# cardFlash vs Zeroth

The clearest difference is update cadence: Zeroth at daily against cardFlash's every 3 weeks. cardFlash's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

cardFlash ships an update every 3 weeks, Zeroth daily. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | cardFlash | Zeroth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (25 ratings)](https://appshunter.io/ios/app/cardflash-flashcard-app/id6443405970/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 94.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Free | — |
| Size | 35 MB | 31 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Yu](https://appshunter.io/developer/1645221554) | [Mukhammadnozim Islamov](https://appshunter.io/developer/1847112859) |

## What reviewers say

### cardFlash

[App page](https://appshunter.io/ios/app/cardflash-flashcard-app/id6443405970)

This free flashcard application offers two study modes: Flashcard Mode for traditional review and Adaptive Mode, which uses a smart algorithm to ensure mastery of terms. It allows for easy creation and import of study sets, including from Quizlet, and is completely ad-free.

**Highlights:** Adaptive Learn Mode, Flashcard Mode, Quizlet Import, 100% Ad Free, QR Code Set Sharing, Folders

**Features:** macOS Compatibility

**In-app purchases:** none


### Zeroth

[App page](https://appshunter.io/ios/app/zeroth/id6754209958)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is cardFlash free?

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

### Is Zeroth free?

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

### Do cardFlash or Zeroth have ads?

Neither cardFlash nor Zeroth shows ads.

### Which is updated more often, cardFlash or Zeroth?

cardFlash ships an update every 3 weeks, and Zeroth daily. Most recently, cardFlash was updated on October 16, 2026 and Zeroth 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.*