# Sandflash vs FlashZen

The clearest difference is ads: Sandflash at none against FlashZen's shown. Sandflash also leads on monetization model (free vs ad-supported). FlashZen's advantage is update cadence (every 2 weeks vs monthly). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Sandflash against 5.0 for FlashZen. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Sandflash ships an update monthly, FlashZen every 2 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sandflash | FlashZen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/sandflash/id6739746731/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/flashzen-flashcards/id6760035270/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 2 MB | 29 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Joshua Smith](https://appshunter.io/developer/1786835996) | [Baptiste Fehrenbach](https://appshunter.io/developer/1257553869) |

## What reviewers say

### Sandflash

[App page](https://appshunter.io/ios/app/sandflash/id6739746731)

This app provides a straightforward digital flashcard experience for studying and memorization. It aims to replicate the simplicity of traditional flashcards for educational purposes.

**Highlights:** Digital flashcard creation, Study and memorization tool, Simple user interface, Free to use

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Sandflash free?

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

### Is FlashZen free?

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

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

Sandflash and FlashZen are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do Sandflash or FlashZen have ads?

FlashZen shows ads; Sandflash does not.

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

Sandflash ships an update monthly, and FlashZen every 2 weeks. Most recently, Sandflash was updated on November 4, 2026 and FlashZen on October 31, 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.*