CO₂ AR vs ARC Geography
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CO₂ AR
Read full descriptionHide full description
When burning coal, oil and gas, carbon dioxide—also known as CO₂—is released into the atmosphere. To date, CO₂ emissions have risen dramatically. In the short industrial history of just 250 years, humans have increased the amount of CO₂ in the atmosphere by around 40 %. An alarming value unprecedented on Earth in the past four million years. Humankind has accumulated CO₂ and other greenhouse gases in the atmosphere which has already increased average global temperature by one degree Celsius since 1750. Our app allows you to visualise the history of CO₂ emissions—and also the possible futures. By combining data from the Carbon Dioxide Information Analysis Center (CDIAC) and the baseline projections of CO₂ emissions by the Potsdam Institute for Climate Impact Research (PIK), we were able to visualize the CO₂ emissions from 1751 to 2100 on a highly detailed geographical level. The app also provides you with two possible CO₂ futures: one with a policy of measures against climate change—and one without.
ARC Geography
Read full descriptionHide full description
*** ARC GEOGRAPHY APP IS COMPATIBLE WITH AUGMENTED CLASSROOM ONLY ARC Geography App features 3D models of countries and includes information on geographical peculiarities, political structures, animals, plants and heritage sites, the planet Earth and more. The App engages students in a new way of seeing and exploring the world, and all its wonders through an interactive learning experience of a real-world environment. ARC Geography is one of the Augmented Classroom Apps. It helps educators facilitate interactive and engaging lessons to students in class or remotely in a multi-user Augmented Reality environment. Students can interact with pre-designed content and participate in single-user or collaborative activities. Subject: Science, Geography, Social Studies, History, Biology Strands covered: human environments, natural environments, environmental awareness, space, location, world around us, history and discovery. ARC Geography contents include: - World’s political map with flags and facts (countries, capitals) - Weather, seasons, and climate in different countries - Understanding of planet Earth, its shape, and day & night cycles - Understand and apply the principles of a healthy diet (feed the animal activity) - Plants: understand where food comes from - Weather & plant: Understand seasonality, and know where and how a variety of ingredients are grown - Earth’s ecosystem & structure - World Heritage - Animals, insects & mini- beasts: All living things and their habitats - Water world & underwater animals - Time zones - Magnetic fields - Relationships in an ecosystem - Dinosaurs - many individual and team challenges to deepen and strengthen the subject understanding, and much more... "
Screenshots
Verdict
The clearest difference is update cadence: CO₂ AR at daily against ARC Geography's every 2 months. 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.
CO₂ AR ships an update daily, ARC Geography every 2 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.
| Parameter | CO₂ AR | ARC Geography |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 95 MB | 421 MB |
| Age rating | 4+ | 4+ |
| Developer | Ekkehard Petzold | CleverBooks Limited |
In-app purchases
CO₂ AR
No in-app purchases
ARC Geography
No in-app purchases









