Comparing Leave Trackers: Spreadsheet, Standalone App, or Built In

Someone asks for two weeks off in June. Finding out whether they can have it takes a manager three messages, a scroll through a shared file, and a guess. That is the problem a leave tracker is meant to solve, and most of them only solve part of it.

Here is the short answer. A spreadsheet is fine while one person approves everything and the rules are simple. A standalone leave app earns its price when balances, carry over and different policies start producing wrong numbers. A leave module built into the same system as your projects is worth it when the people planning delivery need the answer without asking anyone.

Judge them on three things

Most comparisons list features. Features are not the problem. Three questions decide it:

• Approval speed. How long between a request and a yes or no? Measured in hours or days, not clicks.
• Accuracy at year end. When someone leaves or a year closes, does the balance match what a payroll person would calculate by hand?
• Does the project side see it? When a delivery lead plans next month, is the leave already visible on the plan, or do they have to go and look somewhere else?

The third one is where most setups quietly fail. Leave data can be perfectly accurate and still useless, because it lives in a place the people making commitments never open.

When the spreadsheet genuinely wins

This gets dismissed too quickly. A spreadsheet is the right answer when:

• The team is small enough that one person knows everyone's plans anyway
• There is one leave policy, not five
• Nobody accrues leave month by month, they just get an annual number
• Requests are rare enough that a message is a reasonable approval flow
• Nobody is trying to build a report out of it

Under those conditions a shared sheet is faster to change, costs nothing, and everyone can already read it. Buying software to replace it adds a login and removes nothing painful.

The spreadsheet stops winning at a fairly clear moment: the first time two people disagree about a balance and neither can prove they are right. That is the signal that the calculation, not the storage, is the problem.

Where a standalone leave app pays for itself

Standalone tools are built for the messy parts. Accrual by month worked. Carry over caps. Public holidays that differ by office. Different entitlements by grade or tenure. Half days. Sick leave that follows different rules from annual leave.

These are all easy to describe and genuinely hard to calculate by hand every time. If your policy has more than one of them, a dedicated tool will be more accurate than a sheet and much faster than a person. Whether a dedicated HR tool is worth it for a twenty person team is a related question with its own answer.

What you get with it is a second system. Another login, another export, another place the truth lives. That is fine if the people who need leave data are HR and finance. It is a real cost if the people who need it are running projects. That is a project tool plus an HR tool, and the join between them is the part that costs.

When built in is the one that matters

Built in means the leave records and the project records are the same records, not two systems that sync.

The difference shows up in ordinary moments. A delivery lead drags a task into next month and can see that the person assigned to it is away for half of it. A manager approving leave can see what that person is committed to before saying yes. Nobody has to remember to check.

This is what SicherOne is for. It puts project management, HR and AI agents on one set of records, so a board already knows who is on leave and an agent working on a plan has the full context rather than half of it. Any output an agent produces is approved by a human before it ships. It is sold per seat and the modules are separable, so you can take the parts you need.

The honest caveat: this only pays off if both sides are actually in the system. If your projects live somewhere else and are not moving, a built in leave module is just a standalone app with extra steps.

How to choose in ten minutes

Ask two questions.

First: in the last three months, has anyone been given a wrong leave balance? If yes, you have a calculation problem and you want a real tool.

Second: in the last three months, has anyone committed to a date and then discovered the person doing the work was away? If yes, you have a visibility problem and you want the leave data sitting next to the plan.

If neither has happened, keep the spreadsheet and spend the money elsewhere. If both have, price it carefully, because per seat costs behave differently for a team that grows in bursts.