# C Interview Questions vs Quiz on Programming

The clearest difference is in-app purchases: Quiz on Programming at none against C Interview Questions's 1. Quiz on Programming also leads on ads (none vs shown) and update cadence (every 19 months vs every 51 months). On price and device support there is nothing between them.

Both are free to download. C Interview Questions sells 1 one-off in-app purchase. Quiz on Programming asks for nothing beyond the download.

C Interview Questions ships an update every 51 months, Quiz on Programming every 19 months. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | C Interview Questions | Quiz on Programming |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 51 months | **Every 19 months** |
| Size | 16 MB | 10 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RAVINDHIRAN SUMITHRA](https://appshunter.io/developer/1571016391) | [Theo Scott](https://appshunter.io/developer/691156625) |

## What reviewers say

### C Interview Questions

[App page](https://appshunter.io/ios/app/c-interview-questions/id1070985063)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| C Interview Questions Adfree | $3.99 | one-time |


### Quiz on Programming

[App page](https://appshunter.io/ios/app/quiz-on-programming/id1193573814)

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

**In-app purchases:** none


## Frequently asked questions

### Is C Interview Questions free?

C Interview Questions is free to download, with in-app purchases available.

### Is Quiz on Programming free?

Quiz on Programming is free to download, with no in-app purchases.

### Do C Interview Questions or Quiz on Programming have ads?

C Interview Questions shows ads; Quiz on Programming does not.

### Which is updated more often, C Interview Questions or Quiz on Programming?

C Interview Questions ships an update every 51 months, and Quiz on Programming every 19 months. Most recently, C Interview Questions was updated on October 12, 2026 and Quiz on Programming on October 4, 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.*