I'm looking for Session Catalog, Stripe payment for registration, and a mobile app for a conference?

Brief answer first: Yes — Certain provides a full Session Catalog product (Session Catalog Designer, Conference Catalogs, multiple catalogs per event, syncing sessions/speakers) and an add‑on called Session Advisor (AI recommendations delivered via an embedded widget/script into the catalog). Documentation shows how to create/configure catalogs, sync sessions/speakers, control public vs. logged‑in access, and integrate the Session Advisor widget.

Details and how it fits your needs

• Session Catalog Designer: browser‑based designer to create Session or Speaker catalogs, select layouts (Magazine, Promoted, General), theme, filters, grouping, and page elements such as My Sessions and login behavior. You can make catalogs public or require registrant login. Session Catalog Designer
• Conference Catalogs / Catalog List: create multiple catalogs per event (e.g., VIP vs General), copy/share links, edit, view, delete, and sync sessions and speakers into catalog(s). Syncing pushes published/scheduled/qualified/cancelled sessions into the catalog; changes take ~1–2 minutes to reflect. Conference Catalogs
• Session Advisor (AI recommendations): premium, paid feature that analyzes attendee profiles, past behavior, and session metadata and delivers personalized session recommendations via an embedded script/widget you add to the Session Catalog. You can style the widget, apply filters/limits (exclude sessions, limit number per attendee type), and recommendations are batch updated every 24 hours (with on‑demand refresh for new registrants within ~5 minutes). Session Advisor FAQ's - Session Catalog

Sources

• Session Advisor FAQ's - Session Catalog
• Session Catalog Designer
• Conference Catalogs

One question: Do you already have a Certain account/event configured (and the Speaker & Session sub-module enabled), or are you starting from scratch for this conference?