Comparison

Cogni vs ErallMemory

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://www.notion.so/Terms-of-Use-122d703e827a81c89718d91448511266 Privacy Policy: https://www.notion.so/Privacy-Policy-122d703e827a81798c36cf1c20b44220

About

ErallMemory

Features
Read full description

Flashcards that help you remember what you study. Every day. ErallMemory is a memory system designed to help you retain what you learn, not just review it. • Improve retention with spaced repetition (SRS) • Study in minutes, not hours • Generate flashcards with AI from any topic • Create your own flashcards with text, images, audio, and video • Search the library and import ready-to-study collections • Track your streak and build consistent habits • Set reminders so you never miss a session • Stay focused with a clean, distraction-free interface • Earn certificates when you reach high EMI scores Stop forgetting what you learn. Build knowledge that lasts. Privacy Policy: https://erallcode-static-pages.onrender.com/erallmemory/privacy-en.html Terms of Use: https://erallcode-static-pages.onrender.com/erallmemory/terms-ios-en.html

Screenshots

Cogni4 screens
ErallMemory4 screens

Verdict

The call

Cogni and ErallMemory are too close to call on the numbers: across 6 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 ErallMemory sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Cogni ships an update fortnightly, ErallMemory every 2 weeks. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.

ScorecardNo meaningful differences
Cogni versus ErallMemory: the parameters behind the verdict, then further details
ParameterCogniErallMemory
PriceFreeFree
Rating4.7 (1.7K ratings) — better—
Positive reviews34.9% of reviews—
Number of ratings1.7K — better—
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.3 — better
Further details — not scored
Size62 MB93 MB
Age rating4+4+
DeveloperCOGNIFLY LTDErallApps Solutions LTDA.

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

ErallMemory

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 Annual3 Days trial$29.991 Year
  • Premium Annual$49.991 Year
One-time2
  • Lifetime Premium$49.99
  • Premium Lifetime$99.99
2 purchases

ErallMemory

Subscriptions2
  • Monthly Premium$2.991 Month
  • Yearly Premium$14.991 Year

Questions

Is Cogni free?
Cogni is free to download, with in-app purchases available.
Is ErallMemory free?
ErallMemory is free to download, with in-app purchases available.
Do Cogni or ErallMemory have ads?
Neither Cogni nor ErallMemory shows ads.
Which is updated more often, Cogni or ErallMemory?
Cogni ships an update fortnightly, and ErallMemory every 2 weeks. Most recently, Cogni was updated on September 23, 2026 and ErallMemory on September 9, 2026.

Other comparisons