# FlashZen vs Avorio

The clearest difference is in-app purchases: FlashZen at none against Avorio's 7. FlashZen also leads on iOS requirement (15.1 vs 17.6). Avorio's advantage is ads (none vs shown). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Avorio sells 7 in-app purchases, starting at $3.99 per month. FlashZen asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for FlashZen against 5.0 for Avorio. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | FlashZen | Avorio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/flashzen-flashcards/id6760035270/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/avorio/id6768092389/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | **Ad-supported** | Freemium |
| Size | 29 MB | 187 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Baptiste Fehrenbach](https://appshunter.io/developer/1257553869) | [Cognifer Labs LLC](https://appshunter.io/developer/1896538273) |

## What reviewers say

### FlashZen

[App page](https://appshunter.io/ios/app/flashzen-flashcards/id6760035270)

This app helps you learn vocabulary and build memory through active recall and spaced repetition. It offers a clean interface, allows custom definitions, and generates practice sentences with corrections. It's designed for efficient, focused study.

**Highlights:** Spaced repetition system, 800+ high-frequency English words, Custom definitions and translations, Sentence generation with corrections, Clean flashcard interface, Import custom decks

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

**In-app purchases:** none


### Avorio

[App page](https://appshunter.io/ios/app/avorio/id6768092389)

This app uses an advanced spaced repetition algorithm to help you study more effectively and remember information longer. It offers AI-powered card creation, offline functionality, and various study formats like cloze deletions and image occlusion. Gamified elements encourage consistent study habits.

**Highlights:** Advanced FSRS-5 scheduling algorithm, AI-powered card creation from notes, Offline functionality, Cloze deletions, image occlusion, LaTeX, Anki import, Gamified learning with streaks and XP, Optional cloud sync

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Avorio Basic | $3.99 | per month |
| Avorio Pro | $8.99 | per month |
| Avorio Max | $19.99 | per month |
| Avorio Basic Yearly | $39.99 | per year |
| Avorio Pro (Yearly) | $89.99 | per year |
| Avorio Max (Yearly) | $199.99 | per year |
| Avorio AI: Top-up (1m) | $4.99 | one-time |


## Frequently asked questions

### Is FlashZen free?

FlashZen is free to download, with no in-app purchases.

### Is Avorio free?

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

### Which has better reviews, FlashZen or Avorio?

FlashZen and Avorio are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.

### Do FlashZen or Avorio have ads?

FlashZen shows ads; Avorio does not.

### Which is updated more often, FlashZen or Avorio?

FlashZen ships an update every 2 weeks, and Avorio every 2 weeks. Most recently, FlashZen was updated on October 19, 2026 and Avorio on October 9, 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.*