Comparison

Cogni vs StudioAI

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

Head to head
About

Cogni

This app uses AI to generate flashcards from various sources like PDFs, notes, or audio. It employs spaced repetition for efficient memorization and allows importing existing decks. Study notes can be generated alongside cards, and a library of pre-made decks is available.

Highlights
  • AI flashcard generation
  • FSRS spaced repetition
  • Anki deck import
  • Notes alongside cards
  • Offline study
  • Pre-made deck library
  • Cross-platform sync
Read full description

Cogni is a flashcard app with FSRS spaced repetition, AI flashcard generation and Anki deck import. Study on iPhone, iPad, Android and the web: your decks and progress sync through one account, and reviews work offline. MAKE FLASHCARDS WITH AI Upload a PDF, photograph your notes or textbook pages, upload a lecture recording, paste text or type a topic. Cogni drafts question-and-answer and cloze cards. You check the drafts and keep the ones you want. FSRS SPACED REPETITION Every card is scheduled with FSRS, the open-source algorithm that predicts when you are about to forget. After each answer, rate your recall (Again, Hard, Good or Easy) and see when the card comes back. Each day you review only what is due. IMPORT YOUR ANKI DECKS Save an .apkg file in Files, tap + in Cogni and choose “Import .apkg”. Cards, subdecks, cloze cards, images and audio come with it. Anki's review history stays in Anki: FSRS builds a new schedule from your answers in Cogni. NOTES NEXT TO YOUR CARDS Generate study notes together with your cards and read them in Cogni on the web, linked to the cards they produced. READY-MADE DECKS Browse a library of 5,000+ decks for languages, medicine, anatomy and more, add a deck and start studying. BUILT FOR - Medical, nursing and pre-med students - Language learners building vocabulary - Students preparing for exams - Anyone moving their decks from another flashcard app FREE TO START Create cards, import decks, sync and study up to 40 card reviews a day for free, and try one AI generation. Cogni Premium removes the daily review limit, adds text-to-speech and includes AI generation within your plan's allowance. Terms of Use: https://cogni.cards/terms/ Privacy Policy: https://cogni.cards/privacy/

About

StudioAI

Learn languages by creating personalized exercises from your own content like YouTube videos or articles. Features AI-powered flashcards, quizzes, grammar practice, and an offline AI tutor. Track progress with streaks and charts.

Highlights
  • Create exercises from YouTube, PDFs, and articles
  • AI-powered flashcards with FSRS scheduling
  • Personalized quizzes and grammar practice
  • Offline AI tutor on supported devices
  • Progress tracking with streaks and charts
  • Supports multiple languages
Features
Read full description

StudioAI – AI Language Learning from Your Own Content Most language apps make you follow their content. StudioAI learns from yours. Upload any YouTube video, PDF, or article and get AI-powered exercises — on any topic, in any language you're learning. Structured Learning: A1 to C2. Scheduled by FSRS. Private by design. NEW IN 1.1: OUR BIGGEST UPDATE YET • A brand-new, lively and tactile design • Today: your daily practice in one tap, in short rounds of 5 • Daily goal, streaks and badges for every language • A new Progress screen: words mastered, your path and your materials • More natural Conversations by voice or chat • Sharper AI, with explanations in your native language Guided Learning: A1 to Advanced Start with a free placement test and follow a curriculum built around your level. Interactive units cover grammar, reading, listening, translation, and fill-in-the-blank exercises — each targeting a specific skill. Studio: Learn from What You Love Upload a PDF, YouTube video, or web article and StudioAI transforms it into AI-powered practice modes built from your own content: - Flashcards — scheduled by FSRS at the exact moment you're about to forget, so every review counts - Quizzes — questions from your own sources to check what you actually understood, not just what you memorized - Podcast-style audio summaries - Grammar Exercises: Practice grammar inside sentences that actually sound real — notice patterns, fix recurring mistakes, and apply rules more confidently - Cloze: Complete sentences using context, not memorization — key for reading and understanding more naturally - Dictation: Listen and write exactly what you hear - Error Hunting: Spot grammar mistakes hidden in real sentences - Transformations: Rewrite phrases to master grammar structures - Word Sorting: Match collocations or classify words into semantic groups - Micro Writing: Short writing tasks with model answers and feedback Local AI Tutor - Private by Design On supported iPhone and iPad models with 6GB RAM or more, chat with an AI tutor that runs entirely on your device. No server. No internet required. It knows your level, native language, and current unit to give you precise hints and explanations instantly. Never Forget a Word with Smart Spaced Repetition (FSRS) StudioAI schedules every review at the exact moment you're about to forget it, so every minute of study counts. Progress & Motivation Streaks, review heatmaps, performance charts, and vocabulary health — all at a glance. Smart suggestions keep your momentum going. Built for Real Life - Study offline, sync when you're back online - Face ID / Touch ID protection - Designed for iPhone and iPad Available languages: English, Spanish, French, German, Portuguese, Japanese, Korean, Chinese, Arabic, Italian, Serbian. Try StudioAI Pro free for 7 days to unlock higher creation limits, advanced tools, and full AI Tutor access. SUBSCRIPTION INFORMATION StudioAI Pro is an auto-renewable subscription. • Title: StudioAI Pro Monthly (or Yearly) • Length of subscription: 1 month (or 1 year) • Price: shown in the app before you subscribe; it may vary by region. Payment will be charged to your Apple ID account at confirmation of purchase. Subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Privacy Policy: https://www.studio-ai.es/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Cogni4 screens
StudioAI4 screens

Verdict

The call

The clearest difference is ratings volume: Cogni at 1.7K against StudioAI's 1. StudioAI's advantage is rating (5.0 vs 4.7) and update cadence (every 4 days vs every 9 days). On price, ads, in-app purchases and monetization model 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 StudioAI sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

StudioAI 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 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Cogni ships an update every 9 days, StudioAI every 4 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Cogni versus StudioAI: the parameters behind the verdict, then further details
ParameterCogniStudioAI
PriceFreeFree
Rating4.7 (1.7K ratings)5.0 (1 ratings) — better
Positive reviews35.8% of reviews—
Number of ratings1.7K — better1
Update frequencyEvery 9 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size75 MB98 MB
Age rating+417+
DeveloperCOGNIFLY LTDFrancisco Bertero

Customer experience

Cogni

All ratings1,689 ratings
Positive92.8%
Neutral2.7%
Negative4.4%
Written reviews201 reviews
Positive35.8%
Neutral17.4%
Negative46.8%

StudioAI

All ratings1 ratings
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

StudioAI

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
2 purchases

StudioAI

Subscriptions2
  • StudioAI Pro Monthly7 Days trial$6.991 Month
  • StudioAI Pro Annual7 Days trial$59.991 Year

Questions

Is Cogni free?
Cogni is free to download, with in-app purchases available.
Is StudioAI free?
StudioAI is free to download, with in-app purchases available.
Which has better reviews, Cogni or StudioAI?
StudioAI is rated higher. Cogni averages 4.7 out of 5 from 1.7K ratings, while StudioAI averages 5.0 from 1 ratings.
Do Cogni or StudioAI have ads?
Neither Cogni nor StudioAI shows ads.
Which is updated more often, Cogni or StudioAI?
Cogni ships an update every 9 days, and StudioAI every 4 days. Most recently, Cogni was updated on November 5, 2026 and StudioAI on October 31, 2026.

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