GridCarbon vs Rewild Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GridCarbon
Monitor the real-time carbon intensity of the UK electricity grid. Understand how electricity generation sources change and identify times when using power is more environmentally friendly. Reduce your carbon footprint by shifting energy consumption to periods of lower grid emissions.
- Real-time carbon intensity updates
- Traffic light indicator for intensity levels
- Generation mix summary
- 24-hour carbon intensity plot
- Interactive generation mix chart
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Track the carbon intensity of the GB electricity grid on your iPhone or iPad Demand for electricity varies throughout the day, and thus, the mix of generators supplying this electricity continually changes. As a result, the carbon intensity of the electricity – the quantity of CO2 produced for 1 kWh of electricity consumed – also varies continually. Deferring your use of electricity to off-peak times, when the carbon intensity is low, can help reduce your carbon footprint. Features: - Data updated every 5 minutes. - Display of instantaneous carbon intensity (gCO2/kWh). - Traffic light indicator to highlight period of low and high carbon intensity. - Generation mix summary showing total and percentage supply by type. - Line plot showing carbon intensity over the previous 24 hours. - Interactive bar chart showing the generation mix over the previous 24 hours.
Rewild Mobile
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Every month, your phone bill can do something quietly extraordinary. Rewild Mobile is a UK mobile network built on a simple idea: you get the coverage and reliability of a major network, and Britain's wildlife gets a share of the profits. The difference isn't the network. The difference is where your money goes. Choose an Everyday SIM with unlimited calls, texts and data on full 4G and 5G across roughly 99% of the UK, on the same masts as the biggest networks. Or pick a Travel SIM, a data eSIM for over 200 countries from £2.96, delivered the moment you order. Set it up before you fly and switch it on when you land, with no surprise roaming bills. Manage everything in the app: buy and activate SIMs in seconds, track your data, pay your bill, and see the real world impact your membership helps create. 25% of our net profits fund nature recovery across Britain, restoring woodlands, wetlands and wild places and supporting species like beavers, water voles and pine martens on their way back. Beavers are building again on rivers that fell silent generations ago. Pine martens are returning to old forests. Nature, given the smallest chance, recovers, and your phone bill can be part of that. Same signal. Better story. Switch to Rewild Mobile and let your everyday connection help bring Britain back to life.Every month, your phone bill can do something quietly extraordinary. Rewild Mobile is a UK mobile network built on a simple idea: you get the coverage and reliability of a major network, and Britain's wildlife gets a share of the profits. The difference isn't the network. The difference is where your money goes. Choose an Everyday SIM with unlimited calls, texts and data on full 4G and 5G across roughly 99% of the UK, on the same masts as the biggest networks. Or pick a Travel SIM, a data eSIM for over 200 countries from £2.96, delivered the moment you order. Set it up before you fly and switch it on when you land, with no surprise roaming bills. Manage everything in the app: buy and activate SIMs in seconds, track your data, pay your bill, and see the real world impact your membership helps create. 25% of our net profits fund nature recovery across Britain, restoring woodlands, wetlands and wild places and supporting species like beavers, water voles and pine martens on their way back. Beavers are building again on rivers that fell silent generations ago. Pine martens are returning to old forests. Nature, given the smallest chance, recovers, and your phone bill can be part of that. Same signal. Better story. Switch to Rewild Mobile and let your everyday connection help bring Britain back to life.
Screenshots
Verdict
The clearest difference is update cadence: Rewild Mobile at weekly against GridCarbon's every 4 months. GridCarbon's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.
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.
GridCarbon ships an update every 4 months, Rewild Mobile weekly. The most recent releases landed on October 7, 2026 and September 23, 2026 respectively.
| Parameter | GridCarbon | Rewild Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (6 ratings) — better | — |
| Positive reviews | 75.7% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 10 MB | 91 MB |
| Age rating | 4+ | 4+ |
| Developer | Alex Rogers | Rewild Mobile |
In-app purchases
GridCarbon
No in-app purchases
Rewild Mobile
No in-app purchases









