# AnkiMobile Flashcards vs Cortex Flex Performance

The clearest difference is price: Cortex Flex Performance at Free against AnkiMobile Flashcards's $24.99. Cortex Flex Performance also leads on rating (5.0 vs 4.0) and review sentiment (100% vs 59%). AnkiMobile Flashcards's advantage is in-app purchases (none vs 1) and ratings volume (2.4K vs 10). On ads, device support and iOS requirement there is nothing between them.

Cortex Flex Performance is free to download; AnkiMobile Flashcards costs $24.99 up front. Cortex Flex Performance sells 1 in-app purchase, starting at $29.99 per month. AnkiMobile Flashcards asks for nothing beyond the download.

Cortex Flex Performance holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: AnkiMobile Flashcards has 2.4K ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 59% of AnkiMobile Flashcards's written reviews are positive against 100% of Cortex Flex Performance's.

AnkiMobile Flashcards ships an update every 6 weeks, Cortex Flex Performance fortnightly. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | AnkiMobile Flashcards | Cortex Flex Performance |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| Rating | [4.0 (2.4K ratings)](https://appshunter.io/ios/app/ankimobile-flashcards/id373493387/reviews) | **[5.0 (10 ratings)](https://appshunter.io/ios/app/cortex-flex-performance/id6749107751/reviews)** |
| Number of ratings | **2.4K** | 10 |
| Positive reviews | 58.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#1** | — |
| Size | 38 MB | 46 MB |
| Requires iOS | 15.2 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Anki Software, LLC](https://appshunter.io/developer/1895276950) | [Cortex Flex Inc](https://appshunter.io/developer/1828821837) |

## What reviewers say

### AnkiMobile Flashcards

[App page](https://appshunter.io/ios/app/ankimobile-flashcards/id373493387)

**Currently charting:** #1 Top Paid · Education, #9 Top Paid, #50 Top Grossing · Education (US App Store)

This flashcard app offers a powerful spaced repetition system for efficient learning and memorization. Sync your decks across all your devices, including desktop and web, for seamless study anywhere. Supports large collections, custom card creation, and detailed progress tracking.

**Highlights:** Spaced repetition scheduling (SM-2 and FSRS), Free sync with AnkiWeb across devices, Support for large card collections (100,000+), Offline study with local media storage, Flexible interface for efficient study, Detailed progress graphs and statistics, MathJax and LaTeX rendering

**Features:** Game Controller support, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💯 Excellent learning tool
- 🤓 Powerful spaced repetition algorithm
- 🌐 Seamless cross-device sync
- 🎨 Customizable flashcards
- 📚 Supports various media (text, images, audio, video)

**What reviewers complain about**

- 🤯 Steep learning curve
- 🤖 Unintuitive interface
- 🖼️ Issues with image syncing and display
- 🔌 Syncing problems between devices
- 🕰️ Slow performance and lag

**Reported bugs**

- Cards disappearing after updates
- Inconsistent behavior when switching between apps
- Inability to delete decks on mobile
- Sync issues causing data loss
- Compatibility problems with older iOS versions

**Requested features**

- Add dark mode option
- Improve card browsing and management features
- Integrate with Apple Pencil for better note-taking
- Add support for more file formats (e.g., Opus audio)
- Enhance mobile-specific features and UI


### Cortex Flex Performance

[App page](https://appshunter.io/ios/app/cortex-flex-performance/id6749107751)

This app offers brain training routines developed by neuroscientists to enhance focus, reaction time, and mental resilience for athletes. It includes specialized workouts, mental skills tools, and insights from recruiters to help users perform at their peak.

**Highlights:** Neuropriming Workouts, Mental Skills Training, Recruitment Insights, Game-Day Prep, Elite Athlete Community

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cortex Monthly | $29.99 | per month |


## Frequently asked questions

### Is AnkiMobile Flashcards free?

AnkiMobile Flashcards costs $24.99, with no in-app purchases.

### Is Cortex Flex Performance free?

Cortex Flex Performance is free to download, with in-app purchases available.

### Which has better reviews, AnkiMobile Flashcards or Cortex Flex Performance?

Cortex Flex Performance is rated higher. AnkiMobile Flashcards averages 4.0 out of 5 from 2.4K ratings, while Cortex Flex Performance averages 5.0 from 10 ratings.

### Do AnkiMobile Flashcards or Cortex Flex Performance have ads?

Neither AnkiMobile Flashcards nor Cortex Flex Performance shows ads.

### Which is updated more often, AnkiMobile Flashcards or Cortex Flex Performance?

AnkiMobile Flashcards ships an update every 6 weeks, and Cortex Flex Performance fortnightly. Most recently, AnkiMobile Flashcards was updated on November 8, 2026 and Cortex Flex Performance on October 30, 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.*