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Press kit

Decarbonr, in facts and images

Facts, descriptions and images for writing about Decarbonr. Every image shows the real app on sample entries.

Version 1.2 is on its way to the App Store

This page describes Decarbonr 1.2. Until Apple releases it, the App Store has version 1.1, which has no iPad layout, Apple Watch app, Home tab or Insights.

Fact sheet

Name
Decarbonr (on the App Store: Decarbonr: Carbon Footprint)
What it is
A carbon footprint tracker: it turns what you log (meals, trips and life at home) into estimates for today, your week and a yearly estimate next to a 2-tonne target.
Version
1.2 (the App Store has 1.1 until 1.2 is released)
Platforms
iPhone and iPad with iOS 18 or iPadOS 18 or later, including iPhone Duo; Apple Watch with watchOS 11 or later (needs the iPhone app)
Price
Subscription needed after the introduction screens: Base Access (Premium Access plans, weekly, monthly or yearly) or the AI add-on (AI Features plans), which adds meal-photo and barcode scanning. Prices are shown in the App Store; the weekly Base Access plan has a no-cost trial where offered. No ads.
Languages
44 languages in the app; the App Store page in 39 localizations
Privacy
No account. Entries are stored on the device. A meal photo (after consent, through Decarbonr's server to OpenAI), a barcode number (Open Food Facts) and an unknown city name (Apple Maps) are the only things sent. No analytics, advertising or third-party SDKs.
Data
Emission factors from published sources, listed in the app; product data from Open Food Facts (ODbL) and Agribalyse where available; country figures from Our World in Data and the Global Carbon Project (CC BY 4.0)
Developer
LyteFast
App Store
apps.apple.com/app/decarbonr/id6756505115

Short description

Decarbonr is a carbon footprint tracker for iPhone, iPad and Apple Watch that turns meals, trips and life at home into estimates for the day, the week and the year, and shows where each number comes from.

Long description

Decarbonr turns what you log into your carbon footprint: today's total against a daily target, your week, and a yearly estimate once you have entries on 7 different days, shown next to a 2-tonne target and, for 32 countries, the country's average fossil CO₂ per person. Insights compare your last 7 days with the 7 days before, name your biggest source and count your logging streak.

Food can be logged by hand, from a barcode (looked up on Open Food Facts, using the product's climate data when there is some and a food-category average otherwise) or from a meal photo, which AI estimates ingredient by ingredient. Trips cover car, plane, train, bus, cruise, bike and walking; a Home tab holds eleven home and lifestyle trackers. A climate library explains the science, most articles with their sources.

Version 1.2 brings a new design, Insights, the Home tab, layouts for iPad and iPhone Duo, and an Apple Watch app that shows the day, the week and the year and logs trips from the wrist.

Every figure is an estimate: food and travel use emission factors from published sources listed in the app, the home trackers use simpler averages, and meal-photo results are AI estimates. There is no account and no ads; entries are stored on the device.

App Store screenshots

The 1.2 App Store screenshots in English (US). They show the real app on sample entries; the captions beside the screens are part of the image.

iPhone

6.9-inch display.

iPad

13-inch display.

Apple Watch

Unframed captures, as on the App Store.

App preview

First frame of the app preview: the Today screen with the caption Your carbon footprint, one day at a time

A 26-second screen recording of Decarbonr 1.2 on sample entries, with English captions over the screen and no sound: the Today screen and Insights, the Food tab and a barcode result, the Travel tab and the Home tab.

Download (MP4, 590 × 1280 px, 26.1 s, 2.8 MB)

A note on wording

Please describe Decarbonr's numbers as estimates. Decarbonr does not measure emissions, does not offset them and does not make anyone carbon neutral; the 2-tonne target is a common shorthand for a 1.5 °C lifestyle, not an IPCC figure. The screenshots show sample entries, not a real person's footprint. Keep the data credits (Open Food Facts contributors, ODbL; Our World in Data and the Global Carbon Project, CC BY 4.0) with any image that shows their data.

Press contact

LyteFast
support@decarbonr.com