Carbon Commute vs GridMix
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Carbon Commute
Calculate your daily commute's carbon footprint by inputting your travel distance and vehicle's fuel efficiency. The app supports custom fuel efficiency figures and metric conversions, helping you make informed choices about your transportation.
- Calculate commute emissions
- Use vehicle estimates
- Enter custom fuel efficiency
- Support metric conversions
- Inform commute decisions
Read full descriptionHide full description
Quickly calculate your emissions using your daily distance and MPG -Use vehicle estimates or enter custom fuel efficiency -Carbon commute also supports metric conversions -Make informative decisions on how you commute
GridMix
This app visualizes your region's live CO₂ emissions and forecasts them for the next 24 hours. It helps you identify the cleanest times to use electricity, like charging an EV or running appliances, to reduce your carbon footprint.
- Live CO₂ emissions visualization
- 24-hour emissions forecast
- Marginal Operating Emissions Rate (MOER)
- Fossil fuel percentage on grid
- Location-aware coverage
- Near real-time updates
Read full descriptionHide full description
Electricity isn’t equally clean every hour. This app shows your region’s live CO₂ and a 24-hour forecast so you can act when energy is cleanest. About to charge your EV or start the dryer? If the curve drops in an hour, wait and cut your emissions—no guesswork. Simple timeline, clear numbers, smarter choices. Know when your electricity is cleanest. Open the app and the gradient color tells the story in a glance: lighter green means cleaner power right now; darker tones mean it’s dirtier. No menus. No jargon. Just a quick read on your impact. For more detail, see the exact numbers: • MOER — the Marginal Operating Emissions Rate: the extra CO₂ emitted if one more megawatt-hour is used right now. Shown in lbs CO₂/MWh, it’s the most actionable way to time charging and appliances. • Fossil % — the share of your grid currently powered by fossil fuels. Plan smarter with a 24-hour forecast for your region. If emissions drop in an hour or two, you’ll see it, so you can delay EV charging, laundry, or heating/cooling to a cleaner window. Built on trusted public data. The app combines reliable datasets (U.S. EIA grid operations and EPA emissions) with robust statistical modeling. Data are refreshed throughout the day, so shifts in demand are captured in near real-time. Location-aware, nationwide coverage. We use your current location to map you to your Balancing Authority (BA) so you’re seeing the electricity you actually consume. The majority of major U.S. BAs are supported. Why you’ll love it • At-a-glance color gradient for “clean vs. dirty” right now • Current MOER (lbs CO₂/MWh) and Fossil % on your grid • 24-hour emissions forecast to pick the greenest hour • Near real-time updates as conditions change • Clean, minimal design—open, check, decide What’s next: widgets, notifications when low-emission hours are coming, a watchOS app, and more. Make timing your climate superpower. See when your energy is cleanest and act on it.
Screenshots
Verdict
Carbon Commute and GridMix are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Carbon Commute against 5.0 for GridMix. Both are backed by a comparable volume of ratings — 2 and 3 respectively.
Carbon Commute ships an update every 5 days, GridMix every 3 days. The most recent releases landed on September 10, 2026 and September 19, 2026 respectively.
| Parameter | Carbon Commute | GridMix |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 5 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.2 |
| Further details — not scored | ||
| Size | 17 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | Eric Christine | John Chaykowsky |
Customer experience
Carbon Commute
GridMix
In-app purchases
Carbon Commute
No in-app purchases
GridMix
No in-app purchases







