Comparison

Cogni vs StudyRank

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

Head to head
About

Cogni

Create and study flashcards to master new materials efficiently. Utilize an enhanced spaced repetition algorithm to optimize study sessions for exams, languages, or complex subjects. Millions trust this method to achieve their learning goals.

Highlights
  • Create and review custom flashcards
  • Spaced repetition algorithm
  • Pre-made deck library
  • AI-enhanced recall
  • Progress tracking
  • Offline access
Read full description

Cogni empowers you to master new materials effortlessly by creating and studying flashcards. Built on an enhanced spaced repetition algorithm, the app optimizes your study sessions, ensuring you get the most out of your learning. Whether preparing for exams, studying languages, or mastering complex subjects, millions trust flashcards to achieve their goals. Start your journey to mastery today—no limits, no boundaries, just learning! - Languages - Medicine (MCAT, USMLE & More) - Anatomy & Physiology - Exam preparation (SAT, GRE & More) - Math - Law - Geography - Computing - And many more! Key Benefits: - Easily create and review flashcards tailored to your learning needs. - Customize your cards with colors, lists, and more to fit your style. - Access a massive library of pre-made decks to jumpstart your learning. - Review lecture materials and prep for exams with powerful spaced repetition. Thousands of students boost their grades with this science-backed approach. - AI-enhanced spaced repetition (SRS) for optimal recall. - Flexible study interface with swipe and tap actions for efficient learning. - Detailed statistics and progress tracking to monitor your success. - Offline access to study with media-supported flashcards. Get started with Cogni today and take control of your learning journey! Terms of Use: https://cogni.cards/terms/ Privacy Policy: https://cogni.cards/privacy/

About

StudyRank

This app helps students focus and track study hours with friends. It offers a timer, progress tracking, and friendly competition to boost motivation. Gamified elements like levels and achievements make studying more engaging.

Highlights
  • Pomodoro-style timer or stopwatch
  • Live Activity and Dynamic Island integration
  • Detailed study stats and heatmap
  • Gamified leveling and achievements
  • Friend leaderboards and duels
  • Home Screen widgets
Features
Read full description

Studying is more fun with friends. StudyRank helps you focus, track every hour you study, and turn your progress into a friendly competition — so you actually want to sit down and get to work. Start a focus session, log your hours, and watch your stats, streaks and level climb. Add friends to see who studies more each week, and keep each other motivated. FOCUS TIMER - Pomodoro-style timer or an open stopwatch - Live Activity + Dynamic Island keep your session on your Lock Screen - A gentle notification when your focus session is done - Log past sessions manually anytime YOUR STATS - Study time for today, this week, this month and all time - Clean charts and a study heatmap - Build a daily streak and never break the chain - Earn XP and level up for every minute you focus COMPETE WITH FRIENDS - Add friends and climb the weekly leaderboard - Weekly 1-on-1 duels — whoever studies the most wins - Create or join study groups - See who's studying right now STAY MOTIVATED - Unlock achievements as you hit milestones - Home Screen widgets for your stats, leaderboard and duel - A daily study reminder to keep the habit going Sign in with Apple to back up your progress and sync across your devices. Your data stays private — we never sell it. Whether you're studying for exams, finals and midterms, or just building a better study habit, StudyRank keeps you focused and motivated. Download it, invite a friend, and see who comes out on top this week. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Cogni4 screens
StudyRank4 screens

Verdict

The call

The clearest difference is review sentiment: StudyRank at 100% against Cogni's 36%. StudyRank also leads on rating (5.0 vs 4.7). Cogni's advantage is ratings volume (1.7K vs 4) and iOS requirement (16.4 vs 18.0). On price, update cadence, ads and in-app purchases 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. Cogni sells 9 in-app purchases, starting at $4.99 per month and StudyRank sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

StudyRank holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Cogni has 1.7K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 36% of Cogni's written reviews are positive against 100% of StudyRank's.

UpkeepUpdate frequency

Cogni ships an update every 10 days, StudyRank every 5 days. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 6 level
Cogni versus StudyRank: the parameters behind the verdict, then further details
ParameterCogniStudyRank
PriceFreeFree
Rating4.7 (1.7K ratings)5.0 (4 ratings) — better
Positive reviews35.7% of reviews100.0% of reviews — better
Number of ratings1.7K — better4
Update frequencyEvery 10 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better18.0
Further details — not scored
Size62 MB35 MB
Age rating4+4+
DeveloperCOGNIFLY LTDMarkus Loibner

Customer experience

Cogni

All ratings1,683 ratings
Positive93.0%
Neutral2.7%
Negative4.3%
Written reviews199 reviews
Positive35.7%
Neutral17.6%
Negative46.7%

StudyRank

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Cogni

Reported bugs

2 issues
  • App no longer available after paying for annual subscription
  • Occasional crashes

Requested features

4 requests
  • Integrate ChatGPT or Claude for automatic card creation
  • Add sub-decks for larger decks that need more review
  • Improve algorithm for hard/again ratings to better target struggling cards
  • Add subsections for decks to study different sections separately

StudyRank

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Cogni

Subscriptions7
  • Premium Monthly$4.991 Month
  • Premium Monthly$7.991 Month
  • Premium Monthly$14.991 Month
Show 4 more
  • Premium Annual$19.991 Year
  • Premium Annual$24.991 Year
  • Premium Annual$29.991 Year
  • Premium Annual$49.991 Year
One-time2
  • Lifetime Premium$69.99
  • Premium Lifetime$99.99
3 purchases

StudyRank

Subscriptions2
  • Pro$1.991 Month
  • Pro3 Days trial$9.991 Year
One-time1
  • Pro$17.99

Questions

Is Cogni free?
Cogni is free to download, with in-app purchases available.
Is StudyRank free?
StudyRank is free to download, with in-app purchases available.
Which has better reviews, Cogni or StudyRank?
StudyRank is rated higher. Cogni averages 4.7 out of 5 from 1.7K ratings, while StudyRank averages 5.0 from 4 ratings.
Do Cogni or StudyRank have ads?
Neither Cogni nor StudyRank shows ads.
Which is updated more often, Cogni or StudyRank?
Cogni ships an update every 10 days, and StudyRank every 5 days. Most recently, Cogni was updated on October 17, 2026 and StudyRank on October 14, 2026.

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