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So, it’s been another month on the app store. We left the previous month with the app being featured in the “What we’re playing” section in various European countries. This had boosted sales in the UK up to the exciting heights of around 200 a day. Worldwide this pushed sales up into the 300s.

I must admit, I was pretty happy with this, I knew that it was never going to last, as soon as the app stopped being featured sales would go down - and as expected the app disappeared out of the featured list after a week or so and sales started to decline pretty quickly in the UK. Fortunately other countries stepped in and kept global sales at a good level.

Around this time I released a new version with a new icon (designed by the great guys at icon design). Take a look at what happened next:

<img style=”cursor:pointer; cursor:hand;width: 400px; height: 315px;” src=”” border=”0” alt=”“id=”BLOGGER_PHOTO_ID_5327972554399636466” />

Suddenly all the sales up to the 14th April look a bit silly. Finally the app has broken through into the US market - featured in the “New and Noteworthy” section of the US app store. I think this really demonstrates the power of appearing on the front page of the app store and in the featured list of the store on the phone itself.

So, there’s not quite as many charts in this month’s update - mainly because the only really interesting thing that has happened has been the US sales. Here’s a breakdown of sales by country (I’m only showing the top 10 here):

<img style=”cursor:pointer; cursor:hand;width: 400px; height: 275px;” src=”” border=”0” alt=”“id=”BLOGGER_PHOTO_ID_5327973782286689474” />

I’m sure that this would look different if the app was localised to each country - being only available in English probably limits the appeal.

For those of you who like to know how close I am to buying that yacht and retiring to my own private island:
<table><tr><td>Sales to date:</td><td>14970</td></tr><tr><td>At 99cents per unit</td><td>$14820.30</td></tr><tr><td>Less Apple’s 30% cut</td><td>$10374.21</td></tr><tr><td>USD to GBP (according to google)</td><td>₤7088.15</td></tr><tr><td>After tax of 40%</td><td>₤4252.89</td></tr></table>

Still some ways to go!

As always, if you’ve got any questions or are interested in more details just drop me a message on the support email ( Or just leave a comment on this post.

Now it’s time to get on with the next release. Version 1.5 should be submitted to the app store this weekend/start of next week.

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Chris Greening


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A collection of slightly mad projects, instructive/educational videos, and generally interesting stuff. Building projects around the Arduino and ESP32 platforms - we'll be exploring AI, Computer Vision, Audio, 3D Printing - it may get a bit eclectic...

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