It is clear that the official Android application store, the Google Play Store, is the best place to find apps. However, there are other equally interesting alternatives that can especially help us in the event that we have a device not certified by Google or in which it is not possible to install the official store.
There are countries where the Google Play Store is banned, or at least where it doesn't allow the installation of a significant number of apps. To avoid this problem—and many others—there are a number of ways to avoid it. alternatives which you can access for free and get many of the advantages of the official Android store. We leave you with a selection of the best.
Before you start, it is worth remembering good practices: always download from official sources from each store, check ratings and permissions, and avoid installing packages whose origin you cannot verify. Also, some stores do not depend on the Google Play services, something useful if you use mobile phones without GMS.
Getjar
It has one of the most complete repositories of free applications to download. It has a series of filters for searching apps In addition to Google Play Store-style categories and subcategories. To install it, all we have to do is visit the platform's mobile website, something that we can also do on iOS, BlackBerry or Windows Phone (it is a store compatible with several platforms). If that seems little to you, it has a rewards system which offers free paid applications, in addition to its updates.
Over time, its catalog has varied by region and popularity, so it is advisable to access its mobile web to check current availability and verify the signature of downloaded APKs.
Slide Me
The great advantage of this store for Android is its system voting and testing Since all published apps are pre-tested to avoid spam and fraudulent apps, it's available in multiple languages and can be installed from the SlideMe website.

His focus on manual healing It helps filter out low-quality software. Still, it's a good idea to check compatibility with your device and Android version, and read community comments.
Amazon Appstore
The truth is that the Amazon App Store is one of the best alternatives, as we find hundreds of apps, both paid and free. They are organized into various categories, including new releases in the last 30 or 90 days, and we also find user ratings. To install this store, we can scan the QR code from Amazon's own website when searching for the website on Google –to use the application we will need to have a company account–.

A key advantage is that many of its apps do not depend of Google Play Services, allowing in-app purchases such as books and music in more complete versions. Please note that its availability on non-brand devices may change over time, so it is advisable to consult the current conditions.
Aptoide
Is one of the most used Google Play alternatives by users who cannot install the official Play Store on their Android devices. The truth is that it has a similar appearance but has a rather notable problem: the constant appearance of fraudulent applications, especially those that promise to be "free"—we're referring to those that are actually paid and aren't offered as such. (Download)

Its catalogue is huge and has an editorial section with recommendations and featured games. To minimize risks, use official repos, activate the app protection and avoid unverified third-party “stores” within the platform itself.
F-Droid
The last alternative that we are going to offer you today is quite particular since it offers applications that are free and open source (Open Soruce), which allows any user to use or copy the software whenever they want. Unlike the others, F-Droid is funded through donations and does not have a system of reviews.

In addition to your main repository, you can add sources such as IzzyOnDroid to expand the catalog. Its clients allow you to update apps privately and without trackers, ideal if you are looking for free alternatives to Google services.
Aurora Store
Aurora Store It is an open source store that acts as a client for downloading free apps with a very polished interface. Its search engine allows filter by downloads, assessment, presence of ads o integrated shopping and, in addition, by apps that depend or not on the Google Services Framework, useful on phones without GMS. The app can be obtained from the official website.
Uptodown
This platform offers a web version and its own app to download and to update applications in a simple way. It is a very popular alternative to discover apps and games that you can't find in other stores, with analysis and registration of previous versions.
APKMirror
More than a store, it is a repository Maintained by the Android Police team. Ideal for downloading a specific update or earlier versions, although you do need to know the package type (APK/Bundle). For App Bundles, you'll need APK Mirror Installer to install safely.
AppGallery
Shop for Huawei can be installed on any Android from its official website. It integrates a apk installer and a catalog that grows frequently, although some popular apps may be missing depending on the region. As a bonus, many apps don't depend on the Google services.
Obtainium
An “all in one” of open source that allows you to install and keep apps updated directly from your original sources, without its own repository. It is compatible with GitHub, GitLab, Forgejo, F‑Droid and third-party repos such as IzzyOnDroid, plus APKMirror and even AppGalleryIt's free, updated frequently, and has translation to Spanish.
App Finder (add-on)
It is not a store, but a Advanced search engine that powers the Play Store with very useful filters: it allows you to see at a glance if an app is park for free, if included micropayments and what type. Ideal for discovering new developments with greater precision.
As you can see, the Google Play Store has several alternatives and, although we have not offered you all the existing ones, the truth is that Android is characterized by the variety which we can access. Do you use any of these unofficial stores?
Choosing between these options depends on what you need: if you are looking for FOSS and privacy, F‑Droid and Aurora Store are excellent; if you want massive catalog, Uptodown and Aptoide shine; for specific versions, APKMirror is a reference; and if you want to unify installation and updates Obtainium saves time by installing from multiple sources. Always install from official sites and verify signatures to keep your device secure.