DevFest.cz

Ryzizub

About this app

The official companion app to DevFest.cz 2026, the community conference for developers organised by GUG.cz on 30 October 2026 at Uhelný Mlýn near Prague.

AGENDA
Browse every talk and workshop by time. See the room, the track and who is speaking, search by title, speaker or topic, and star the sessions you do not want to miss.

SPEAKERS
The whole lineup with search, and a page for every speaker.

NOTIFICATIONS
A reminder before your starred talks, the organisers' announcements, and an inbox that keeps every one of them. When a talk ends, rate it by scanning the QR code on stage.

YOUR TICKET
Sign in with the registration code or QR code from your ti.to ticket. The app then shows your ticket's QR code for check-in at the door, even offline once it has loaded.

AT THE VENUE
With your ticket you can also:
- scan other attendees' badges to keep a list of the people you met, emailed to you after the conference,
- play the detective game: scan the codes hidden around the venue, collect clues and make one accusation,
- turn a photo into AI stickers and print your favourites at the venue's sticker printer.

INFO
The venue, how to get there, the day's outline, the FAQ and our partners, ready on the day.

You can delete your account and its data at any time from Profile on the Info tab. Tickets, invoices and everything else stay on devfest.cz.

What’s new

New in this version:
- The detective game opens as its own case board, with a mini-puzzle at each golden clue
- Stickers show the sheet in colour, keep its print status live and let you try another photo first
- A faster, sturdier ticket login on slow Wi-Fi
- Your favourites stay after signing in, and the programme works without signal
- Foldables and tablets use the whole screen
- The latest FAQ, partners and train route
- A smaller app and many smaller fixes