Comparison

Cogni vs Locked In

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, and lecture recordings. It employs spaced repetition with the FSRS algorithm to optimize memorization and allows for Anki deck import. 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
  • Integrated study notes
  • Offline study mode
  • Library of pre-made decks
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

Locked In

This app provides an offline historical study library for the retired CompTIA Data+ DA0-001 blueprint. It includes lessons, practice questions, interactive activities, flashcards, and progress tracking tools. A portion is free to explore, with a one-time purchase unlocking the full content.

Highlights
  • Historical coverage of Data+ domains
  • Short lessons with visual explanations
  • Hundreds of practice questions
  • Interactive PBQ-style activities
  • Flashcards with spaced repetition
  • Progress tracking and weak-spot review
Features
Read full description

Study for the current CompTIA Data+ exam, DA0-002 (V2), with lessons, practice questions, and scenario activities organized under its 18 published objectives. Lessons and practice work offline once installed. ABOUT THE EXAM CompTIA launched DA0-002 on 14 October 2025 and estimates it will retire around 2028. The exam has up to 90 multiple-choice and performance-based questions in 90 minutes, and the passing score is 675 on a 100 to 900 scale. Confirm current details with CompTIA before you book. LESSONS Work through 49 authored lessons organized under all 18 published objectives and the five domain weights: - Data Concepts and Environments: 20% - Data Acquisition and Preparation: 22% - Data Analysis: 24% - Visualization and Reporting: 20% - Data Governance: 14% Every lesson ends with a quick check. 14 lessons carry diagrams, 22 in all: star and relational schemas, ETL and ELT pipelines, join types, sampling methods, hypothesis tests, chart selection, data lineage, retention tiers, and data quality dimensions. PRACTICE Use 391 reviewed multiple-choice questions, each with an explanation and mapped to the objective it tests. The timed practice exam deals 90 questions in 90 minutes in the published domain proportions, with flags, a question navigator, and a final review. Practice scores are study feedback and do not predict a certification result. PERFORMANCE-BASED ACTIVITIES Complete 11 scenario activities: classify data, choose storage, order ETL and cleaning steps, match charts and statistics to their uses, and pick privacy controls. You place items with a tap and reorder steps with arrow buttons. REVIEW Review 126 flashcards with spaced repetition, and search a 92-entry glossary: all 42 acronyms from the DA0-002 objective document plus 50 concept entries. FREE SAMPLER AND FULL UNLOCK Without a purchase you get 9 lessons, 10 questions, 30 flashcards, 2 PBQ-style activities, all 42 glossary acronyms, and 33 of the 50 glossary concept definitions. A one-time Full Unlock opens the rest, including the timed practice exam. The price is loaded from the App Store in your currency. There is no subscription, advertising, or account. Locked In is an independent study aid. It is not affiliated with, endorsed by, or sponsored by CompTIA, Inc. CompTIA® and Data+® are trademarks of CompTIA, Inc. It contains no official exam questions, and no study tool can guarantee an exam result.

Screenshots

Cogni4 screens
Locked In4 screens

Verdict

The call

Cogni and Locked In are too close to call on the numbers: across 7 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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 Locked In sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Cogni ships an update weekly, Locked In every 2 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
Cogni versus Locked In: the parameters behind the verdict, then further details
ParameterCogniLocked In
PriceFreeFree
Rating4.7 (1.7K ratings) — better—
Positive reviews35.8% of reviews—
Number of ratings1.7K — better—
Update frequencyWeekly — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size76 MB5 MB
Age rating4+4+
DeveloperCOGNIFLY LTDOMAR DANIEL GRAZIANO

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

Locked In

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
1 purchases

Locked In

One-time1
  • Locked In! Data+ Unlock$14.99

Questions

Is Cogni free?
Cogni is free to download, with in-app purchases available.
Is Locked In free?
Locked In is free to download, with in-app purchases available.
Do Cogni or Locked In have ads?
Neither Cogni nor Locked In shows ads.
Which is updated more often, Cogni or Locked In?
Cogni ships an update weekly, and Locked In every 2 weeks. Most recently, Cogni was updated on November 8, 2026 and Locked In on October 31, 2026.

Other comparisons