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Roadtrip App

Shows you the cost of fuel to drive from A to B, using your exact car model.

Wellington, NZKodeword Limited (Private)Founded 2021
Roadtrip App logo
Website
600K+
App downloads
1M+
Trip calculations
#1
NZ App Store ranking (at peak)
4.7
App Store rating (873 ratings)
6
Countries supported (NZ, UK, AU, US, CA, EU)
2021
Year launched

Overview

Roadtrip is a Wellington-built fuel cost calculator app that shows users the cost of driving from point A to point B using their exact car model. Launched in December 2021 by co-founders Emory Fierlinger and Ben Robertson, the app reached number one on the New Zealand App Store through word-of-mouth alone with zero paid marketing. Users simply enter an origin, destination, and their licence plate number, and the app calculates the trip cost based on real-time fuel prices, the vehicle's fuel efficiency (retrieved via NZTA's licence plate database), and route distance. In response to New Zealand's April 2024 introduction of Road User Charges for electric and plug-in hybrid vehicles, the Roadtrip team built What the RUC (whattheruc.com), a companion calculator that estimates annual RUC costs for EV and PHEV owners. The Roadtrip app itself was also updated to factor RUC into trip cost calculations for electric and hybrid vehicles, making it one of the few consumer tools to integrate RUC data directly into journey cost estimates. The app has since expanded internationally to the UK (March 2024), Australia, and the United States, with over 600,000 downloads worldwide.

Products & Services

Roadtrip App

Free fuel cost calculator app for iOS and Android. Uses licence plate lookup to identify vehicle specifications and calculates trip costs based on real-time fuel prices, vehicle fuel efficiency, and route distance. Supports petrol, diesel, hybrid, and electric vehicles. Features include cost splitting, carbon emissions tracking, route comparison, multi-stop planning, and trip sharing.

What the RUC

Web-based RUC calculator at whattheruc.com. Allows NZ vehicle owners to enter their licence plate and annual kilometres to estimate yearly Road User Charges for EVs, PHEVs, and diesel vehicles. Queries the NZTA database for vehicle specs. Privacy-focused -- licence plates are not stored after lookup.

Roadtrip Web Calculator

Browser-based version of the Roadtrip fuel cost calculator at getroadtrip.app/starttrip. Generates over 1,000 daily visitors from search. Built with Webflow and programmatic SEO.

History

21
2021

Roadtrip app launched in New Zealand in December by co-founders Emory Fierlinger and Ben Robertson. Built under Kodeword Limited in Wellington.

22
2022

Reached #1 on the New Zealand App Store through word-of-mouth growth. Surpassed 200,000 downloads. Featured on RNZ Nine to Noon and in the NZ Herald. A TikTok video about the app gained over 1 million views and 120,000 likes.

24
2024

Launched What the RUC (whattheruc.com) companion tool ahead of NZ's April 2024 EV RUC introduction. Updated Roadtrip app to include RUC in trip cost calculations for EVs and PHEVs. Expanded to the UK market in March 2024, showing real-time fuel prices from over 4,200 stations.

25
2025

Expanded to the US and Australian markets. Surpassed 600,000 downloads globally. Added multi-stop journey planning, trip sharing, and support for German, Italian, French, and Spanish languages.

Leadership

Emory Fierlinger

Co-Founder

Product designer and UX/UI specialist. Studied at Massey University. Son of Philip Fierlinger, co-founder of Xero and Upstock. Serves as COO at Upstock alongside his Roadtrip work. Also created the What the RUC calculator.

Ben Robertson

Co-Founder & Developer

Studied at Victoria University of Wellington. Listed as the developer on the Apple App Store. Also worked at Upstock alongside Fierlinger.

RUC Involvement

Roadtrip is one of the few consumer-facing apps in New Zealand that integrates Road User Charges directly into trip cost calculations. When NZ introduced RUC for light EVs and PHEVs in April 2024, the Roadtrip team responded by building the What the RUC companion calculator and updating the main app to factor RUC into journey costs for electric and plug-in hybrid vehicles. The tools leverage NZTA's vehicle registration database to identify vehicle type and apply the correct RUC rate ($76/1,000km for EVs, $53/1,000km for PHEVs).

Market Position

  • Consumer-facing RUC cost calculator with over 600,000 app downloads
  • What the RUC (whattheruc.com) provides annual RUC cost estimates for EV, PHEV, and diesel owners
  • One of the few apps to integrate RUC into per-trip cost calculations alongside fuel and electricity costs
  • Featured in NZ Herald as one of 'two apps that will help EV owners get to grips with RUCs'

Policy Positions

  • Positions itself as helping EV owners understand and adapt to the new RUC regime rather than advocating for or against the policy
  • Emphasises transparency in vehicle running costs, showing users the real cost impact of RUC on EV ownership
  • Blog content explains the rationale behind EV RUC (NZ reached 2% EV fleet penetration threshold) while helping users calculate their personal costs

Notable Events

No notable events found for this organization.

Company Information

KODEWORD LIMITED

Registered
Company Number

9158064

NZBN

9429051978754

Entity Type

NZ Limited Company

Incorporated

27 Mar 2024

Registered Office

17 Hadfield Terrace, Kelburn, Wellington, 6012, New Zealand

Industry

M700050 - Development of customised computer software nec

Directors (2)

Ben Hunter Andrew Robertson

Wellington, New Zealand

27 Mar 2024

Emory Zane Fierlinger

Havelock North, New Zealand

11 Apr 2024

Shareholders (2)

1,000 total shares

Ben Hunter Andrew Robertson

500 shares · Wellington, New Zealand

50.00%

Emory Zane Fierlinger

500 shares · Havelock North, New Zealand

50.00%

Source: NZ Companies Office · Last checked February 2026

View on Companies Register

Profile compiled from public sources. Last updated February 2026. Back to Market Map →