Comparison

Claud vs CO₂ Score

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

Head to head
About

Claud

Features
Read full description

Track your carbon footprint in seconds — free. Log trips, meals and energy, see your weekly CO₂, and meet Claud: a friendly cloud that thrives when you make greener choices. Free forever • Log driving, flights, public transport, food, home energy, walking, cycling, tree planting and recycling • See your weekly CO₂ consumption vs. compensation at a glance • Set a weekly CO₂ budget and keep a daily logging streak • Sync steps and walking distance from Apple Health • Log hands-free with Siri and Shortcuts, plus daily reminders • Share your stats with friends Claud+ unlocks • Trip planner: compare walking, cycling, transit and driving with the CO₂ of every route • Smart tips with real kg CO₂ savings based on your own data • Weekly trends and your complete color-coded activity calendar • 7-day weather and air forecast to plan your greenest days • Custom activities, alternate app icons and a Home you can rearrange Claud+ is available as an auto-renewing yearly subscription (with a free trial for eligible new subscribers), a monthly subscription, or a one-time lifetime purchase (also for Family Sharing). Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in Settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://giusscos.com/work/claud/privacy/ Start your greener routine today — Claud is cheering you on.

About

CO₂ Score

Features
Read full description

CO₂ Score helps you understand your digital footprint and reduce your daily carbon emissions with simple, science-based, real-world insights. Your everyday digital activity generates invisible CO₂ emissions. CO₂ Score analyzes these signals using scientifically validated carbon models and turns them into actionable guidance — empowering you to build more sustainable habits without changing your lifestyle. What CO₂ Score Measures* (Science-Backed) • Device energy usage (brightness, thermal load, idle drain) • Mobile data, Wi-Fi, and network-related emissions • Audio, Bluetooth, and peripheral energy impact • Background processes and system-level power consumption • Carbon conversion factors derived from peer-reviewed research and international datasets and many more... * All metrics and emission factors are rooted in current scientific literature. A full list of references and methodologies is available inside the app. 1. Daily Overview & Smart Insights Your daily dashboard shows: • Today’s total digital carbon footprint • Personalized, science-based suggestions • Clear guidance on small adjustments that create meaningful long-term impact Insights adapt to your real usage and highlight exactly where unnecessary digital emissions occur — making reduction effortless. 2. Weekly Trends • Explore your footprint evolution across 7 days and top emission contributors • Understand where you improved and where you can optimize further • Stay motivated with transparent progress charts 3. Challenges & Badges (Motivation Built-In) Stay motivated with CO₂ Score’s challenge system: • Earn badges by improving daily habits • Unlock achievements for sustained reductions • Complete challenges with your friends • Celebrate milestones as your CO₂ Score improves Challenges and badges help turn sustainable digital habits into a fun and rewarding journey. 4. 100% Private, Secure & Fully Under Your Control • No personal data is collected • All calculations stay locally on your device • No ads, no external tracking, no third-party sharing • You can disable any specific metric at any time — instantly and completely CO₂ Score is built with privacy-first principles. You decide which metrics are active, and all data stays on your device. Why It Matters Digital CO₂ emissions grow every year. By understanding your footprint, you can take meaningful steps toward a more sustainable digital life — without changing your routine. Start today with CO₂ Score — shape a better tomorrow.

Screenshots

Claud4 screens
CO₂ Score4 screens

Verdict

The call

The clearest difference is in-app purchases: CO₂ Score at none against Claud's 8. CO₂ Score also leads on update cadence (daily vs every 9 days) and iOS requirement (15.1 vs 18.5). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Claud sells 8 in-app purchases, starting at $1.99 per month. CO₂ Score asks for nothing beyond the download.

UpkeepUpdate frequency

Claud ships an update every 9 days, CO₂ Score daily. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.

Scorecard3 real differences · 3 level
Claud versus CO₂ Score: the parameters behind the verdict, then further details
ParameterClaudCO₂ Score
PriceFreeFree
Update frequencyEvery 9 daysDaily — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.515.1 — better
Further details — not scored
Size4 MB65 MB
Age rating4+4+
DeveloperGiuseppe Pio CosenzaIBRAHIM TOLGAR SASMAZ

In-app purchases

8 purchases

Claud

Subscriptions6
  • Claud+3 Days trial$1.991 Month
  • Claud+$2.991 Month
  • Claud+ Family3 Days trial$3.991 Month
Show 3 more
  • Claud+$4.997 Days
  • Claud+7 Days trial$19.991 Year
  • Claud+ Family7 Days trial$39.991 Year
One-time2
  • Claud CO2 Lifetime$34.99
  • Claud CO2 Family Lifetime$59.99
None

CO₂ Score

No in-app purchases

Questions

Is Claud free?
Claud is free to download, with in-app purchases available.
Is CO₂ Score free?
CO₂ Score is free to download, with no in-app purchases.
Do Claud or CO₂ Score have ads?
Neither Claud nor CO₂ Score shows ads.
Which is updated more often, Claud or CO₂ Score?
Claud ships an update every 9 days, and CO₂ Score daily. Most recently, Claud was updated on October 25, 2026 and CO₂ Score on October 20, 2026.

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