LGKA+ running on iPhone

School, without the
PDF hunt.

Substitution plans, timetables, news and the Karlsruhe weather — for everyone at the Lessing-Gymnasium. One app, no account, on iPhone and Android.

Free·No account·No tracking·Built with Flutter

Setup

Ten seconds, then it stays out of your way.

Pick your class once. There is no account, and nothing to sign up for. The app remembers, and every screen after that is one tap from opening it.

Substitution plans

Today and tomorrow, before you leave the house.

The plan for both days is on the first screen, cached so it opens instantly and refreshes itself in the background. No login wall, no PDF pinch-and-zoom just to find your class.

Weather

Whether the walk needs a jacket.

Live conditions from the school's own rooftop weather station, with Open-Meteo filling in the forecast. Hourly through the school day, so you know what the walk home looks like before period six.

News and events

What the school is actually up to.

Announcements, competition results and evening events, pulled in as they are published. Parents' council, theatre night, MINT-Abend — with the dates attached.

Since September 2026

One request instead of thirty-four.

Until now the app pulled everything from the school's server, one request after another — and that server is slow. Now our own server does the pulling, once a minute, and the app talks to an API that is tuned for exactly one thing: answering in milliseconds.

It runs on infrastructure in over 300 cities, so it is always close to you — at school, and on holiday. Nothing about you is stored: no accounts, no request logs, all data stored in the EU. See the benchmark.

App launch
~7 s ~110 ms
Requests
34 1
Transfer, unchanged
790 KB 0.2 KB
News
6 s 80 ms
Karlsruhe
Frankfurt
Munich
Berlin
Hamburg
Düsseldorf
Paris
London
Madrid
Rome
Athens
Istanbul
New York
San Francisco
São Paulo
Dubai
Cape Town
Tokyo
Sydney
Karlsruhe → Mallorca
Karlsruhe → New York
Karlsruhe → Tokyo

Get it on your phone.

Free, on the App Store and Google Play. Made for one school, by someone who goes there.