Wordrive understands itself and reporting Apple

    Last time, I  started talking about my own experience in promoting Wordrive in the AppStore and the intricacies associated with it. The material turned out to be interesting to the audience, we will continue.

    Today I will touch on the topic of statistics. In the comments to the previous article, I tried to find the answer to the question - what exactly is “yesterday” in terms of the App Store statistics system? It turned out to be not so obvious.


    Not everything is clear from the documentation: there is an indication that Europe uses the CET time zone, and for the Americas PST and that statistics will definitely be available 10 hours after the end of PST. This did not answer the questions whether yesterday is PST day, or whether this concept depends on the country ...

    In this article I will explain. Perhaps they will seem trite to some, then it means that some of these have “outgrown” my article. But on the RIF, on the net, I “tormented” many people with this question and no one could give me a clear answer. So I will assume that my research may be useful.

    So, the Apple documentation (namely, iTunes / App Store Reporting Help 2.0 ) states the following (I quote literally with a technical translation into Russian):
    • A day in terms of the Apple AppStore is the time period from 12:00:00 am to 11:59:59 pm in the time zone used "for this territory" (see table below)
    • Week  - Monday 12:00 am to Sunday 11:59 pm
    • What time are the reports based on?
      US, Latin America, CanadaPacific Standard Time (PST)
      Europe, Middle East, Africa, Asia, PacificCentral Europe Time (CET)
      JapanJapan Standard Time (JST)
      Australia, New ZealandWestern Standard Time (WST)
    • When are reports available? Reports are generated after closing operations in the last time zone (which is PST). Consequently, reports are usually available around 10:00 am PST for the previous day or week. Earlier access to reports for other time zones (for which operations have already been completed) is not available.


    In the end, a little is clear. What is meant by territory? The territory of registration of the author of the program or the territory where the sale was made? Both options have a right to exist - but the numbers will be different.

    There was an update or an ad campaign yesterday. At what day should we expect its response in the form of increased sales - today, tomorrow or the day after tomorrow?

    I dug up the entire Internet, but did not find an intelligible answer to the question. Therefore, the reflections below lay claim to an opinion, I hope, turning into the truth.

    First, let's remember about time zones. Apple's documentation cited above mentions PST, CET, JST, and WST.

    • PST is the so-called Pacific Standard Time. It is 8 hours behind Greenwich (GMT + 8). This is the latest time zone of continental America.
    • CET is the so-called Central European Time. It is valid in most European countries.
    • Western Standard Time is one of the time zones in Australia.
    • JST - Japan Standard Time, time in Japan.
    • GMT / UTC is GMT. The time corresponding to the time zone passing through a piece of the UK.


    There are many countries where the summer time is transferred back and forth by an hour, so for each specific country the scale can be shifted relative to GMT differently at different times of the year. But we can neglect this for now so as not to complicate the thought.

    Look at this picture:


    If the territory is the territory of registration, then we refer to Europe, and the data is collected by CET time. CET time differs from Moscow time, as can be seen, by three hours. Therefore, in this case, the statistics will be three hours behind the calendar day, that is, the data for yesterday will, in fact, be the data for the  24-hour period ending today at three in the morning. BUT THIS IS NOT BECAUSE THE ASSUMPTION IS WRONG. More precisely, it is not so for sales in other territories except Europe and Russia.

    Under the territory, as I was able to understand, we mean the territory of the purchase of the game . Accordingly, “Yesterday” means the time corresponding to yesterday for the time zone selected for the territory of sale of the copy of the game.

    As a result, we have under “yesterday” what is highlighted in the figure in yellow. And  in the projection for Moscow time, this “yesterday” takes 42 hours, almost two days! . But for each country of these 42 hours there are 24, for which sales are taken into account.

    It follows that Russian and European sales are recorded for a  24-hour period from 3 a.m. yesterday to three a.m. today , Moscow time. American sales - from noon Moscow yesterday to noon Moscow today.

    For example, for my Wordrive game on Saturday, April 23, at 6:44 am Moscow time, the first update was released - interface flaws were fixed and the content was slightly expanded. At the same time, the statistics that I received at 15:30 on the same Saturday include figures on updating the previous version by users from the USA as data for “yesterday”. Because at the time of 6:44 in the USA there was still six hours in the PST time zone before the closing of “YESTERDAY”.

    I’ll end the article with one of the expressions in the topic from the Wordrive updates released this morning: “ Time reveals everything hidden and conceals everything clear ”. So it’s always useful to understand it.

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