# PolyChain vs ASCP MLS Exam Prep 2026

The clearest difference is in-app purchases: PolyChain at none against ASCP MLS Exam Prep 2026's 5. PolyChain also leads on iOS requirement (12.4 vs 15.1). ASCP MLS Exam Prep 2026's advantage is device support. On price there is nothing between them.

Both are free to download. ASCP MLS Exam Prep 2026 sells 5 in-app purchases, starting at $10.99 per 7 days. PolyChain asks for nothing beyond the download.

## The numbers

| Metric | PolyChain | ASCP MLS Exam Prep 2026 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ascp-mls-exam-prep-2026/id6766115001/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 4 months |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 50 MB |
| Requires iOS | **12.4** | 15.1 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [The Hong Kong Polytechnic University](https://appshunter.io/developer/442903588) | [Yan Marinich](https://appshunter.io/developer/1875312295) |

## What reviewers say

### PolyChain

[App page](https://appshunter.io/ios/app/polychain/id6444431184)

**In-app purchases:** none


### ASCP MLS Exam Prep 2026

[App page](https://appshunter.io/ios/app/ascp-mls-exam-prep-2026/id6766115001)

Prepare for the Medical Laboratory Scientist (MLS) exam with realistic practice questions and targeted review. Strengthen key concepts and improve exam-focused reasoning with detailed explanations and flexible study modes, including offline access.

**Highlights:** Exam-style practice questions, Detailed explanations/rationales, Timed practice sessions, Topic-based review, Progress tracking, Offline access

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Premium Full Access | $10.99 | per 7 days |
| 1 Month Premium Full Access | $27.99 | per month |
| 1 Month Premium Full Access | $27.99 | per month |
| 3 Month Premium Full Access | $49.99 | per 3 months |
| 3 Month Premium Full Access | $49.99 | per 3 months |


## Frequently asked questions

### Is PolyChain free?

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

### Is ASCP MLS Exam Prep 2026 free?

ASCP MLS Exam Prep 2026 is free to download, with in-app purchases available.

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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.*