The Climate App vs iao.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Climate App
Track your carbon footprint, engage in sustainability challenges, and connect with a global community to take climate action. Gamified features and friendly competition make eco-friendly living fun and impactful.
- Carbon footprint calculator and tracker
- Sustainability challenges and eco actions
- Gamified climate action with points and badges
- Positive climate community and social networking
- Friendly competition and team challenges
- Climate change news and updates
- Collective impact dashboard
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The Climate App – The #1 Carbon Footprint Tracker, Sustainability App & Climate Action App The Climate App combines science, gamification, and social networking to make sustainable living simple, social, and fun. Climate change can feel overwhelming - but with the right tools and community, taking action becomes empowering. Save the world with your friends and go green together! Key Features: 1. Carbon Footprint Calculator & Tracker Measure and track your carbon footprint with science-backed accuracy. Monitor your carbon emissions over time, compare your progress, and improve your environmental impact with every eco action - all while understanding your climate impact. 2. Sustainability Challenges & Eco Actions Take part in fun, science-based challenges across home, food, travel, finance, organisation, and advocacy. Perfect for building long-lasting sustainable living habits with friends through engaging eco-friendly lifestyle choices. 3. Gamified Climate Action Earn points, badges, and achievements for eco-friendly actions. Turn climate change solutions into a game and climb the leaderboards. 4. Positive Climate Community Connect with people worldwide who care about environmental protection, climate solutions, and green lifestyles - united for global environmental protection. 5. Friendly Competition Compete with friends and coworkers - like a fitness app for climate action. Take on eco challenges and inspire your community to go green. 6. Climate Change News & Updates Get curated climate news, innovations, and real stories of global environmental action - all in one climate change app. 7. Collective Impact Dashboard See how your actions contribute to global climate progress and climate impact. You are not alone! 8. Build a Sustainable, Eco-Friendly Lifestyle Like a mix of Duolingo, Strava, and Instagram - but built entirely for solving the climate crisis, going green, and reducing your carbon footprint. 9. For Individuals & Organisations Use the app with your friends, co-workers, managers or employees! Create teams within your organisation and see who wins the league! 10. Join the Global Movement The climate crisis is our greatest challenge - but together, our small actions lead to big impact. Download The Climate App to take meaningful climate action with millions worldwide. The Climate App: the #1 carbon footprint tracker, carbon footprint calculator, sustainability app, climate change game, and climate action app – join in now! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.theclimateapp.earth/privacy
iao.
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iao is for people who actually want to think. A new debate every day. A real opponent. 14 minutes to make your case. Names off, ideas on. How it works A fresh, contested topic drops daily. Pick a side. Get matched with a stranger holding the opposite. 14 minutes, 40 seconds to defend it. No edits, no clout, no profile picture. When the round ends, you see a clean summary of what each side said. What you won't find No followers. No likes. No reposts. No bios. No names. Just the argument and the room. Why it works Without your name attached, what do you actually believe? When the topic is sharp and the timer is real, ideas have to stand on their own. iao is the room where they do. Bring an idea. Leave with a sharper one.
Screenshots
Verdict
The clearest difference is in-app purchases: iao. at none against The Climate App's 1. iao. also leads on update cadence (every 11 days vs every 2 months) and iOS requirement (15.1 vs 17.0). On price, ads 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. The Climate App sells 1 in-app purchase, starting at $2.99 per month. iao. asks for nothing beyond the download.
The Climate App ships an update every 2 months, iao. every 11 days. The most recent releases landed on June 1, 2026 and July 20, 2026 respectively.
| Parameter | The Climate App | iao. |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 87 MB | 27 MB |
| Age rating | 17+ | 17+ |
| Developer | The Climate App ltd | Furkan Emir |
In-app purchases
The Climate App
- Individual$2.991 Month
iao.
No in-app purchases









