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No AI slop. Real fares, real connections and 15+ years of algorithm development.

How it works

How it works and how we calculate.

Every result rests on the trip of every attendee to every candidate city, with travel cost, travel time and CO2 side by side. Here is how we get there.

Technology

One engine behind every channel.

Web app, Outlook add-in and API share one destination logic; flight, hotel, routing and emissions data are live.

  • Geocoding and routing

    Addresses, distances, door-to-door legs

  • Global distribution systems

    Live flight fares and availability

  • Flight schedules

    Every connection, every day

  • Emissions

    CO2 per trip, VDR standard

  • Web app
  • Outlook add-in
  • Partner API

Convien engine

  • Service layer

    REST services, access control, orchestration

  • Business layer

    Destination logic, door-to-door trips, policies, CO2

  • Data layer

    Resource system, customer data, caches

  • Hospitality

    Hotels and meeting venues

  • Weather

    Typical weather for the dates

  • Resource data

    Airlines, airports, currencies, cities

11
data services connected live
1 engine
for web app, Outlook add-in and API
48 modules
hosted in Germany

Every channel uses the same destination logic, trip building and CO2 calculation.

Four steps

From an attendee list to a decision.

  1. Smiling professionals in the audience at a corporate event

    1

    Add attendees.

    Where they start and how many travel from each place. A city, a postcode or an airport is enough. No names.

  2. Calendar page with a red pin on the 14th

    2

    Choose dates.

    Up to three dates: your date plus two alternatives. More dates give more room to save.

  3. Hands with a pen and a calculator over printed charts

    3

    Calculate.

    Check your preferred location, or let us calculate every candidate city.

  4. A hand points at the weighting of travel cost, CO2 and travel time on a printed Convien sheet

    4

    Decide.

    Compare cost, CO2 and travel time in three views, choose your location, export the report.

Inputs

Origins, not people.

We only need where your attendees start and how many travel from each place. No names, nothing personal.

  • Origins A postcode, a city or an airport, with the head count and travel class for each.
  • Dates Up to three dates for one event: the second costs 30% less, the third 50% less.
  • Your benchmark Your preferred location, the basis for every comparison.
  • Where to search The region or the cities we compare.

How we calculate

Three numbers per attendee, from live data.

For every candidate city we build each attendee's trip door to door, then add up cost, CO2 and time for the whole group.

  • Travel cost

    Real flight schedules and fares from global booking systems, rail, bus and car through routing services, with your travel policy and negotiated rates.

  • CO2

    atmosfair data according to the VDR standard since the end of 2020, aligned with the GHG Protocol (Scope 3, category 6), radiative forcing shown, for every mode.

  • Travel time

    Time in transit, stops, waiting and the way to the station or airport, so the working time lost on the road shows next to the ticket price.

Ranking

Pick the view that fits your goal.

Maximum productivity, minimum CO2 or lowest ticket cost: one click re-ranks the cities. Every city shows travel cost, cost of labor, CO2 and travel time.

Example
Calculated locations ranked by maximum productivity: Munich best option, each city with a photo, travel cost, cost of labor, CO2 and travel time

Savings

Compared on the same basis.

The chosen location against your preferred location, in the same calculation, in euros, tonnes and hours.

  • Ready for your reporting Travel cost and CO2 saved, with CO2 figures per meeting for your Scope 3 reporting.
  • Exported As PDF or Excel, for your team and your sustainability report.