Klaus’s daughter, Sofia, a tech journalist in Argentina, had delivered an ultimatum. "Papá," she said, sliding her Samsung Galaxy Tab across the table, "I was reviewing a student’s thesis on this. I needed to highlight a contradiction in paragraph four. I had to screenshot, open a drawing app, annotate, save, and re-import. It took six steps. Pointofix does it in one click… on Windows. Here? Nothing."
Klaus smiled and pushed the app to the Google Play Store. The description read: "No subscription. No tracking. Just a digital highlighter for your finger. Because ideas don’t wait for you to find a mouse."
Sofia tested it on a live call with a source. As the interviewee rambled, she drew a time-stamped blue bracket around a key quote, added a floating question mark, and exported the annotated screenshot directly to her notes app. She didn’t break eye contact with the screen.
But Pointofix had a problem: it was a desktop ghost in a mobile world.
"That," he grins, "is Pointofix. Anywhere. Finally." Moral of the story: Sometimes the best innovations come not from building something new, but from liberating something old—giving it the freedom to show up where it’s needed most.
Within three months, Pointofix para Android had half a million downloads. A biology teacher in Jakarta used it to label frog anatomy on a live video. A detective in São Paulo circled inconsistencies in bodycam footage. A grandmother in Seville taught her grandson fractions by drawing pizza slices over Netflix.
Klaus adjusted his glasses. "Android is a different beast. No mouse. No hover. No F2 key."
Flow. Not control.
That night, Klaus opened Android Studio for the first time in years. The IDE felt alien—Gradle files, permissions, touch events. He started simply: a transparent overlay that could capture the screen. By morning, he had a floating button that drew a shaky red line. It was ugly. It lagged. But it was Pointofix .
"See that typo in 'croissant'?" he says, pulling out a stylus. With a swipe, a neon green circle appears around the errant 's'. A small arrow points to the correct spelling.
The real battle came two weeks later. Klaus wanted the "magic zoom"—Pointofix’s signature feature where you circle an area and it instantly magnifies for fine detail. On Windows, it was trivial. On Android, every touch coordinate fought against system UI, keyboard pop-ups, and the notorious "screen overlay detection" that made phones scream.
In the chaotic summer of 2023, a seasoned German software developer named Klaus found himself in a small Buenos Aires café, nursing a cortado and staring at his Android tablet. For fifteen years, Klaus had been the quiet guardian of —a beloved screen annotation tool for Windows. Teachers used it to draw neon circles around grammar mistakes. Architects sketched over blueprints. Grandparents learned to click "the big red arrow."
"So teach it to use a finger," Sofia shrugged. "Or a stylus. The world has changed."
He nearly gave up at 3 a.m., defeated by a single line of code about SurfaceView and Z-order . Then he remembered his own user manual: "Pointofix is not about power. It is about flow."
