# Stacks vs Flash Cards

The clearest difference is review sentiment: Stacks at 100% against Flash Cards's 0%. Stacks also leads on iOS requirement (16.4 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Stacks sells 2 in-app purchases, starting at $9.99 per 3 months and Flash Cards sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Stacks ships an update every 3 months, Flash Cards every 2 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Stacks | Flash Cards |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/flash-cards-study-and-learn/id6747951708/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Freemium | Freemium |
| Size | 77 MB | 18 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lewis Hoy](https://appshunter.io/developer/1812196615) | [Jeff Cedilla](https://appshunter.io/developer/944615129) |

## What reviewers say

### Stacks

[App page](https://appshunter.io/ios/app/stacks-language-flashcards/id6745429203)

Create flashcards from your own experiences and conversations. This app uses spaced repetition to help you remember vocabulary longer with less study. It supports over 100 languages and offers offline study capabilities.

**Highlights:** Create cards from stories and conversations, Spaced repetition system (FSRS), Offline study mode, Automatic translations, Supports over 100 languages, Romanization for select scripts, Clean, minimal interface

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stacks+ Quarterly | $9.99 | per 3 months |
| Stacks+ Yearly | $27.99 | per year |


### Flash Cards

[App page](https://appshunter.io/ios/app/flash-cards-study-and-learn/id6747951708)

Master any subject with science-based flashcards that adapt to your learning style. Utilize spaced repetition, the Leitner system, and confidence-based ratings to accelerate memorization and track your progress with detailed statistics. Create rich cards with text and images, and share decks with friends.

**Highlights:** Spaced Repetition, Leitner System, Confidence-Based Learning, Progress Tracking, Rich Card Creation, Deck Sharing, Offline Study

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $6.99 | per year |
| Lifetime | $9.99 | one-time |
| Lifetime Discount | $9.99 | one-time |


## Frequently asked questions

### Is Stacks free?

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

### Is Flash Cards free?

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

### Do Stacks or Flash Cards have ads?

Neither Stacks nor Flash Cards shows ads.

### Which is updated more often, Stacks or Flash Cards?

Stacks ships an update every 3 months, and Flash Cards every 2 months. Most recently, Stacks was updated on October 28, 2026 and Flash Cards on October 24, 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.*