#DOWNLOAD SMALL SIZE MOVIES FOR MOBILE INSTALL#
To our best estimate, the gap between the two lines is covered by a 10% instantaneous install rate drop across the cellular download limit. Above the cellular download limit we estimate a linear decrease in install rate of 0.32% per MB. (Note: the conversion rate can be greater than 100% due to installs direct from search results that skip product page view.)įrom these results we estimate a linear decrease in install conversion rate below the cellular download limit from 3–99MB at 0.45% per MB. In particular, there was a substantial drop around the cellular download limit (~100MB), above which Apple does not let users download the app over 3G or 4G. With the larger app sizes, we saw substantial losses in product page to app install rate. To quantitatively measure the impact of each successive bloating, we looked at data provided directly by Apple in iTunes Analytics specifically conversion from “Product Page Views” to “App Units” (or colloquially “installs”/”install rate”). For the purposes of our experiment, we just bloated the app with a ton of hidden album art from our engineering team’s favorite artist. In the real world, app sizes can increase substantially with the addition of seemingly simple things, like an SDK, an explainer video, a bunch of fonts, or a beautiful background picture for your loading screen.
Then, without making any additional changes, we bloated the app from 3MB to 99MB, 123 MB and then finally 150MB, observing the isolated impact on install rate with each change in app size. It was a minuscule 3MB, had a steady pattern of organic installs (~50 installs per day for several years), and had no active marketing activities. So, we bought the Mortgage Calculator Free iOS app through some friends in the YC Founders network. To the best of our abilities, this would simulate the impact of SDK bloat, or anything else that just makes an app bulky. Then we needed to increase the app’s size, leaving everything else constant, and observe the impact on app install rate. To measure the impact of increased app size, we needed to buy a small app, with no active marketing activities but significant steady downloads. So, over the last few months we’ve done some extensive research into these issues… and in this article we’re going to share some new experimental results on how app size affects install rate. Are we sure app size reduces installs? How big is the effect? While it makes intuitive sense that a large app download size would demotivate people and reduce installs, we wanted to dig deeper into these reasons and really assess the quantitative impact.
Often their SDK vendors are unprepared for major iOS version upgrades, blocking key releases and big announcements.
Occasionally their SDK vendors have bugs that crash their app, giving them bad reviews and lowering installs. They’re up against the 100MB app size cellular download limit, and they need to find ways to reduce the size of their app so that they don’t take a hit on installs. A few months ago we were at a conference in Half Moon Bay talking with a general manager at a large mobile company, and he said, “One of my projects for the next six months is to reduce SDK bloat in all our apps.” Six months is a substantial investment! So we asked why this mattered so much to him.
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