# Pluto.AI vs USMLE Step 2 CK Exam Prep 2025

Pluto.AI and USMLE Step 2 CK Exam Prep 2025 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Pluto.AI sells 1 in-app purchase, starting at $2.99 per month and USMLE Step 2 CK Exam Prep 2025 sells 9 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Pluto.AI | USMLE Step 2 CK Exam Prep 2025 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 8 MB | 40 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Cem Ylmaz](https://appshunter.io/developer/1750696266) | [Exam Prep OU](https://appshunter.io/developer/1689642184) |

## What reviewers say

### Pluto.AI

[App page](https://appshunter.io/ios/app/plutoai/id6504052685)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Subscription | $2.99 | per month |


### USMLE Step 2 CK Exam Prep 2025

[App page](https://appshunter.io/ios/app/usmle-step-2-ck-exam-prep-2025/id6744525877)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| USMLE 2 Weekly Full Access | $8.99 | per 7 days |
| USMLE 2 Monthly Full Access | $24.99 | per month |
| USMLE 2 Monthly Full Access | $34.99 | per month |
| USMLE 2 Quarterly Full Access | $55.99 | per 3 months |
| USMLE 2 Quarterly Full Access | $59.99 | per 3 months |
| USMLE 2 Semiannual Full Access | $75.99 | per 6 months |
| USMLE 2 Semiannual Full Access | $79.99 | per 6 months |
| USMLE 2 Annual Full Access | $109.99 | per year |
| USMLE 2 Annual Full Access | $119.99 | per year |


## Frequently asked questions

### Is Pluto.AI free?

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

### Is USMLE Step 2 CK Exam Prep 2025 free?

USMLE Step 2 CK Exam Prep 2025 is free to download, with in-app purchases available.

### Do Pluto.AI or USMLE Step 2 CK Exam Prep 2025 have ads?

Neither Pluto.AI nor USMLE Step 2 CK Exam Prep 2025 shows ads.

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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.*