# Cardfoq vs JustFlip

The clearest difference is update cadence: JustFlip at every 5 days against Cardfoq's every 2 months. JustFlip also leads on device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Cardfoq sells 10 one-off in-app purchases and JustFlip sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Cardfoq ships an update every 2 months, JustFlip every 5 days. The most recent releases landed on October 10, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Cardfoq | JustFlip |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 17 MB | 145 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Joshua Johannes Hoffmann](https://appshunter.io/developer/1859403935) | [DANIEL CECH](https://appshunter.io/developer/1896564059) |

## What reviewers say

### Cardfoq

[App page](https://appshunter.io/ios/app/cardfoq/id6757342579)

This app helps students memorize knowledge and learn effectively with customizable flashcards. Organize your study materials, track progress, and sync across devices. Share and export your study sets with friends and classmates.

**Highlights:** Create unlimited custom flashcards, Add images to cards, Organize stacks in folders, Track progress with statistics, Automatic iCloud synchronization, Share and export stacks, Dark mode

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Financial Mathematics | $0.49 | one-time |
| Geometry | $0.49 | one-time |
| Calculus | $0.49 | one-time |
| Cell Biology | $0.49 | one-time |
| Linear Algebra | $0.49 | one-time |
| Statistics | $0.49 | one-time |
| Ecology | $0.49 | one-time |
| Genetics | $0.49 | one-time |
| Human Biology | $0.49 | one-time |
| Evolution | $0.49 | one-time |


### JustFlip

[App page](https://appshunter.io/ios/app/justflip-flashcards/id6770141421)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JustFlip Pro Monthly | $1.99 | per month |
| JustFlip Pro Yearly | $5.99 | per year |
| JustFlip Pro Lifetime | $12.99 | one-time |


## Frequently asked questions

### Is Cardfoq free?

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

### Is JustFlip free?

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

### Do Cardfoq or JustFlip have ads?

Neither Cardfoq nor JustFlip shows ads.

### Which is updated more often, Cardfoq or JustFlip?

Cardfoq ships an update every 2 months, and JustFlip every 5 days. Most recently, Cardfoq was updated on October 10, 2026 and JustFlip on September 28, 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.*