# ChemBioCalc vs MLS Prep Pro

The clearest difference is ads: MLS Prep Pro at none against ChemBioCalc's shown. ChemBioCalc's advantage is update cadence (every 4 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. ChemBioCalc sells 4 in-app purchases, starting at $1.99 per 7 days and MLS Prep Pro sells 6 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

ChemBioCalc ships an update every 4 days, MLS Prep Pro fortnightly. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ChemBioCalc | MLS Prep Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mls-prep-pro/id6789780471/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 69 MB | 60 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [mit Can ERM](https://appshunter.io/developer/1894513244) | [Walho Apps](https://appshunter.io/developer/6789780473) |

## What reviewers say

### ChemBioCalc

[App page](https://appshunter.io/ios/app/chembiocalc-lab-assistant/id6762520756)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $1.99 | per 7 days |
| Pro Monthly | $4.99 | per month |
| Pro Yearly | $17.99 | per year |
| Single Result | $0.99 | one-time |


### MLS Prep Pro

[App page](https://appshunter.io/ios/app/mls-prep-pro/id6789780471)

Prepare for your Medical Laboratory Scientist certification exam with a comprehensive study app. It offers a large question bank, adaptive practice, mock exams, and visual learning tools to help you master key topics and track your progress.

**Highlights:** 725+ ASCP-style questions, Detailed explanations, Morphology images, Adaptive practice, Timed mock exams, Spaced repetition flashcards, Progress tracking

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Core Monthly | $14.99 | per month |
| Premium Monthly | $24.99 | per month |
| Core Annual | $119.00 | per year |
| Core Annual | $119.00 | per year |
| Premium Annual | $189.00 | per year |
| Premium Annual | $189.00 | per year |


## Frequently asked questions

### Is ChemBioCalc free?

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

### Is MLS Prep Pro free?

MLS Prep Pro is free to download, with in-app purchases available.

### Do ChemBioCalc or MLS Prep Pro have ads?

ChemBioCalc shows ads; MLS Prep Pro does not.

### Which is updated more often, ChemBioCalc or MLS Prep Pro?

ChemBioCalc ships an update every 4 days, and MLS Prep Pro fortnightly. Most recently, ChemBioCalc was updated on October 10, 2026 and MLS Prep Pro on October 15, 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.*