Everything is recorded
Every app you download from an official store is permanently recorded in your purchase history. It doesn't matter if it's free. It doesn't matter if you delete it a minute later. The record remains linked to your account: what app it was, when you installed it and on what device. If you share a family account, any family member can see it.
This isn't a bug. It's how app stores normally work. They're designed to keep a record of everything, because that record is useful for offering updates, restoring apps on new devices and, of course, billing purchases. But it has a side effect that many people don't know about: any app you install is permanently associated with your identity.
Does that matter?
It depends on what you're installing. If it's a game or a weather app, probably not. But if it's a private messaging app, a mental health app, a legal advice app or anything else you'd prefer to keep to yourself, the simple fact that it appears in your history is already an information leak. Not about what you say inside the app, but about the fact that you use it.
Think about it this way: you don't need to read someone's messages to know something about them. Knowing what apps they have installed already says a lot. A dating app, a job search app, a private chat app. The name of the app already tells a story.
Apps that don't go through the store
There's a technology that allows installing applications directly from the browser, without going through any store. They're called PWAs — Progressive Web Apps. They work exactly like a native app: they have their icon on the home screen, they send notifications, they work offline. But they don't leave any record in any purchase history, because they never went through a store.
When you delete a PWA from your device, everything disappears. The icon, the data, the cache. No trace remains in your account. Nobody — not your phone manufacturer, not your account provider — can know that you ever had it installed. The only person who can see it is someone holding your phone and looking at the home screen.
Are there any downsides?
Yes, one. You have to install it manually. Instead of searching the store and tapping "Install", you open the browser, visit the website and choose "Add to home screen". It's two extra steps. In return, no record is left anywhere. It's a fair trade if privacy matters to you.
The other consideration is that your data vault lives inside the browser where you installed the app. If you switch browsers, you start from scratch. It's like a safe built into a wall: if you move house, the safe stays. But that, more than a disadvantage, is a guarantee: your data is where you put it, and nowhere else.
The record that doesn't exist
There's a fundamental difference between deleting a record and the record never having existed. When you delete an app from the store, the record is still there. When you delete a PWA, there's no record to delete. There never was. That difference seems subtle, but it's enormous.
Because true privacy isn't being able to erase your footprints. It's not leaving them.