Few words before we start:

Step-by-step guide

Step One

Step Two

Step Three (the most important)

Step Four

Step Five (the final step)

Pay attention to

This is aThe guide will be useful for:1) Webmasters with APK store sites/blogs2) Webmasters with APK file sharings3) Uploaders and people that share APKs via social networks, torrents or whatever4) People looking for a new way to monetize their blogs/sites/groupsI have a couple of sites where I publish Android apps and games (APK files). The profit from ads is fine, but the biggest problem was that I didn't get anything from installs. I used to waste around 2-3K installs a day before I found this method. But today to monetize my installs I addto APK files.In other words, SDK is like a link or script that people add to their sites to show ads. But in the case of SDK, you integrate ads right in your apk files. When users download and install these apps they see ads like this:Find apps that will give you a lot of installs.For those who have apk stores that will be easy, just study your download/page visit statistics. If you don’t have an apk site or need some fresh ideas - search for “top android apps for...”. Study list of top/most popular apps of other apk stores. At least you need to find 10-20 apps. It will be enough for the first time. But remember: more apps → more installs → higher profitFind ways how to share appsFor APK store owners it will be less interesting, but I will describe it anyway.It is great if you have your own file hosting, but if you don’t, use public file sharings. Use services that allow making multi-uploads to different file sharings at the same moment. It saves your time.I have my APK store sites, a couple of accounts in FB, twitter, and other social networks. If you don’t have a site - use social networks, write posts like “top 10 apps for ...” or mention popular apps and titles to attract more attention, for example, “Best apps if you like Pokemon Go”Add a custom SDK to your APK filesTake into account the following recomendations searching for a custom SDK.you should know how to code to add SDK (I have a poor knowledge). But even if you know that, it will take a lot of time to integrate. Let’s say you have 20 apps, and as far as I know it takes about 30-60 minutes for one app – 20 apps * 30 minutes = 10 hours. I think you don’t want to waste your time. There are only a few nets that have automatic converters.most of the networks are not very tolerant to this monetization technique. It’s extremely easy to get a ban and payment block if someone will claim that you don’t have usage rights. In my case, it happened during the second/third week of using SDKs of some big networks. But anyway it is possible to find a few more liberal networks.So when you will search for a "custom SDK", take into account these recomendations.Upload the files with SDK to your sites/groups/…Just follow recommendations in Step Two. Do you best to attract more users. Test and experiment with new methods to share files, and you will find your niche.Track your profit.Results of my first week sharing APKs with custom SDKOne month laterThe revenue that I received1) You can not earn much with a couple of installs per day. You need at least 200-500/day. Pay attention to GEO: US is much profitable as usual2) Be careful choosing network: first, be ready that not all networks will share SDK with you. Second, they should have automatic converter, that will save your time3) Try, test, experiment to find your niche. There are about 3 billion android users in the world and the number is growing, so you will find your users