# C Programming vs AI, ML & Data Cert Exam Prep

The clearest difference is update cadence: AI, ML & Data Cert Exam Prep at daily against C Programming's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. C Programming sells 6 in-app purchases, starting at $7.99 per 7 days and AI, ML & Data Cert Exam Prep sells 4 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

C Programming ships an update weekly, AI, ML & Data Cert Exam Prep daily. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | C Programming | AI, ML & Data Cert Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Size | 26 MB | 16 MB |
| Requires iOS | **17.0** | 18 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) | [Sunny Dasari](https://appshunter.io/developer/6798379765) |

## What reviewers say

### C Programming

[App page](https://appshunter.io/ios/app/c-programming-quiz/id6755839135)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week | $7.99 | per 7 days |
| 1 Month | $19.99 | per month |
| 1 Year | $29.99 | per year |
| 1500 | $1.99 | one-time |
| 3500 | $2.99 | one-time |
| 9000 | $4.99 | one-time |


### AI, ML & Data Cert Exam Prep

[App page](https://appshunter.io/ios/app/ai-ml-and-data-cert-exam-prep/id6799519419)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI, ML & Data Cert Monthly | $19.99 | per month |
| AI, ML & Data Cert 3 Months | $39.99 | per 3 months |
| AI, ML & Data Cert 6 Months | $39.99 | per 6 months |
| AI, ML & Data Cert Yearly | $99.99 | per year |


## Frequently asked questions

### Is C Programming free?

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

### Is AI, ML & Data Cert Exam Prep free?

AI, ML & Data Cert Exam Prep is free to download, with in-app purchases available.

### Do C Programming or AI, ML & Data Cert Exam Prep have ads?

Neither C Programming nor AI, ML & Data Cert Exam Prep shows ads.

### Which is updated more often, C Programming or AI, ML & Data Cert Exam Prep?

C Programming ships an update weekly, and AI, ML & Data Cert Exam Prep daily. Most recently, C Programming was updated on October 15, 2026 and AI, ML & Data Cert Exam Prep on October 10, 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.*