# Stacked vs MemStacks

Stacked and MemStacks are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Stacked ships an update every 3 days, MemStacks every 2 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Stacked | MemStacks |
| --- | --- | --- |
| 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 3 days | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 11 MB | 19 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Stephanie Dugas](https://appshunter.io/developer/1808309497) | [Denızcan OZPINAR](https://appshunter.io/developer/1848817078) |

## What reviewers say

### 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 |


### MemStacks

[App page](https://appshunter.io/ios/app/memstacks/id6754551854)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the Developer | $0.99 | one-time |


## Frequently asked questions

### Is Stacked free?

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

### Is MemStacks free?

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

### Do Stacked or MemStacks have ads?

Neither Stacked nor MemStacks shows ads.

### Which is updated more often, Stacked or MemStacks?

Stacked ships an update every 3 days, and MemStacks every 2 days. Most recently, Stacked was updated on October 30, 2026 and MemStacks on October 28, 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.*