# CRock vs QuestionCard

The clearest difference is update cadence: QuestionCard at every 3 days against CRock's every 3 months. 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.

CRock ships an update every 3 months, QuestionCard every 3 days. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | CRock | QuestionCard |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Size | 187 MB | 4 MB |
| Requires iOS | **17.6** | 18.2 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [hyunheum na](https://appshunter.io/developer/1809310371) | [Eun Kwan Sung](https://appshunter.io/developer/1810189610) |

## What reviewers say

### CRock

[App page](https://appshunter.io/ios/app/crock/id6749784650)

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

**In-app purchases:** none


### QuestionCard

[App page](https://appshunter.io/ios/app/questioncard/id6760129731)

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

**In-app purchases:** none


## Frequently asked questions

### Is CRock free?

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

### Is QuestionCard free?

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

### Do CRock or QuestionCard have ads?

Neither CRock nor QuestionCard shows ads.

### Which is updated more often, CRock or QuestionCard?

CRock ships an update every 3 months, and QuestionCard every 3 days. Most recently, CRock was updated on October 12, 2026 and QuestionCard on October 15, 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.*