Open the App Store and look at the size of the apps. It is common to see an app of simple function weighing 200, 400, 800 megabytes. It is not rare to pass a gigabyte. You download an app to do one thing, and it takes up on your phone the space of a film. Nobody finds this strange anymore. It became normal.
BLA apps are under five megabytes. It is not a feat of obscure engineering. It is the consequence of an earlier decision, about what the app should be. An app that does one thing, that does not carry libraries it does not use, that does not embed ad frameworks, that does not bring a tracking SDK, that does not package an AI layer nobody asked for, simply has nothing to be heavy from.
The weight of modern apps almost never comes from the function. It comes from what was hung around it. It comes from the trackers that report your behavior, from the ad frameworks that sell your eye, from the extra functions that came in because the competitor had them, from the AI added because it became the order of the day. Each of those things is a reason to exist that is not you.
When BLA decides not to put any of that, the size drops on its own. Five megabytes was not a goal pursued. It was what was left after removing everything that did not serve whoever uses it. The small number is the symptom of a decision, not its objective.
And the small number has concrete effects. The app downloads fast, even on a bad connection. It opens fast, because it has little to load. It does not fight for space on your phone. It updates without ceremony. It disappears from your list of concerns, which is exactly where an app of simple function should be.
There is also an effect of trust. An app of five megabytes is an app you can, in principle, understand whole. It has no basement, nothing to hide in the weight. The lean size is a form of transparency: what you downloaded is what the app does, and nothing else came along.
The industry got everyone used to accepting that software bloats. That each version is bigger than the last. That a heavy app is a serious app. BLA disagrees in practice, not in speech. The size of the apps of the line is the material proof that it can be done differently, and that doing it differently improves the life of whoever installs it.
Under five megabytes is not the title of a campaign. It is what happens when you decide, for real, to make an app that serves whoever uses it and nobody else. The weight is honest because the decision behind it is honest.