Enigma simulator ios franklin heath7/25/2023 ![]() ![]() The enciphered letter is also printed on a paper tape, shown just above the lamps. This shows the enciphered result of the letter you pressed.ģ. In the middle part of the machine one of the lamps marked with a letter lights up. In certain positions some of the other rotors may also move.Ģ. ![]() The right-hand rotor moves round by one step. Pressing and holding a key does three things:ġ. To change which letter is showing, push/drag the serrated wheel at the right of each letter up or down to rotate the ring and the scrambling wiring inside it. On smaller devices like phones, the layout is "scrunched up" to make best use of the space available on bigger devices such as tablets, the spacing between the keys and indicators is more realistic. In summary, it’s still “early days” in terms of fund-raising, but we are very pleased with the reception so far, including 20 reviews on Google Play with an average of 4.Designed to give the experience of using a real Enigma machine, as far as possible within the limitations of a flat screen. Interest from the UK, Germany and Poland is expected, as these countries have close historical associations with the making and breaking of the Enigma machine, but it is encouraging to see downloads from many other countries around the world, with a particularly strong showing from the USA. The final observation was that we have been pleasantly surprised by how widespread interest has been internationally: In retrospect, we could have launched for just the most popular Android versions (68% of downloads are on 2.x) and the most popular screen size (45% are normal-hdpi, similar to the Nexus One), but as the larger tablets (xlarge-mdpi, 13% of downloads) are the closest to experiencing the authentic proportions of an Enigma machine, I don’t regret the extra effort. On the donations side, the donation button is buried in the “About” screen which many users may never go to I don’t want to make it too “in your face”, but I think a nag screen could be appropriate, for instance when users upgrade to a new version (189 users have upgraded, but only 22 in all have donated).Īnother observation was that we have experienced the pain of Android fragmentation I estimate 80% of the development effort went in to supporting multiple Android versions and screen sizes. I have some ideas on providing continuing content, which people can amuse and educate themselves by decrypting. On the advertising revenue side, those 1,200 downloads have resulted in about 15,000 ad impressions, which suggests people aren’t using the app for long periods. I also think there are some things we can do to improve the average revenue per user. On that basis, I would do better standing on a street corner rattling a collection tin! That said, we’ve had essentially no publicity so far so, if we can get the word out, that revenue could grow significantly and start making a real difference to the Bletchley Park Trust. At the time of writing, we’ve had around 1200 downloads over 9 weeks, and our best week’s revenue so far was just a little over £3. ![]() Of course the obvious fact is that the current revenue is very small. This chart shows the numbers of downloads in the few weeks following the app’s release on Google Play (green line) and the revenue breakdown between adverts (dark blue) and donations (light blue): I was privileged to present our Enigma simulator app at the Mobile Monday London Demo Night last night it was pretty nerve-racking, doing a live demo in front of a vocal crowd of 200 knowledgable people with a strict time limit of 3 minutes, but happily the response was enthusiastic and positive!Īpart from giving everyone a quick lesson in how to use an Enigma machine, the main aim was to share the progress so far of our experiment, using in-app advertising and in-app billing for charity fund-raising. ![]()
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