Comparison

Zero CO2 vs Bambu

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Zero CO2

This app tracks your phone's carbon footprint from data usage and helps you offset emissions by planting trees. Monitor your CO2 output and see how your reforestation efforts compensate for it, receiving certificates for each planted tree.

Highlights
  • Monitors phone carbon footprint
  • Tracks CO2 emissions from data usage
  • Compensates emissions by planting trees
  • Visualizes CO2 emissions and tree compensation
  • Provides certificates for planted trees
Features
Read full description

ZeroCO2 monitors your phone's carbon footprint and keeps track of the CO2 emissions from your device. These CO2 emissions come from the data usage of your device. All cloud-services, emails, search queries, social network activities etc, are facilitated by large Data Centers, which consume large amounts of electricity to keep your data streams flowing. Over its lifetime, an iPhone can emit up to 60 kilograms of CO2. This electricity typically does not come 100% from green sources, and therefore leads to CO2 emissions. That's equivalent to more than 300 kilometers driving in a petrol-fueled car. Do you want your phone to become CO2-neutral? Then use the app to plant trees to compensate your emissions! With its comprehensive graphs, you can easily monitor how much CO2 you emit, and how your planted trees compensate these emissions. With every planted tree, you receive a certificate that proves the authenticity and shows the location of the planted tree. Prevent climate change, and become a carbon-neutral iPhone user! Note: Trees are planted by our partner Tree-Nation, the worldwide platform to reforest the world and fight climate change. All trees planted by Tree-Nation are certified by the best in class and most renowned certification standards that exist in this field. For this, Tree-Nation works with third-party certification organizations such as VCS, Gold Standard, and Plan Vivo.

About

Bambu

Easily calculate and offset your carbon emissions to live a carbon-neutral lifestyle. Choose from a selection of certified nature projects to support positive environmental and social impacts.

Highlights
  • Simple footprint calculations
  • Affordable carbon offsetting
  • Carbon neutral lifestyle
  • Certified nature projects
  • Unique offset certificates
Features
Read full description

BAMBU MAKES REMOVING YOUR CO2 EMISSIONS FROM THE AIR EASY AND AFFORDABLE. Most human activities generate carbon emissions, which are causing the rapid climate change we are now seeing. We are still in time to make a difference by reducing and removing emissions from the air. Why is Bambu better? + Simple footprint calculations + Easy and affordable + Quick way to become carbon neutral + Great nature projects selection What is carbon offsetting? When you buy carbon credits to remove your emissions from the atmosphere. Becoming carbon neutral and helping avoid climate change. Why should you offset? + Live the way you want to live. Guilt free lifestyle. + By becoming carbon neutral, you do your part to prevent climate change. That a is something to be proud of. + Positive social, gender, educational and environmental impact for low-income communities Are carbon credits certified? All carbon offsets initiatives are certified by United Nations, governments or highest climate standard entities. You will receive a unique certificate for each carbon offset.

Screenshots

Zero CO24 screens
Bambu4 screens

Verdict

The call

The clearest difference is in-app purchases: Bambu at none against Zero CO2's 1. Bambu also leads on ads (none vs shown). Zero CO2's advantage is update cadence (every 3 days vs weekly). On price, review sentiment, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Zero CO2 sells 1 one-off in-app purchase. Bambu asks for nothing beyond the download.

UpkeepUpdate frequency

Zero CO2 ships an update every 3 days, Bambu weekly. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Zero CO2 versus Bambu: the parameters behind the verdict, then further details
ParameterZero CO2Bambu
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings4 — better—
Update frequencyEvery 3 days — betterWeekly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better16.0
Further details — not scored
Size40 MB35 MB
Age rating12+4+
DeveloperCaramba App DevelopmentFelipe Del Corral

Customer experience

Zero CO2

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bambu

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Zero CO2

One-time1
  • Plant your tree$0.99
None

Bambu

No in-app purchases

Questions

Is Zero CO2 free?
Zero CO2 is free to download, with in-app purchases available.
Is Bambu free?
Bambu is free to download, with no in-app purchases.
Do Zero CO2 or Bambu have ads?
Zero CO2 shows ads; Bambu does not.
Which is updated more often, Zero CO2 or Bambu?
Zero CO2 ships an update every 3 days, and Bambu weekly. Most recently, Zero CO2 was updated on November 11, 2026 and Bambu on November 3, 2026.

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