Android Developer Verification: What It Blocks Now, and What Comes in 2027

Short answer, as of 2 October 2026: since 30 September 2026, Android phones and tablets with Google Play in Brazil, Indonesia, Singapore and Thailand check whether apps installed from seven app stores come from a verified developer. Apps you download in a browser, including every APK on this site, and apps from F-Droid, IzzyOnDroid or GitHub, aren’t checked yet. Google’s FAQ says: “if users sideload your app directly, these new verification requirements won’t apply to your app yet.” Google plans to extend the check to all apps on certified devices in 2027, without a date so far.

What changed, and when

Date	What Google announced or did
25 August 2025	First announcement: from September 2026, “any app installed on a certified Android device” in the four countries would need a verified developer
November 2025	Promised an “advanced flow” that lets experienced users install unverified apps anyway
18 June 2026	Narrowed the start: only installs from seven participating stores are checked
August 2026	The advanced flow and free limited-distribution developer accounts launched
30 September 2026	Checks begin in Brazil, Indonesia, Singapore and Thailand, for the seven stores
2027	“Verification capability will be expanded globally for all apps on certified Android devices”

The seven stores are Google Play, HONOR App Market, OPPO App Market, Samsung Galaxy Store, Transsion’s Palm Store, vivo’s V-Appstore and Xiaomi GetApps. Google adds that the check “will soon be expanded to all third-party Android app stores”. If you have read that every APK would be blocked in Brazil from September 2026, that was the August 2025 plan, which Google has since changed.

Which phones it applies to

• Certified Android devices, the ones that ship with Google Play. Google’s help page says that devices running the Android Open Source Project, and devices that aren’t certified, “are exempt from this requirement”.
• Phones and tablets. Outside Google Play, Google’s FAQ says, “enforcement will only apply to mobile and tablet form factors in the selected regions”.
• Android version: Google’s developer pages say Android 7 and higher; its help page for users says Android 8 and up. The updates arrive through Google Play services, not as a system update.

What is “Android Developer Verifier”?

It is the system service that does the checking. Google’s help page: “a Google system service called Android Developer Verifier (package name: com.google.android.verifier) is installed on your device. The service validates that an app is registered to a verified developer.” It arrives with Google Play services, which is most likely why many people find it on their phone without having installed it.

If an install is blocked

According to Google, “you’ll get a notification and you won’t be able to install the app”. You can still install it in two ways.

The advanced flow (on the phone)

From Google’s help page:

1. Turn on Android’s developer options.
2. Open Settings > System > Developer options and turn on Allow apps from unverified developers. On a phone set to Portuguese: Sistema > Opções do desenvolvedor > Permitir apps de desenvolvedores não verificados.
3. Follow the instructions. They include “a 24-hour security delay”. Google’s FAQ adds that you confirm you aren’t being coached by someone, restart the phone, and confirm with your fingerprint, face or PIN after the wait.
4. After the delay, choose to keep the advanced flow on for seven days or indefinitely.
5. Install the app. You still get a warning; tap Install anyway (Instalar mesmo assim).

Google says the waiting period is there to protect you from scammers who pose as banks or support staff and talk people into installing malware. If someone on the phone is telling you to do this, stop.

Keep in mind that, per Google’s FAQ, unregistered apps can only be installed or updated while the advanced flow is on, or over adb. Turn it off, and updates to those apps will fail.

adb (from a computer)

Installing over USB or wireless debugging with adb install isn’t affected. Google’s FAQ: “there are no changes to how ADB works… The waiting period does not apply to ADB installs.”

F-Droid, IzzyOnDroid and open-source apps

• Today: not affected. They aren’t among the seven stores, and the check doesn’t cover apps downloaded directly.
• What Google asks of open-source developers: its guide says they “don’t have to register” to keep distributing on open-source platforms, but that registering “will let your users continue with the same install experience they have today”. In other words, from 2027, apps whose developers haven’t registered will most likely need the advanced flow or adb on certified phones.
• F-Droid’s position: it says it “cannot ‘take over’ the application identifiers” of the apps it distributes, and it advises developers against registering: “We unequivocally advise against signing up for this program, now or ever.” IzzyOnDroid’s site shows a banner pointing to the Keep Android Open campaign.

Each developer decides whether to register, so after the 2027 rollout some open-source apps will install normally and others won’t. Google hasn’t said yet how the 2027 rollout will work in detail.

A different block you may already see: Play Protect

Not every blocked install is developer verification. Since 2024, Google Play Protect has run an “enhanced fraud protection” pilot that blocks apps installed from a web browser, a messaging app or a file manager if they request permissions often abused for fraud: receiving and reading SMS, reading notifications, and the accessibility service. Google said in January 2025 that the pilot was active in nine regions, Brazil and Thailand among them.

So an app that uses an accessibility service, such as Key Mapper, can be blocked by Play Protect when you install it from a browser in Brazil, even though developer verification doesn’t apply. Google says Play Protect “may prevent an application from being installed that is unverified and uses sensitive device permissions that are commonly targeted by scammers to commit financial fraud”. We haven’t tested this on a phone in Brazil.

On this site

Every app here is a direct download, so as of 2 October 2026 none of them is affected by developer verification. Each app page shows who signed the file and where it comes from; see how to check an APK’s signature. We will update this page when Google publishes the details of the 2027 rollout.