CogniFit vs CO2 World Info
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CogniFit
Engage in fun mental games designed to test, train, and improve your cognitive functions. Monitor your progress with personalized scores and track improvements in areas like memory, focus, and reaction time. This app offers a scientific approach to brain health for users of all ages.
- Personalized brain training sessions
- Cognitive score monitoring
- Improve memory, focus, and reaction time
- Track cognitive age
- Guided mindfulness techniques
- Interactive brain games
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Your mind changes every day. Some days feel clear. Others feel harder to navigate. CogniFit brings a new daily approach to brain health, helping you understand how your mind performs, adapts, and evolves over time. Built on more than 20 years of published research, CogniFit combines cognitive assessment, adaptive training, and daily guidance into a single system designed to support mental clarity, focus, and long-term cognitive wellbeing. ‣ Your Brain Age At the center of the experience is your Brain Age: a simple way to understand how your mind is performing today, and how it changes over time. Monitor your daily and weekly cognitive scores, set goals, and build a personalized training plan around your own rhythm. ‣ Five Abilities, One Evolving Picture Memory, focus, coordination, reasoning, and perception are measured over time to reveal patterns in how your mind performs day to day, alongside up to 22 other cognitive abilities, including processing speed and reaction time. ‣ Built Around You Training sessions adjust gradually, adapting difficulty, pace, and cognitive focus based on how you perform. The more you use CogniFit, the more the experience adapts to you. ‣ Guidance Throughout the Day Gentle reminders, reflections, and quick check-ins help support consistency throughout the day, especially during moments when focus or energy feels lower. ‣ Grounded in Cognitive Science Developed by neuroscience experts, CogniFit's patented Individualized Training System (ITS) is used by the scientific community, universities, hospitals, families, and medical centers around the world. ‣ The Benefits • Track your cognitive score (0-100) daily and weekly • Personalized training sessions based on the areas you want to focus on • A custom weekly plan, built around your routine • Scores across cognitive domains, including reasoning, coordination, memory, perception, and attention • Compare your Brain Age to your actual age • Guided mindfulness techniques to support your mental wellbeing • More than 100 interactive games, including Penguin Explorer, Mahjong, and Reaction Field • Video Coaches to guide you through every step • Brain games and brain teasers for adults and children alike ‣ Designed for Everyday Life A complete redesign brings a calmer, more intuitive experience that fits naturally into your routine. Short sessions, clearer feedback, and a more focused interface make daily cognitive care simple, approachable, and sustainable. Small moments, repeated daily, that's how real change happens. Are you ready to understand your brain a little better, every day? Pricing and Conditions CogniFit offers monthly ($9.99/mo) and annual ($59.99/yr) subscription packages. All amounts are in USD. All subscriptions are processed through the user’s app store account. Currency conversions for user’s outside of the US may apply. All subscriptions renew automatically until cancelled. For complete details, please review: https://www.cognifit.com/terms-and-conditions
CO2 World Info
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CO2 World Info is an educational app for exploring historical greenhouse gas emissions by country and estimating a personal lifestyle carbon footprint. WHAT YOU CAN DO • Interactive world map of country-level CO2 emissions • Country profiles with population context and emissions metrics • Global emissions rankings • Personal carbon footprint calculator (transport, home energy, diet, shopping) • Short educational notes about major greenhouse gases WHAT THIS APP IS NOT • Not live atmospheric sensor monitoring • Not a 3D globe or satellite product • Not an official government inventory portal • The footprint tool is a simplified educational estimate, not a certified audit DATA SOURCES Country emissions figures come from publicly available climate research datasets (for example Our World in Data and national inventory compilations). Values are historical and refreshed when source datasets publish updates. PRIVACY No account is required. The footprint calculator runs on your device. Privacy policy: https://linespotting.com/privacy-policy/
Screenshots
Verdict
The clearest difference is in-app purchases: CO2 World Info at none against CogniFit's 14. CogniFit's advantage is update cadence (weekly vs every 2 months). On price, ads, 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
Both are free to download. CogniFit sells 14 in-app purchases, starting at $4.99 per month. CO2 World Info asks for nothing beyond the download.
CogniFit ships an update weekly, CO2 World Info every 2 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | CogniFit | CO2 World Info |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (1.7K ratings) — better | — |
| Positive reviews | 71.0% of reviews | — |
| Number of ratings | 1.7K — better | — |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 240 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | CogniFit | LineSpotting AB |
Bugs and requests
CogniFit
Reported bugs
5 issues- Constant need to restart iPad to get app to work
- Games freezing and progress not saved
- Buttons and controls not working as expected
- Inconsistent loading and crashing issues
- Personalized training not functioning properly
Requested features
6 requests- More language options
- Ability to skip games during personalized training
- Option to practice specific weak areas
- Clearer instructions and tutorials for all games
- Accommodate for color blindness and visual impairments
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- More engaging and less repetitive games
CO2 World Info
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CogniFit
- Monthly Premium7 Days trial$4.991 Month
- Monthly Premium7 Days trial$6.991 Month
- Monthly Premium7 Days trial$7.991 Month
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- Monthly Premium7 Days trial$8.991 Month
- Monthly Premium7 Days trial$9.991 Month
- Monthly Subscription 50% Off$9.991 Month
- Subscription Monthly$12.991 Month
- Monthy Basic$19.991 Month
- Monthly Basic$19.991 Month
- CogniFit Premium7 Days trial$19.991 Month
- CogniFit Premium7 Days trial$59.991 Year
- Yearly Subscription 50% Off$59.991 Year
- Yearly Basic$119.991 Year
- Assessment - Full price$49.99
CO2 World Info
No in-app purchases









