ICHEP 2026

The Third ICHEP in the Same App

ICHEP — the International Conference on High Energy Physics — is the flagship biennial meeting of the worldwide particle-physics community, and the 43rd edition brought it to Natal, Brazil. For returning attendees the app experience started before the opening plenary: anyone who had used HEPCon at ICHEP 2022 in Bologna or ICHEP 2024 in Prague already had the app installed, and ICHEP 2026 simply appeared in their events list.

The scale was fully flagship: 1,023 contributions from 916 speakers and 1,415 authors, organised into 192 sessions with up to 12 running in parallel — the densest programme shape HEPCon serves, and precisely the shape it was built for.

Twelve Rooms, One Pocket

At peak, twelve sessions ran simultaneously. Attendees saved 1,624 talks to their personal schedules — close to three per person across the 552 who used the app — which is the clearest signal of what a programme this dense actually demands: not browsing, but committing to a route through the day. The schedule flagged overlapping picks before the morning started, and search reached every abstract in the programme.

All of it worked offline. A 1,023-contribution timetable should not depend on venue Wi-Fi, and at ICHEP it did not.

What Attendees Did With It

Usage began well before the opening plenary — delegates were building agendas in the weeks leading up to Natal — and daily activity peaked at 196 attendees on the opening day. Across the conference, attendees ran 196 searches over the programme, downloaded 119 talk materials, exported 81 sessions to their own calendars, and shared 40 talks and speaker pages with colleagues.

Adoption split almost evenly between iOS and Android — a reminder that at an international conference there is no majority platform to design for, and that a single-platform app leaves roughly half the room without a programme.

Synced from CERN Indico Until the Last Change

The programme lives at indico.cern.ch and stayed there: HEPCon synced the timetable — sessions, contributions, speakers, materials — and kept syncing as the schedule committee refined it through the conference week. Room moves and time changes reached installed apps as they landed, with push notifications for the critical ones.

Speakers with History

Because ICHEP 2022 and 2024 live in the same app, returning speakers carry their cross-event history: a delegate opening a speaker's page can see that person's contributions across previous editions, deep-linked and searchable. A conference series accumulates value in HEPCon rather than starting from zero every two years.