Comparison

Kinnu vs Devil's Advocate

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

Devil's Advocate

Prepare for your SQE exams with a comprehensive revision tool. Access over 1,000 MCQs, a personalized Blackletter Law Index, and performance analytics to track your progress and compare with peers. Includes podcasts and a study planner for on-the-go learning.

Highlights
  • Over 1,000 MCQs with filtering and timed mocks
  • Personalized Blackletter Law Index for saving rules
  • Spaced repetition for reviewing incorrect answers
  • Detailed SQE performance analytics and peer comparison
  • Module and subtopic score tracking
  • SQE revision podcasts and study planner
Features
Read full description

This update brings subscriptions, a smoother sign-up experience, and a range of new ways to learn and stay up to date. Subscriptions You can now subscribe directly in the app, with three plans to suit how you study: monthly, 3-monthly, or 6-monthly. A subscription unlocks full access to both the app and the website. Manage or cancel your subscription any time from your Profile, and use Restore Purchase to get back in on a new device. A better purchase experience We’ve redesigned the sign-up and payment flow to make subscribing clearer and quicker. Insights Browse scrollable Insight articles featuring text, images, embedded videos, and links to relevant areas of the app. Support hub A new Support section (accessible from the bottom bar) lets you search and browse help articles by category — including past Insights, so nothing useful ever disappears. Request a feature Tell us what you’d like to see next. You can now submit feature requests straight from your account. Podcasts with video Podcast episodes can now include embedded video where available. Push notifications Opt in to notifications to stay informed about app updates and news (with separate consent for promotional messages). Misc quality-of-life improvements Terms of use: https://wearedevilsadvocate.com/app-terms/ Privacy policy: https://wearedevilsadvocate.com/da-privacy-policy/

Screenshots

Kinnu4 screens
Devil's Advocate4 screens

Verdict

The call

The clearest difference is in-app purchases: Devil's Advocate at none against Kinnu's 4. Devil's Advocate also leads on review sentiment (100% vs 87%). Kinnu's advantage is update cadence (every 6 days vs every 2 months) and iOS requirement (17.0 vs 26.0). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Kinnu sells 4 in-app purchases, starting at $1.99 per month. Devil's Advocate asks for nothing beyond the download.

UpkeepUpdate frequency

Kinnu ships an update every 6 days, Devil's Advocate every 2 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Kinnu versus Devil's Advocate: the parameters behind the verdict, then further details
ParameterKinnuDevil's Advocate
PriceFreeFree
Rating4.8 (512 ratings) — better—
Positive reviews87.2% of reviews100.0% of reviews — better
Number of ratings512 — better—
Update frequencyEvery 6 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.0
Further details — not scored
Size101 MB28 MB
Age rating12+4+
DeveloperKinnu LimitedDevil's Advocate

Customer experience

Kinnu

All ratings512 ratings
Positive94.1%
Neutral2.0%
Negative3.9%
Written reviews297 reviews
Positive87.2%
Neutral4.7%
Negative8.1%

Devil's Advocate

Written reviews24 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Devil's Advocate

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Kinnu

Subscriptions1
  • Monthly$1.991 Month
One-time3
  • Kinnu Certificate$7.99
  • Kinnu Certificate$14.99
  • Kinnu Certificate$19.99
None

Devil's Advocate

No in-app purchases

Questions

Is Kinnu free?
Kinnu is free to download, with in-app purchases available.
Is Devil's Advocate free?
Devil's Advocate is free to download, with no in-app purchases.
Do Kinnu or Devil's Advocate have ads?
Neither Kinnu nor Devil's Advocate shows ads.
Which is updated more often, Kinnu or Devil's Advocate?
Kinnu ships an update every 6 days, and Devil's Advocate every 2 months. Most recently, Kinnu was updated on October 25, 2026 and Devil's Advocate on October 24, 2026.

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