Pappus Travel Planner vs TREK

Pappus Travel Planner builds day-by-day trip itineraries with destinations, transport, times, and costs. Itinerary items can include places, transport legs, shared-ticket groups, reorderable entries, and alternative plans. Trip information is stored in a portable SQLite file; the app says it needs no account or server and uploads nothing. It works offline except for optional connection searches and map tiles, which rely on network services. Optional Transitous searches cover public transport, trains, buses, and other operator routes, and results can be imported with live times refreshed. Maps use OpenStreetMap tiles, and GPX tracks can be added to itinerary legs. Costs can be tracked across currencies, custom categories, and exchange rates, with spending statistics and settle-up calculations. Photos and documents can be attached to entries, groups, or trips. Trips can be shared as importable .tpt bundles or exported as PDF or .ics, though PDF and calendar exports cannot be imported back. The free software is licensed under GNU GPL version 3 or later, with no warranty stated.

TREK is a self-hosted travel planner for organizing trips collaboratively in real time. Users can arrange places by day, optimize routes by distance, and send a day to Google Maps for turn-by-turn directions. Collaborators can edit itineraries together, see live presence, chat, run polls, track attendance, and share read-only public links. Reservation records hold confirmation numbers, files, and statuses for flights, stays, and restaurants. Budgets support multiple currencies and per-person or per-day totals; packing lists include templates and item assignments. OpenStreetMap is the default place search, Google Places is optional, and 16-day forecasts use Open-Meteo without API keys. Optional addons include travel statistics, vacation planning, journaling, and MCP integration. TREK runs on operator-controlled hardware, stores trip data in a SQLite file, and supports scheduled snapshots with retention policies. It can be installed as a PWA and has deployment documentation for Docker, Kubernetes, Unraid, Proxmox, Raspberry Pi, and Apple Silicon, with AMD64 and ARM64 images. It is open source under AGPL-3.0 and free for personal and internal company use.