# Cogni vs ErallMemory

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.

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.

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

## The numbers

| Metric | Cogni | ErallMemory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.7K ratings)](https://appshunter.io/ios/app/cogni-ai-flashcards-and-notes/id6737768905/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 34.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 62 MB | 93 MB |
| Requires iOS | 16.4 | **15.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [COGNIFLY LTD](https://appshunter.io/developer/1808620132) | [ErallApps Solutions LTDA.](https://appshunter.io/developer/1807098217) |

## What reviewers say

### Cogni

[App page](https://appshunter.io/ios/app/cogni-ai-flashcards-and-notes/id6737768905)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Monthly | $7.99 | per month |
| Premium Monthly | $14.99 | per month |
| Premium Annual | $19.99 | per year |
| Premium Annual | $24.99 | per year |
| Premium Annual | $29.99 | per year |
| Premium Annual | $49.99 | per year |
| Lifetime Premium | $49.99 | one-time |
| Premium Lifetime | $99.99 | one-time |

**What reviewers like**

- 👍 Great app for memorizing and growing recall skills
- 🚀 Lifesaver for challenging, memory-heavy subjects like med school
- 👍 Sleek and user-friendly interface, no distractions

**What reviewers complain about**

- 🐛 Locked up referring to an upgrade page, couldn't continue using the app
- 🐛 Not easy to use, inaccurate for Spanish language
- 🐛 Desktop flashcards deck won't sync with mobile, forcing duplicate work

**Reported bugs**

- App no longer available after paying for annual subscription
- Occasional crashes

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/erallmemory/id6744327520)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Yearly Premium | $14.99 | per year |


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*