
The Atlassian Marketplace offers several calendar plugins. In this article, we compare three of the most popular options for Jira Cloud:
- Flexible Calendar & Timeline Planner for Jira by Reinwok — combines a calendar with a resource planning timeline in one app
- Calendar for Jira by DoItB — the most established option with strong external calendar integrations (3,000+ installs)
- Event Calendar for Jira by Aldeva Digital — a straightforward calendar focused on event management (2,300+ installs)
Each plugin takes a different approach. We will walk through what each one does well, where it falls short, and how they compare on pricing — so you can pick the one that fits your team.
Quick Comparison Table
A side-by-side overview of the most important features:
| Feature | Flexible Calendar & Timeline Planner | Calendar for Jira (DoItB) | Event Calendar (Aldeva) |
|---|---|---|---|
| Calendar Views | Month, Week, All Week, Day, Basic Day, Agenda, Quarter, Timeline | Day, Week, Month, Quarter, Agenda | Day, Week, Month |
| Resource Timeline | ✓ Included (Day through Year scopes) | Separate product | ✗ |
| Resource Grouping | Assignee, Project, Sprint, Epic, Fix Version, Component, Custom Field | N/A | N/A |
| Cross-Timeline Scheduling | ✓ Updates Jira fields on move | N/A | N/A |
| Custom Events | ✓ Types, participants, links, rich text | ✓ Basic events | ✓ With types |
| Recurring Events | ✓ Daily / Weekly / Monthly / Yearly | ✓ | ✓ Weekly / Monthly / Yearly |
| Drag-and-Drop | ✓ Including cross-resource | ✓ | ✗ |
| Linked Jira Issues on Events | ✓ Bidirectional | ✗ | ✗ |
| Issue Planner Sidebar | ✓ Search + drag to schedule | ✗ | ✗ |
| Google Calendar / ICS Sync | ✗ | ✓ 2-way Google + ICS export | ✓ Import/export |
| Public Embed URL | ✗ | ✓ | ✗ |
| Email Invitations | ✗ | ✗ | ✓ |
| Dashboard Gadgets | ✓ Calendar + Upcoming Events | ✓ Calendar (max 10) | ✓ |
| PDF / Excel Export | ✓ | ✗ | ✗ |
| Multi-Language | ✓ 8 languages | ✗ | ✗ |
| JSM Portal Integration | ✗ | ✓ | ✗ |
| Runs on Atlassian (Forge) | ✓ | ✗ Connect | ✗ Connect |
| Free Tier | ✓ Up to 10 users | ✗ | ✗ |
Flexible Calendar & Timeline Planner for Jira
Flexible Calendar & Timeline Planner by Reinwok combines two modules in one Jira app: a calendar for event and issue visualization, and a resource planning timeline for scheduling work across teams. It is built on Atlassian Forge, which means it runs entirely on Atlassian’s infrastructure — your data stays within the Atlassian ecosystem and is not accessible by third-party servers.
Calendar Module
The calendar supports 8 view layouts — Month, Week, All Week, Day, Basic Day, Agenda, Quarter, and Timeline. Jira issues are displayed alongside custom events, with drag-and-drop rescheduling and date-range resizing. Each calendar supports JQL-based quick filters, custom event types with configurable icons, and recurring events (daily, weekly, monthly, yearly).
Calendar month view with Jira issues, custom events, and quick filters
Resource Timeline Module
The Resource Timeline provides a Gantt-style view where Jira issues and custom events are grouped by resources — Assignee, Project, Sprint, Epic, Fix Version, Component, or any Custom Field. Teams can view timelines across 7 time scopes: Day, Week, Month, Quarter, Half Year, Year (daily), and Year (monthly).
Resource Timeline with issues grouped by assignee across a monthly view
Multiple timelines can be displayed side-by-side, each with its own source configuration and color scheme. This helps when managers need to see multiple projects or departments at a glance.
Multi-timeline view for cross-team coordination
Cross-Timeline Scheduling
One of the more practical features for day-to-day planning: when you drag an issue from one timeline to another, the corresponding Jira field is updated automatically. The behavior depends on how the timeline is grouped:
- Grouped by Assignee: dragging an issue to a different assignee’s row reassigns it in Jira
- Grouped by Sprint: moving an issue between sprint rows changes the issue’s sprint
- Grouped by Fix Version: moves the issue to the target release version
- Grouped by Component: updates the issue’s component
- Grouped by Epic: re-parents the issue under a different epic
Issue Planner Sidebar
The Issue Planner opens as a side panel where you can search for Jira issues by text or JQL, then drag and drop them directly onto the timeline to schedule them — setting the resource, dates, and assignment in one motion.
Issue Planner sidebar — search via JQL and drag issues onto the timeline
Custom Events with Linked Jira Issues
Custom events support rich text descriptions, participants from Jira users, external links, and configurable event types (holiday, meeting, travel, bug, etc.). Events can be linked to Jira issues bidirectionally — linked issues appear as a badge on the calendar/timeline entry, and linked events appear on the Jira issue panel.
Custom event on the timeline with event type icon and linked issue badge
Jira Issue Panel
A Linked Events panel appears directly on Jira issues, showing all custom events linked to that issue. From the calendar you see which issues are linked to an event; from any issue you see which events reference it.
Jira issue panel showing linked custom events
Dashboard Gadgets
Two dashboard gadgets are included: a Calendar gadget for embedding calendar views on any Jira dashboard, and an Upcoming Events gadget that shows a compact list of upcoming events and issues.
Upcoming Events gadget on a Jira dashboard
Other Notable Features
- PDF & Excel export for sharing schedules outside Jira
- 3-tier permissions: Admin, Use, Read Only — per calendar and per timeline
- Email reminders with configurable intervals (at time of event, 5 min to 1 week before)
- Forge-based architecture: runs on Atlassian’s own infrastructure, so your data never leaves the Atlassian ecosystem and is not accessible by external servers
Limitations
- No external calendar sync — no Google Calendar, Outlook, or ICS integration. If your team relies on syncing Jira events to Google Calendar, this is a significant gap.
Calendar for Jira (DoItB)
Calendar for Jira by DoItB is one of the most established calendar plugins on the Atlassian Marketplace, with over 3,000 installations and a long track record. It is the go-to choice for teams that need strong external calendar integrations and a proven, stable product.
Views & Calendar Types
Calendar for Jira offers 5 views: Day, Week, Month, Quarter, and Agenda. It supports 6 calendar source types: Basic (non-Jira events), Project, JQL, Filter, Board, and Subscription (external ICS feeds). The Board-type calendar and Subscription calendars are particularly useful — no other plugin in this comparison offers them.
External Calendar Integration
This is where Calendar for Jira really shines. It offers 2-way Google Calendar sync, ICS export for Outlook and Apple Calendar, a JSON feed for developer integrations, and the ability to embed a public calendar URL accessible without Jira authentication. If your team lives in Google Workspace and needs Jira dates to show up in Google Calendar automatically, this is the best option of the three.
Other Features
- Drag-and-drop task rescheduling (when date fields are editable)
- Color-coding by user and conditional calendar rules
- Jira project versions displayed on calendars
- Dashboard gadget (supports up to 10 calendars per gadget)
- JSM (Jira Service Management) portal integration — embed calendars on customer-facing portals
- Calendar sharing with specific users or making them private
- Export security controls for admins
Limitations
- No resource timeline — DoItB offers "Timeline for Jira" as a separate product with its own pricing
- No PDF or Excel export — export is limited to ICS and JSON formats
- No linked issues on custom events
- No multi-language support
- No free tier — starts at $2.00/user for teams up to 10
Event Calendar for Jira (Aldeva Digital)
Event Calendar for Jira by Aldeva Digital has around 2,300 installations. It is the simplest of the three — a straightforward calendar for teams that need event management in Jira without the overhead of resource planning or complex configurations.
Views & Features
Event Calendar offers 3 views: Day, Week, and Month. Events can be created with custom types (holidays, vacations, out-of-office), and the plugin supports recurring events on a weekly, monthly, or yearly basis.
Strengths
- Email invitations: Send event invitations directly to participants — a feature neither of the other two plugins offers
- External calendar sync: Import from Google Calendar, Outlook 365, and ICS URLs; export to the same destinations
- Data residency: US and EU hosting options for compliance-sensitive teams
- Auto-generated project calendars from Jira projects
- Simple setup, minimal learning curve — good for teams that just want a calendar overlay without configuring timelines or resource groups
Limitations
- Fewest views — only Day, Week, Month (no Quarter, Agenda, or Timeline)
- No resource planning or timeline
- No drag-and-drop issue rescheduling
- No JQL-based filters
- No PDF or Excel export
- No multi-language support
- Highest starting price ($4.53/user for teams up to 10)
Pricing Comparison
All prices below are monthly per-user rates from the Atlassian Marketplace as of March 2026. Marketplace apps are billed annually, so these are the monthly equivalents.
| Team Size | Flexible Calendar & Timeline Planner | Calendar for Jira (DoItB) | Event Calendar (Aldeva) |
|---|---|---|---|
| Up to 10 users | FREE | $2.00 / user | $4.53 / user |
| 11 – 100 | $0.40 / user | $0.70 / user | $0.45 / user |
| 101 – 250 | $0.25 / user | $0.60 / user | $0.38 / user |
| 251 – 1,000 | $0.25 / user | $0.55 / user | $0.32 / user |
| 1,001 – 2,500 | $0.25 / user | $0.45 / user | $0.29 / user |
| 2,501 – 5,000 | $0.10 / user | $0.35 / user | $0.27 / user |
| 5,001 – 10,000 | $0.10 / user | $0.26 / user | $0.24 / user |
| 10,001+ | $0.01 / user | $0.14 / user | $0.21 / user |
Flexible Calendar is the lowest-cost option at every tier. For a 100-person team, that is $0.40/user vs. $0.70/user (Calendar for Jira) or $0.45/user (Event Calendar). Worth noting: Flexible Calendar’s price includes both the calendar and the resource timeline module, while Calendar for Jira’s timeline is a separate product with its own pricing.
Which Plugin Is Right for Your Team?
There is no single “best” plugin — it depends on what your team actually needs. Here is a practical guide:
Choose Calendar for Jira (DoItB) if:
- You need Google Calendar 2-way sync or Outlook/ICS integration — this is its strongest area
- You want to embed a public calendar accessible without Jira login
Choose Event Calendar for Jira (Aldeva) if:
- You need a simple calendar without complexity — minimal setup, smallest learning curve
- Email invitations to participants are important for your workflow
- You mostly need basic event management (holidays, PTO, meetings) alongside Jira issues
Choose Flexible Calendar & Timeline Planner if:
- You need resource planning and calendar in one app — not just viewing issues on a calendar, but planning who works on what across sprints, releases, or teams
- Cross-timeline scheduling matters — moving issues between sprints, fix versions, components, or assignees through drag-and-drop
- You want to link custom events to Jira issues (e.g., linking a “Product Launch” event to all related issues) and see those links on both sides
- You need PDF or Excel export for stakeholders outside Jira
If external calendar sync (Google, Outlook) is important for your workflow, note that Flexible Calendar does not currently offer that.
Data Security: Forge vs. Connect
One architectural difference worth noting: Flexible Calendar is built on Atlassian Forge, meaning it runs entirely on Atlassian’s own cloud infrastructure. Your data never leaves the Atlassian ecosystem and is not sent to or accessible by any external servers. Calendar for Jira and Event Calendar for Jira use the older Connect framework, where the app runs on the vendor’s own servers. For teams with strict data governance requirements, this may be a relevant consideration.
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Summary
All three plugins solve the same core problem — adding calendar functionality to Jira — but they approach it differently. Calendar for Jira is the most mature option with the best external integrations. Event Calendar is the simplest if you just need basic event management. Flexible Calendar & Timeline Planner goes further by combining the calendar with a resource planning timeline, cross-timeline scheduling that updates Jira fields, and features like the Issue Planner and bidirectional event linking.
We recommend trying the free tier or evaluation period for each plugin to see which one fits your team’s workflow in practice. Every team is different, and the right choice depends on whether you value external sync, simplicity, or resource planning capabilities.
Try Flexible Calendar & Timeline Planner
Free for teams up to 10 users. Calendar + resource timeline included.
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