You might sideload an Android app, or manually install its APK package, if you’re using a custom version of Android that doesn’t include Google’s Play Store. Alternately, the app might be experimental, under development, or perhaps no longer maintained and offered by its developer. Until now, the existence of sideload-ready APKs on the web was something that seemed to be tolerated, if warned against, by Google.

This quiet standstill is being shaken up by a new feature in Google’s Play Integrity API. As reported by Android Authority, developer tools to push “remediation” dialogs during sideloading debuted at Google’s I/O conference in May, have begun showing up on users’ phones. Sideloaders of apps from the British shop Tesco, fandom app BeyBlade X, and ChatGPT have reported “Get this app from Play” prompts, which cannot be worked around. An Android gaming handheld user encountered a similarly worded prompt from Diablo Immortal on their device three months ago.

Google’s Play Integrity API is how apps have previously blocked access when loaded onto phones that are in some way modified from a stock OS with all Google Play integrations intact. Recently, a popular two-factor authentication app blocked access on rooted phones, including the security-minded GrapheneOS. Apps can call the Play Integrity API and get back an “integrity verdict,” relaying if the phone has a “trustworthy” software environment, has Google Play Protect enabled, and passes other software checks.

Graphene has questioned the veracity of Google’s Integrity API and SafetyNet Attestation systems, recommending instead standard Android hardware attestation. Rahman notes that apps do not have to take an all-or-nothing approach to integrity checking. Rather than block installation entirely, apps could call on the API only during sensitive actions, issuing a warning there. But not having a Play Store connection can also deprive developers of metrics, allow for installation on incompatible devices (and resulting bad reviews), and, of course, open the door to paid app piracy.

  • Riley@lemmy.ml
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    3 months ago

    If the Play Store becomes required like that then Android’s already-shaky status as an open source base platform is going to go out the window. I’m glad there are non-Google distros of Android but there really needs to be more of a push to make a completely FOSS phone platform.

    • IllNess@infosec.pub
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      3 months ago

      There are Linux phones available. I,m going to guess popularity of those devices to increase soon.

      • Vik@lemmy.world
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        3 months ago

        As much as I want that to be the case, I don’t think full mobile gnu+Linux is really ready to use daily?

        I haven’t exactly been keeping up with things, mind you

        • timbuck2themoon@sh.itjust.works
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          3 months ago

          I sub to a few mobile Linux feeds and I want but don’t at all think mobile Linux is ready, even for tech devotees. Too battery hungry, not enough ease of use, missing functions, etc. And that’s not including lack of apps.

          Sailfish gets closest so far I think. But yes, not ready. Ubuntu touch last time I tried is fine but still a bit out of sorts.

        • IllNess@infosec.pub
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          3 months ago

          Yes. I think a huge issue is Linux doesn’t handle other app activities like how Android’s Intent or Broadcast does.

        • kspatlas@lemm.ee
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          3 months ago

          Just a note, one of if not the most popular mobile Linux distro is PostmarketOS, which is not GNU (it’s based on Alpine)

          • Vik@lemmy.world
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            3 months ago

            Good to know, that’s not the one I had in mind, however.

            For whatever reason I thought PMOS was based on Manjaro. Could be something as silly as associating one green logo with another.

      • Dizzy Devil Ducky@lemm.ee
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        3 months ago

        Sadly the only people who would switch over to an actual Linux phone would be the people like the stereotypical Linux using Lemmy user. The average android user would just continue on like nothing happened because they’re not tech literate enough to know what’s going on or why they should care.

      • namingthingsiseasy@programming.dev
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        3 months ago

        But part of the appeal of Linux is the fact that you can repurpose existing computers running other OSes to run Linux instead. This is a great way to lower the barrier to entry for Linux, because it’s easy to test it on a Live USB or a dual boot. It’s much harder to do this on phones because they have locked bootloaders.

        Another problem is that phones are not productivity devices - they’re consumption devices. Maybe this is just my personal bias, but I don’t think people will be as passionate about liberating their phones because they’re inherently less useful than computers. Convenient, yes, but useful? Not as much.

        That said, I would love to be proven wrong. I would definitely consider a Linux phone if they become more popular/useful, but I can’t really justify spending hundreds of euros/dollars on something for which I don’t see any particular use.

      • XTL@sopuli.xyz
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        3 months ago

        There aren’t, really. There are a few antiques and half baked things.

        A big problem is that these days, unless you’re the size of Apple or Samsung, it’s impossible to get a reasonable hardware soc and modem other than one which only runs a soon obsolete blob laden android which is going to be EOL before you’ve even finished your design.

        The hardware is not there. The firmware/hw data/platform isn’t there even to begin OS work with. And there’s a global shipping, regulation and mobile operator hell waiting on the other side. And a product lifecycle that’s only a few years long.

        Yes, I’ve worked for phone manufacturers.

    • whats_all_this_then@lemmy.world
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      3 months ago

      The more I think about it, this may finally convince me to…shudders…switch to an iPhone. I’ve always stayed on Android because despite the recent Google bullshit, it still for the most part lets me do whatever. Side-loading apks is a huge part of that.

      If it’s turning into a shittier iOS clone, what’s the point?

      • Corkyskog@sh.itjust.works
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        3 months ago

        Don’t do IOS, it’s such a pain. It took us 2 days to figure out how to play an audio book file that I was able to download an F-droid app for and play in like 3 minutes.

        • whats_all_this_then@lemmy.world
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          3 months ago

          Yup that sounds about right for iOS.

          Meant more that if Android ends up in the same boat (and by the looks of it, that’s exactly what Google and Samsung want), then iOS starts to look viable because the situation becomes: all the same bullshit but iOS is polished to a shine.

          Don’t plan on switching phones until my less than year old Note 9 kicks the bucket 😅

      • vext01@lemmy.sdf.org
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        3 months ago

        Can you side load on ios?

        Seems like the kind of thing they wouldn’t want you to do?

    • FangedWyvern42@lemmy.world
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      3 months ago

      There are Linux mobile operating systems like PostmarketOS, but they are too early in development to be used by most people.

    • where_am_i@sh.itjust.works
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      3 months ago

      If someone would be buying those, someone would be selling. You have all the opportunity to fork current android, put it on a different platform, make sure all the drivers are open source instead of blobs, and sell it.

      I’d really want to buy one. But I’ll only do that after you somehow make sure the 3-5 major messaging apps, 2-3 major browsers, and a really good maps app are available.

      So, basically, it’s a 100 mil endeavor for an MVP really. So, I think, the chances of someone actually pulling it off are pretty slim.