Does Vacation Manager support half-day leave?

Yes, currently — its live Marketplace listing describes "half working day" options for hourly absences. That wasn't always the case: a dated 2020-10-07 review specifically requested automatic half-day deduction for recurring dates like Christmas Eve, a request its current feature set appears to have since addressed in some form.

Does Vacation Manager warn against assigning tasks to someone on vacation?

Yes — its listing describes exactly this as "Assignment Warnings." The distinction worth understanding: a warning fires reactively, at the moment someone attempts an assignment. OutSync's board-level "who's out" panel is visible before an assignment is even attempted, during the planning conversation itself.

Is Vacation Manager a legacy Server app forced onto Cloud?

It shipped Server/Data Center first and added Cloud later — its own review history has two separate, dated requests asking when a Cloud version would exist (2021-04-12 and 2021-12-09). Cloud support has since shipped. The review history is real evidence of that migration timeline, not speculation about the app's current state.

OutSync vs. Vacation Manager for Jira: A Cloud-Native Comparison

A real, functional app with a visible migration history

Vacation Manager for Jira carries 97 installs and a 4.09/5 rating across 11 reviews, verified against Atlassian’s Marketplace API. Its current feature set is more capable than a surface glance suggests, and it’s worth stating that plainly before the comparison: this isn’t a thin app being unfairly picked on. It’s a mature product whose own review history happens to be an unusually clear, dated record of a Server-to-Cloud migration playing out in public.

What Vacation Manager actually does today

Its live Marketplace listing describes a genuinely complete workflow:

Configurable vacation types, both one-time and recurring
A real approval workflow — request, then a supervisor decision
“Half working day” options for hourly absences
Global recurring or one-time holiday definitions
Coverage assignment — designate who covers for someone on vacation
“Assignment Warnings” — the system alerts when a task is about to be assigned to someone on approved vacation
Usage statistics and reporting, with CSV export
HR-side allocation of vacation days per user

That’s a real, thoughtful feature set — including its own version of guarding against exactly the ghost-resource problem, via assignment warnings.

The review history, read as a timeline

What makes this comparison worth writing isn’t a missing feature — it’s what the dated reviews show about how the product got here:

2018-02-12 (4 stars): “Very good & simple add-on. Does exactly what we need.” — an established, working Server/DC-era product.
2020-10-07 (3 stars): a specific, concrete ask — “possibility to take into consideration that christmas eve and silvester are ‘half work days’” with automatic deduction. A real gap at the time, later addressed by the hourly/half-day feature now in the current listing.
2020-09-17 (3 stars): “Plugin is good, but not compatible with Jira v8.12.1. When do you plan update?” — a live compatibility lag, the kind of maintenance friction that comes with running as an installed add-on rather than a Forge-hosted app that updates without a customer-side upgrade step.
2021-04-12 (3 stars) and 2021-12-09 (4 stars): two separate, direct asks — “Will this plugin be available for Cloud version?” and “Will there be a cloud version?” — a genuine multi-year wait recorded in the app’s own public review history, not a hypothetical concern raised for this comparison.

Cloud support has since shipped. The value of this timeline isn’t “the app is bad now” — it’s that a product’s review history is a real, checkable record of which architecture it was originally built for, and that history doesn’t disappear once a Cloud version ships.

Where the two tools still diverge today

Reactive warning vs. proactive panel. Vacation Manager’s assignment warning fires at the moment someone attempts to assign a task — a real safeguard, but one that only engages after an assignment decision is already being made. OutSync’s board-level “who’s out” panel is visible during planning itself, before any specific assignment is attempted — the difference between catching a mistake and never being positioned to make one.

One global holiday list vs. per-team, multi-region. Vacation Manager’s holiday feature is described as global recurring/one-time dates — a single shared calendar. OutSync configures a public holiday region per team (US, UK, or Germany today), which matters directly for any organization with teams spanning more than one country’s holiday calendar.

No Google Calendar sync. Neither the current listing nor any review mentions syncing approved leave to an external calendar automatically — OutSync’s optional Google Calendar integration is additive on top of whatever board-level visibility both tools aim for.

Choose Vacation Manager when

Coverage-assignment (designating who backs someone up) and reactive assignment warnings cover your team’s actual workflow.
A single, org-wide holiday calendar is sufficient — your teams don’t span multiple public holiday jurisdictions.

Choose OutSync when

You want availability visible during planning, not just a warning at the point of assignment.
Your teams span more than one country’s public holidays and need that handled per team, not as one shared list.
A Forge-native app that updates without a version-compatibility lag matters to your maintenance overhead.