# FlashStacks vs FlipWordy

The clearest difference is ads: FlashStacks at none against FlipWordy's shown. FlipWordy's advantage is device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. FlashStacks sells 3 in-app purchases, starting at $4.99 per month and FlipWordy sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

FlashStacks ships an update weekly, FlipWordy every 5 days. The most recent releases landed on October 12, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | FlashStacks | FlipWordy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (8 ratings)](https://appshunter.io/ios/app/flashstacks-flashcard-study/id6762071988/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 10 MB | 32 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Bailey Skewes](https://appshunter.io/developer/1892771018) | [MERVE PEKYUREK](https://appshunter.io/developer/1896522389) |

## What reviewers say

### FlashStacks

[App page](https://appshunter.io/ios/app/flashstacks-flashcard-study/id6762071988)

Transform study materials into interactive Home Screen widgets. AI generates flashcards from PDFs, and spaced repetition optimizes learning. Visualize concepts with image occlusion and track progress with detailed stats.

**Highlights:** Home and Lock Screen widgets, AI-powered PDF to flashcard generation, Spaced repetition learning, Image occlusion cards, Progress tracking and stats, Customizable widget themes

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlashStacks Premium — Monthly | $4.99 | per month |
| Premium Special Offer | $24.99 | per year |
| FlashStacks Premium — Annual | $39.99 | per year |


### FlipWordy

[App page](https://appshunter.io/ios/app/flipwordy/id6767936033)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Annual | $29.99 | per year |


## Frequently asked questions

### Is FlashStacks free?

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

### Is FlipWordy free?

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

### Do FlashStacks or FlipWordy have ads?

FlipWordy shows ads; FlashStacks does not.

### Which is updated more often, FlashStacks or FlipWordy?

FlashStacks ships an update weekly, and FlipWordy every 5 days. Most recently, FlashStacks was updated on October 12, 2026 and FlipWordy on October 17, 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.*