# CellAtlas vs ASCP MLS Exam Prep

The clearest difference is rating: ASCP MLS Exam Prep at 4.3 against CellAtlas's 3.2. CellAtlas's advantage is in-app purchases (none vs 6) and ratings volume (22 vs 3). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. ASCP MLS Exam Prep sells 6 one-off in-app purchases. CellAtlas asks for nothing beyond the download.

ASCP MLS Exam Prep holds the better App Store score, 4.3 against 3.2. That said, the two scores are not equally well evidenced: CellAtlas has 22 ratings behind it against 3, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CellAtlas | ASCP MLS Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (22 ratings)](https://appshunter.io/ios/app/cellatlas/id413226907/reviews) | **[4.3 (3 ratings)](https://appshunter.io/ios/app/ascp-mls-exam-prep/id6787626449/reviews)** |
| Number of ratings | **22** | 3 |
| Positive reviews | 84.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 106 MB | 17 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CellaVision](https://appshunter.io/developer/1185675201) | [xNeat.com](https://appshunter.io/developer/327498295) |

## What reviewers say

### CellAtlas

[App page](https://appshunter.io/ios/app/cellatlas/id413226907)

Explore blood cell morphology with expert-written lectures and a vast image database. Test your knowledge with an engaging quiz game designed for efficient learning.

**Highlights:** Blood cell morphology guide, Expert-written mini lectures, Extensive cell image database, CellQuiz game, Knowledge testing

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great for learning morphology
- 👍 Helpful study tool
- 👍 Fun quiz format
- 👍 Easy to navigate
- 👍 Good for review

**What reviewers complain about**

- ⏰ Ridiculous timer
- ⏰ Too little time
- ⏰ Timer causes mistakes
- ⏰ Timer prevents practice
- 🐛 Quiz is broken/rigged

**Reported bugs**

- Timer is too short
- Quiz moves too slowly after correct answer
- Duplicate images that only one counts
- App not opening on some devices
- Missing WBCs

**Requested features**

- Remove timer option
- Untimed mode
- More time for quizzes
- Quizzes for specific cells/sections
- More images/examples


### ASCP MLS Exam Prep

[App page](https://appshunter.io/ios/app/ascp-mls-exam-prep/id6787626449)

Prepare for medical laboratory certification exams with realistic practice questions and adaptive study plans. This guide helps you master clinical laboratory topics through targeted review and mock exam simulations, ensuring you're ready for your certification.

**Highlights:** Realistic practice questions, Mock exam simulation, Smart study guide plan, Learn from mistakes, Visual learning & notes, Topic-based review, Offline mode

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Medical Technologist Prep | $4.99 | one-time |
| Medical Lab Scientist Exam | $9.99 | one-time |
| Clinical Lab Scientist CLS | $14.99 | one-time |
| Medical Lab Technician MLT | $19.99 | one-time |
| Laboratory Science Review | $24.99 | one-time |
| Med Lab Science MLS MLT | $29.99 | one-time |


## Frequently asked questions

### Is CellAtlas free?

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

### Is ASCP MLS Exam Prep free?

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

### Which has better reviews, CellAtlas or ASCP MLS Exam Prep?

ASCP MLS Exam Prep is rated higher. CellAtlas averages 3.2 out of 5 from 22 ratings, while ASCP MLS Exam Prep averages 4.3 from 3 ratings.

### Do CellAtlas or ASCP MLS Exam Prep have ads?

Neither CellAtlas nor ASCP MLS Exam Prep shows ads.

### Which is updated more often, CellAtlas or ASCP MLS Exam Prep?

CellAtlas ships an update every 2 months, and ASCP MLS Exam Prep every 2 months. Most recently, CellAtlas was updated on October 23, 2026 and ASCP MLS Exam Prep on October 25, 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.*