# AnkiMobile Flashcards vs Eureka Viewer

The clearest difference is review sentiment: AnkiMobile Flashcards at 59% against Eureka Viewer's 0%. AnkiMobile Flashcards also leads on rating (4.0 vs 2.5) and ratings volume (2.3K vs 11). Eureka Viewer's advantage is price (Free vs $24.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Eureka Viewer is free to download; AnkiMobile Flashcards costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AnkiMobile Flashcards holds the better App Store score, 4.0 against 2.5. That said, the two scores are not equally well evidenced: AnkiMobile Flashcards has 2.3K ratings behind it against 11, 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 0% of Eureka Viewer's.

AnkiMobile Flashcards ships an update every 6 weeks, Eureka Viewer every 3 months. Both last shipped on October 16, 2026.

## The numbers

| Metric | AnkiMobile Flashcards | Eureka Viewer |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| Rating | **[4.0 (2.3K ratings)](https://appshunter.io/ios/app/ankimobile-flashcards/id373493387/reviews)** | [2.5 (11 ratings)](https://appshunter.io/ios/app/eureka-viewer/id1532773030/reviews) |
| Number of ratings | **2.3K** | 11 |
| Positive reviews | **58.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Paid | **Free** |
| Best chart rank | **#1** | — |
| Size | 46 MB | 261 MB |
| Requires iOS | 15.2 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Anki Software, LLC](https://appshunter.io/developer/1895276950) | [ArchiMedia Advantage Inc.](https://appshunter.io/developer/1532773032) |

## What reviewers say

### AnkiMobile Flashcards

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

**Currently charting:** #1 Top Paid · Education, #3 Top Paid, #45 Top Grossing · Education (US App Store)

This app is a powerful and intelligent flashcard companion for a popular desktop program. It offers smart scheduling algorithms, flexible study interfaces, and comprehensive statistics to aid learning. Sync your progress across devices and study offline with media-rich cards.

**Highlights:** Cloud synchronization across devices, SM2 and FSRS scheduling algorithms, Flexible and efficient study interface, Comprehensive study graphs and statistics, Support for large card decks, Offline study with media, Advanced card search functionality

**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


### Eureka Viewer

[App page](https://appshunter.io/ios/app/eureka-viewer/id1532773030)

This eReader allows secure access and annotation of digitally protected PDF documents from specific platforms. It offers tools like highlighting, underlining, and note-taking, with an automatic index for easy reference and cross-device syncing. Optimized for statistical and mathematical content, it's ideal for intensive study.

**Highlights:** Secure access to protected PDFs, Highlighting and underlining, Margin notes and custom page notes, Automatic annotation index, Cross-device syncing, Optimized for statistical/mathematical content, Offline access (limited terms)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AnkiMobile Flashcards free?

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

### Is Eureka Viewer free?

Eureka Viewer is free to download, with no in-app purchases.

### Which has better reviews, AnkiMobile Flashcards or Eureka Viewer?

AnkiMobile Flashcards is rated higher. AnkiMobile Flashcards averages 4.0 out of 5 from 2.3K ratings, while Eureka Viewer averages 2.5 from 11 ratings.

### Do AnkiMobile Flashcards or Eureka Viewer have ads?

Neither AnkiMobile Flashcards nor Eureka Viewer shows ads.

### Which is updated more often, AnkiMobile Flashcards or Eureka Viewer?

AnkiMobile Flashcards ships an update every 6 weeks, and Eureka Viewer every 3 months. Most recently, AnkiMobile Flashcards was updated on October 16, 2026 and Eureka Viewer on October 16, 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.*