Kinnu vs Cog ADHD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kinnu
This app offers bite-sized learning content across a wide range of subjects, from psychology and science to history and technology. It utilizes cognitive science and a unique "Memory Shield" technology to help users retain information effectively, making learning engaging and fun.
- Bite-sized, expert-edited content
- Memory Shield technology for retention
- Gamified learning sessions
- Community-driven content development
- Knowledge Bank progress tracking
- Interactive, adaptive questions
- Audio versions of content
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We built Kinnu to give everyone the power to learn anything they want to, whatever their goals. With Kinnu you can: Follow your curiosity Become the most interesting person in the room Never forget what you’ve learned with our Memory Shield technology Find a cure to doomscrolling on social media Our microlearning app harnesses cognitive science to help you build lasting knowledge across many domains. It’s the product of several years of research from experts in the science of learning. Popular courses: Psychology: Mental Health, Positive Psychology, Superpower Learning, Cognitive Biases Lifeskills: Personal Finance, Persuasion, Communications Health: Science of Sleep, Science of Exercise, Healthy Habits Science: Laws of Physics, Fungi, Astronomy, Quantum Physics, Chemistry, Zoology History: World History, Ancient Civilizations, Near Modern Civilizations, Rome Technology: Artificial Intelligence, Generative AI, Cybersecurity, Data Science Literature: Poetry, Folklore, 10 Great Novels, Shakespeare Absolutely Random: Dinosaurs, Greek Mythology, Secret Societies and Cults, Video Games Product features: Bite-sized, expert edited content Memory Shield technology – a new method to never forget what you’ve learned Highly addictive gamified learning sessions Community votes on where to take the app next Track your progress and watch your mind grow with the Knowledge Bank Super clean design that makes daily learning a joy Map based design to explore content and conquer new areas Interactive, adaptive questions and games to refresh and retain your knowledge. Audio version of all content to learn on the go What our users say about us: “Literally feel myself getting smarter using this app… the questions wire stuff to my brain when I do the smart session every day.” “Learning has never been this fun. Engaging, interesting, diverse. Kinnu has it all.” “Fun, easy to use. Super fun to have short little bites of education on tons of interesting topics.” “It’s amazing, and it’s enhancing my life.” Do you have an idea about how we could make our app and its content even better? Email us at support@kinnu.xyz - we listen, and we hear you. SUBSCRIPTION This app contains an optional in-app subscription. Payment will be charged to your iTunes Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage subscriptions in your App Store account settings. By using this app, you agree to the Kinnu Terms of Use: https://kinnu.xyz/terms Privacy Notice: https://kinnu.xyz/privacy Email: support@kinnu.xyz
Cog ADHD
This app helps users track ADHD symptoms and offers personalized education, coping strategies, and advice. It includes features for celebrating wins, accessing insights, and a cognitive behavioral therapy program. Users can also book sessions with qualified therapists.
- ADHD symptom tracker
- Celebrate wins
- ADHD insights
- Cognitive Behavioral Therapy program
- Book therapist sessions
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Cog ADHD is inspired by the face to face ADHD therapy process and tries to bring that to your phone. The app helps you note your ADHD symptoms and then responds with personalised education, coping strategies and advice on how to manage those symptoms. Features include: - ADHD symptoms tracker - Wins: Celebrate your wins by takin time to note them down - Insights: In-app stories that reveal the latest insights about ADHD - Cog BT: ADHD Cognitive Behavioural Therapy programme - Cog Clinic: Book a session with a qualified ADHD therapist today Built by a talented neurodiverse team who have mastered the art of focus. --- Privacy Policy https://www.cogadhd.com/privacy-policy Terms of Use https://www.cogadhd.com/terms-of-use
Screenshots
Verdict
The clearest difference is ads: Kinnu at none against Cog ADHD's shown. Kinnu also leads on ratings volume (494 vs 1) and update cadence (every 6 days vs every 3 weeks). Cog ADHD's advantage is rating (5.0 vs 4.8). On price, in-app purchases, monetization model 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. Kinnu sells 4 in-app purchases, starting at $1.99 per month and Cog ADHD sells 4 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
Cog ADHD holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Kinnu has 494 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 87% of Kinnu's written reviews are positive against 71% of Cog ADHD's, so the app with the better star average is not the one people write more warmly about.
Kinnu ships an update every 6 days, Cog ADHD every 3 weeks. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.
| Parameter | Kinnu | Cog ADHD |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (494 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 87.5% of reviews — better | 71.4% of reviews |
| Number of ratings | 494 — better | 1 |
| Update frequency | Every 6 days — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 101 MB | 41 MB |
| Age rating | 12+ | 17+ |
| Developer | Kinnu Limited | Cog Enterprise B.V |
Customer experience
Kinnu
Cog ADHD
Bugs and requests
Kinnu
Reported bugs
4 issues- Frequent app crashes
- Progress and data loss issues
- Syncing problems
- Compatibility issues with older devices
Requested features
5 requests- Ability to highlight or take notes
- More in-depth content and sources
- Customization options (e.g., dark mode)
- Ability to connect with others
- Improved notification and reminder system
Cog ADHD
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Kinnu
- Monthly$1.991 Month
- Kinnu Certificate$7.99
- Kinnu Certificate$14.99
- Kinnu Certificate$19.99
Cog ADHD
- Monthly Subscription7 Days trial$6.991 Month
- Monthly Subscription7 Days trial$13.991 Month
- Annual Subscription7 Days trial$49.991 Year
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- Annual Subscription7 Days trial$99.991 Year









