# Certified Marketer Exam Prep vs Learn Python Data Science

The clearest difference is price: Certified Marketer Exam Prep at Free against Learn Python Data Science's $4.99. Learn Python Data Science's advantage is in-app purchases (none vs 9). On update cadence, ads, device support and iOS requirement there is nothing between them.

Certified Marketer Exam Prep is free to download; Learn Python Data Science costs $4.99 up front. Certified Marketer Exam Prep sells 9 in-app purchases, starting at $8.99 per 7 days. Learn Python Data Science asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Certified Marketer Exam Prep | Learn Python Data Science |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Size | 50 MB | 18 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Exam Prep OU](https://appshunter.io/developer/1689642184) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Certified Marketer Exam Prep

[App page](https://appshunter.io/ios/app/certified-marketer-exam-prep/id6505127593)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AMA PCM Weekly Full Access | $8.99 | per 7 days |
| AMA PCM Monthly Full Access | $24.99 | per month |
| PCM Monthly Full Access | $34.99 | per month |
| PCM Quarterly Full Access | $55.99 | per 3 months |
| PCM Quarterly Full Access | $59.99 | per 3 months |
| PCM Semiannual Full Access | $75.99 | per 6 months |
| PCM Semiannual Full Access | $79.99 | per 6 months |
| PCM Annual Full Access | $109.99 | per year |
| PCM Annual Full Access | $119.99 | per year |


### Learn Python Data Science

[App page](https://appshunter.io/ios/app/learn-python-data-science/id6751640815)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Certified Marketer Exam Prep free?

Certified Marketer Exam Prep is free to download, with in-app purchases available.

### Is Learn Python Data Science free?

Learn Python Data Science costs $4.99, with no in-app purchases.

### Do Certified Marketer Exam Prep or Learn Python Data Science have ads?

Neither Certified Marketer Exam Prep nor Learn Python Data Science shows ads.

### Which is updated more often, Certified Marketer Exam Prep or Learn Python Data Science?

Certified Marketer Exam Prep ships an update every 5 months, and Learn Python Data Science every 5 months. Most recently, Certified Marketer Exam Prep was updated on September 24, 2026 and Learn Python Data Science on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*