# Learn Czech Lang vs Stacked

The clearest difference is update cadence: Stacked at every 3 days against Learn Czech Lang's every 16 months. Learn Czech Lang's advantage is iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Learn Czech Lang sells 1 one-off in-app purchase and Stacked sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Learn Czech Lang ships an update every 16 months, Stacked every 3 days. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Learn Czech Lang | Stacked |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/stacked-ai-flashcard-maker/id6744585549/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 35 MB | 11 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ghumman Tech LLC](https://appshunter.io/developer/1671347750) | [Stephanie Dugas](https://appshunter.io/developer/1808309497) |

## What reviewers say

### Learn Czech Lang

[App page](https://appshunter.io/ios/app/learn-czech-lang/id6448895007)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $9.99 | one-time |


### Stacked

[App page](https://appshunter.io/ios/app/stacked-ai-flashcard-maker/id6744585549)

Transform notes, photos, and PDFs into AI-powered flashcards instantly. This app uses spaced repetition to optimize your study sessions, helping you retain information more effectively for exams and skill mastery.

**Highlights:** AI flashcard generation from text, photos, and PDFs, Spaced repetition for optimized review, Organize decks by subject or topic, Easy renaming and deletion of cards, Clean and simple user interface

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stacked Pro Monthly | $2.99 | per month |
| Stacked Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is Learn Czech Lang free?

Learn Czech Lang is free to download, with in-app purchases available.

### Is Stacked free?

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

### Do Learn Czech Lang or Stacked have ads?

Neither Learn Czech Lang nor Stacked shows ads.

### Which is updated more often, Learn Czech Lang or Stacked?

Learn Czech Lang ships an update every 16 months, and Stacked every 3 days. Most recently, Learn Czech Lang was updated on October 10, 2026 and Stacked on October 7, 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.*