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by Almar Klein | published 02-01-2022 | last edited 02-01-2022

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2021 report

The year has closed - it's time to reflect.

A new brand, becoming open source

Early in 2021 TimeTagger was rebranded with a new style and name (it was previously called TimeTurtle). It was also made open source. It has been well received, and the Github project has 312 stars at the time of writing.

New features

Many new features have been added in 2021. To name a few: instruction videos, support for setting targets, tag suggestions and presets, Pomodoro, etc.


We've seen a slight increase in paying users. The total revenue of 2021 was €256.

The costs are broken down as follows:

The total costs are approximately €551. I have not included advertising costs here, which are a multitude of that. Of the advertising costs, €867 was spent on EthicalAds, which indirectly helps fund ReadTheDocs.

Contributions to open source

I've pledged to contribute at least 10% of profits to the open source projects that power it. Because the costs are still higher than the revenue (i.e. the profit is negative), I have not made any monetary contributions for this year.

We have still contributed to open source with the TimeTagger project itself, as well as by maintaining the tools we use, including asgineer, itemdb, and pscript.