Comparison

CO₂ Aware vs Terralox

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

Head to head
About

CO₂ Aware

This app encourages daily actions to combat climate change with a growing interactive tree visualization. It offers environmental news and integrates with Apple Health to promote walking, helping users reduce their carbon footprint.

Highlights
  • Daily climate action tracking
  • Interactive growing tree visualization
  • Environmental news abstracts and links
  • Apple Health integration for step tracking
  • Photo record of completed actions
  • Reminder of past accomplishments
Features
Read full description

Leaving a smaller footprint requires change. CO₂ Aware is a high school student project focuses on small, daily actions that individuals can take to enable great change. People of today believe in technology, and we believe technology can also help mitigate the problem of climate change. This app includes dozens of essential actions that help you to be aware of climate change. An interactive tree is visible on the home page. As you complete more actions, it grows. This visualization allows you to experience tangibly and profoundly what you contribute to a better environment. Furthermore, you can take a picture when they complete an action, which serves as a record of your contribution. A section on the front page also shows a random action completed in the past, reminding your past accomplishments. Beyond actions, CO2 Aware also provides abstracts and links to high-quality news articles from renowned sources that allow you to acquire environmental knowledge. This app integrates with Apple Health on your iPhone in order to acquire your steps data and encourage you to walk. This helps reduce physical inactivity and prevents air pollution. We do not upload or analyze any data. We will be adding more thrilling features in the future. Just wait and see! Thanks for downloading this app. If you have any questions or comments, don't hesitate to send an email to shoguns.lenses.0s@icloud.com

About

Terralox

This app personalizes the challenge of climate change by letting you see a 3D Earth respond to your daily eco-friendly actions. Complete small missions to track your real impact and build sustainable habits, with AR features to bring the planet into your room.

Highlights
  • Daily eco-missions
  • Track real-world impact
  • 3D Earth visualization
  • Augmented Reality mode
  • Build eco-streaks
  • VoiceOver and Voice Control support
Features
Read full description

Terralox — Where Your Actions Shape Earth Climate change feels overwhelming. Terralox makes it personal. Watch a living, breathing 3D Earth respond to your daily choices. With three small eco-missions every day, Terralox transforms the abstract challenge of climate change into tiny, doable actions you can take right now and see the real-world impact. What you'll do - Three daily missions tailored to your routine: walking instead of driving, saving water, reducing waste, planting, supporting your local park - Track your real, measurable impact: water saved, CO₂ reduced, energy conserved, tree equivalents planted - Build an eco-streak: turn environmental awareness into a lasting daily habit A planet that responds The 3D Earth at the heart of Terralox isn't decoration, it's a real-time mirror of your actions: - Forests grow when you act - Ice caps recover when you reduce - Temperature stabilizes with conscious choices - Skip your missions, and you'll see the consequences Statistics rarely move people. But watching your planet thrive because of your daily choices? That's something you'll feel. Bring Earth into your room in AR Tap to place a fully interactive 3D Earth on any flat surface. Walk around it, examine the polar caps, watch forests bloom. Designed for everyone Built with accessibility from day one: - Full VoiceOver support on every interactive element - Voice Control: navigate the entire app hands-free - Optimized for iPhone and iPad, including landscape - Requires iOS 16 or later Privacy-first, by design - No accounts. No logins. No tracking. - No ads. No in-app purchases. - Your progress stays on your device, with optional sync to your own iCloud - Camera used only for AR mode, never recorded, never transmitted Who it's for Anyone overwhelmed by climate change who wants to channel that energy into action: - Students looking for meaning beyond grades - Parents teaching environmental responsibility - Educators searching for a hands-on tool - Anyone tired of just reading the news Three missions a day. Real impact. A planet that responds to you. This is Terralox.

Screenshots

CO₂ Aware4 screens
Terralox4 screens

Verdict

The call

The clearest difference is rating: Terralox at 5.0 against CO₂ Aware's 4.0. Terralox also leads on update cadence (every 3 weeks vs every 3 months). CO₂ Aware's advantage is monetization model (free vs paid). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Terralox holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

CO₂ Aware ships an update every 3 months, Terralox every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
CO₂ Aware versus Terralox: the parameters behind the verdict, then further details
ParameterCO₂ AwareTerralox
PriceFreeFree
Rating4.0 (2 ratings)5.0 (2 ratings) — better
Number of ratings22
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size11 MB28 MB
Age rating4+4+
DeveloperShouzhi WangFampot

Customer experience

CO₂ Aware

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%

Terralox

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

CO₂ Aware

No in-app purchases

None

Terralox

No in-app purchases

Questions

Is CO₂ Aware free?
CO₂ Aware is free to download, with no in-app purchases.
Is Terralox free?
Terralox is free to download, with no in-app purchases.
Which has better reviews, CO₂ Aware or Terralox?
Terralox is rated higher. CO₂ Aware averages 4.0 out of 5 from 2 ratings, while Terralox averages 5.0 from 2 ratings.
Do CO₂ Aware or Terralox have ads?
Neither CO₂ Aware nor Terralox shows ads.
Which is updated more often, CO₂ Aware or Terralox?
CO₂ Aware ships an update every 3 months, and Terralox every 3 weeks. Most recently, CO₂ Aware was updated on October 30, 2026 and Terralox on October 31, 2026.

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