# CellAtlas vs Bacteria 3D

The clearest difference is rating: Bacteria 3D at 4.6 against CellAtlas's 3.2. Bacteria 3D also leads on update cadence (weekly vs every 2 months) and iOS requirement (8.0 vs 15.0). CellAtlas's advantage is review sentiment (84% vs 70%). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bacteria 3D holds the better App Store score, 4.6 against 3.2. Both are backed by a comparable volume of ratings — 22 and 58 respectively. Written reviews complicate that: 84% of CellAtlas's written reviews are positive against 70% of Bacteria 3D's, so the app with the better star average is not the one people write more warmly about.

CellAtlas ships an update every 2 months, Bacteria 3D weekly. Both last shipped on October 15, 2026.

## The numbers

| Metric | CellAtlas | Bacteria 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (22 ratings)](https://appshunter.io/ios/app/cellatlas/id413226907/reviews) | **[4.6 (58 ratings)](https://appshunter.io/ios/app/bacteria-3d/id1168927717/reviews)** |
| Number of ratings | 22 | **58** |
| Positive reviews | **84.3% of reviews** | 70.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | Free |
| Size | 106 MB | 115 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CellaVision](https://appshunter.io/developer/1185675201) | [MOZAIK Education Ltd.](https://appshunter.io/developer/1064850236) |

## 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


### Bacteria 3D

[App page](https://appshunter.io/ios/app/bacteria-3d/id1168927717)

Explore biology through interactive 3D animations of bacteria in various shapes. This app offers a dynamic learning experience with pre-set views, narration, quizzes, and VR mode. It's designed for students but engaging for all ages.

**Highlights:** Interactive 3D bacteria models, Rotatable and zoomable scenes, Predefined navigation views, Walk mode for exploration, Narrations and animations, Animated quizzes, VR mode support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CellAtlas free?

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

### Is Bacteria 3D free?

Bacteria 3D is free to download, with no in-app purchases.

### Which has better reviews, CellAtlas or Bacteria 3D?

Bacteria 3D is rated higher. CellAtlas averages 3.2 out of 5 from 22 ratings, while Bacteria 3D averages 4.6 from 58 ratings.

### Do CellAtlas or Bacteria 3D have ads?

Neither CellAtlas nor Bacteria 3D shows ads.

### Which is updated more often, CellAtlas or Bacteria 3D?

CellAtlas ships an update every 2 months, and Bacteria 3D weekly. Most recently, CellAtlas was updated on October 15, 2026 and Bacteria 3D 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.*