Editor's Review
What it is:
Dzienniczek VULCAN is the mobile front end for the UONET+ school register used by a large number of Polish schools. Parents and pupils sign in to see exactly the data the school keeps: marks as teachers enter them, absences and lateness, the week's lessons, homework and test dates, and messages from staff.
What it does well:
The core information is genuinely useful when it loads. Marks appear with their weighting and the teacher's comment, so a parent can see why an average moved rather than guessing. The timetable view carries substitutions and cancelled lessons, which occasionally saves a trip. Several children can be attached to one account, and switching between them takes a tap.
Where it falls down:
The 1.96 average across 1M+ installs is the headline fact here, and it is not an accident. Complaints concentrate on access rather than features: registration that needs a token issued by the school and expires quickly, sessions that drop and demand a fresh sign-in, sync failures during the crush at the end of a term, and notifications that arrive late or never. Little of that is within a user's control, since the app depends on the server each school runs.
Who should install it:
Only families whose school actually uses this register, and only with the browser version kept as a fallback. There is no competing client to switch to, so the rating is a warning about quality rather than a reason to pick something else.
Features
Marks with weightings, categories and the teacher's comment
Attendance record covering absences, lateness and excused entries
Weekly timetable including substitutions and cancelled lessons
Homework, test dates and school announcements
Messaging with teachers, with several children supported on one account
Pros
The official mobile client for schools running this particular register
One login can cover several children without repeated setup
Cons
A 1.96 average reflects persistent, widely reported reliability problems
Registration depends on a token from the school that expires quickly
Sessions drop often enough that re-authenticating becomes routine
Worthless unless your school has chosen this specific register provider
Questions people ask
Why is the rating so low?
Nearly all the negative reviews concern getting in rather than what is inside: expired registration tokens, repeated logouts and sync failures when servers are busy. The information itself is accurate; reaching it reliably is the problem.
Can I use it if my school runs a different register?
No. It connects only to VULCAN's UONET+ system. Schools on Librus, Mobidziennik or another provider need that provider's own client.
How does registration work?
The school issues a token, a symbol and a PIN, usually through the office or the web version of the register. They are entered once during setup and expire after a short window, so a failed attempt means asking for a fresh set.
