# AlgoApp vs Flashcards by HS

AlgoApp and Flashcards by HS both sit at 4.7 stars, but that hides the real split: 93% of Flashcards by HS's written reviews are positive against 50% of AlgoApp's. Flashcards by HS also leads on in-app purchases (none vs 4). AlgoApp's advantage is ads (none vs shown) and update cadence (every 4 days vs every 4 months). On price, rating and iOS requirement there is nothing between them.

Both are free to download. AlgoApp sells 4 in-app purchases, starting at $9.99 per month. Flashcards by HS asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for AlgoApp against 4.6 for Flashcards by HS. That said, the two scores are not equally well evidenced: AlgoApp has 20K ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 50% of AlgoApp's written reviews are positive against 93% of Flashcards by HS's.

AlgoApp ships an update every 4 days, Flashcards by HS every 4 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | AlgoApp | Flashcards by HS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (20K ratings)](https://appshunter.io/ios/app/algoapp-flashcards/id689185915/reviews)** | [4.6 (5 ratings)](https://appshunter.io/ios/app/flashcards-by-hs/id1182307237/reviews) |
| Number of ratings | **20K** | 5 |
| Positive reviews | 49.8% of reviews | **93.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 4 months |
| Monetization | Freemium | **Ad-supported** |
| Size | 51 MB | 22 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 12+ | +4 |
| Developer | [AlgoApp Inc](https://appshunter.io/developer/689185918) | [KAZUTERU YOKOI](https://appshunter.io/developer/605271729) |

## What reviewers say

### AlgoApp

[App page](https://appshunter.io/ios/app/algoapp-flashcards/id689185915)

Create and study flashcards for languages or academic subjects using AI-powered tools and advanced spaced repetition. Supports offline use, cross-device syncing, and imports from other platforms. Offers a free trial for unlimited access.

**Highlights:** AI-powered PDF to flashcard conversion, Automatic translation and text-to-speech, Offline study mode, Cross-device syncing, Furigana and Pinyin annotations, Anki deck import, Study groups

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited: 1-Month | $9.99 | per month |
| AnkiApp Unlimited | $24.99 | per year |
| Unlimited: 1-Year | $29.99 | per year |
| Unlimited: Lifetime | $149.99 | one-time |

**What reviewers like**

- 👍 Efficient flashcard creation and review
- 🚀 Sleek and user-friendly interface
- 💡 Useful AI-powered features
- 🚀 Convenient cross-device syncing
- 👍 Effective spaced repetition algorithm

**What reviewers complain about**

- 🐛 Frequent glitches and bugs
- 🔒 Lack of transparency around paid features
- 🐛 Syncing and data loss issues
- 🐛 Unreliable audio playback
- 🐛 Confusing and unintuitive UI changes

**Reported bugs**

- Cards disappearing from decks
- Inability to log in or sync across devices
- Formatting issues when copying/pasting text
- Inconsistent behavior when editing cards
- Frequent app crashes and freezes

**Requested features**

- Ability to edit/customize downloaded decks
- Option to review cards in creation order
- Customizable daily study limits
- Global search across all decks
- Markdown support and rich text formatting


### Flashcards by HS

[App page](https://appshunter.io/ios/app/flashcards-by-hs/id1182307237)

Create custom flashcards with images and sounds to aid learning. Supports multiple languages and offers flexible card and list formats. Organize your study sessions with adjustable question order and answer flipping.

**Highlights:** Image and sound integration, Speech synthesizer, Customizable card formats, Adjustable question order, Flip question and answer

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

**In-app purchases:** none


## Frequently asked questions

### Is AlgoApp free?

AlgoApp is free to download, with in-app purchases available.

### Is Flashcards by HS free?

Flashcards by HS is free to download, with no in-app purchases.

### Which has better reviews, AlgoApp or Flashcards by HS?

AlgoApp is rated higher. AlgoApp averages 4.7 out of 5 from 20K ratings, while Flashcards by HS averages 4.6 from 5 ratings.

### Do AlgoApp or Flashcards by HS have ads?

Flashcards by HS shows ads; AlgoApp does not.

### Which is updated more often, AlgoApp or Flashcards by HS?

AlgoApp ships an update every 4 days, and Flashcards by HS every 4 months. Most recently, AlgoApp was updated on November 6, 2026 and Flashcards by HS on November 2, 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.*