# Know It vs Flashy

The clearest difference is device support: Know It at 3 against Flashy's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Know It sells 2 in-app purchases, starting at $3.99 per month and Flashy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Know It ships an update every 2 months, Flashy monthly. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Know It | Flashy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flashy-simple-flashcards/id6788429683/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 50 MB | 93 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [NOLAN OLIVIER DANIEL ESSERTAIZE](https://appshunter.io/developer/1876489727) | [Argon Labs LLC](https://appshunter.io/developer/1886786496) |

## What reviewers say

### Know It

[App page](https://appshunter.io/ios/app/know-it-feynman/id6759038082)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Abonnement étudiant | $3.99 | per month |
| Abonnement Illimité | $12.99 | per month |


### Flashy

[App page](https://appshunter.io/ios/app/flashy-simple-flashcards/id6788429683)

This app uses a modern spaced repetition algorithm to help you memorize information efficiently. It offers a free tier with limited cards and a one-time purchase for unlimited access, with no subscriptions or ads. Study vocabulary, exam facts, and more with offline functionality and image support.

**Highlights:** FSRS spaced repetition algorithm, One-time purchase for unlimited cards, Offline functionality, Image support on cards, Import Anki and CSV decks, Tagging for organization, Four-grade review system

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flashy Unlimited | $4.99 | one-time |


## Frequently asked questions

### Is Know It free?

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

### Is Flashy free?

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

### Do Know It or Flashy have ads?

Neither Know It nor Flashy shows ads.

### Which is updated more often, Know It or Flashy?

Know It ships an update every 2 months, and Flashy monthly. Most recently, Know It was updated on October 15, 2026 and Flashy on October 6, 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.*