# CloudLabs Ethylene Synthesis vs ViviCell

The clearest difference is update cadence: ViviCell at every 2 months against CloudLabs Ethylene Synthesis's every 28 months. CloudLabs Ethylene Synthesis's advantage is iOS requirement (9.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CloudLabs Ethylene Synthesis ships an update every 28 months, ViviCell every 2 months. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CloudLabs Ethylene Synthesis | ViviCell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vivicell-hematology-study/id6782113774/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 83 MB | 55 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Jiovany Orozco](https://appshunter.io/developer/1114670847) | [Alexan Berberian](https://appshunter.io/developer/6782113776) |

## What reviewers say

### CloudLabs Ethylene Synthesis

[App page](https://appshunter.io/ios/app/cloudlabs-ethylene-synthesis/id1596480143)

**Features:** macOS Compatibility

**In-app purchases:** none


### ViviCell

[App page](https://appshunter.io/ios/app/vivicell-hematology-study/id6782113774)

Master hematology with structured lessons, flashcards, quizzes, and real microscopy practice. This offline app offers guided learning, spaced repetition, and detailed visual atlases for students and professionals. Track progress and identify weak areas for effective study.

**Highlights:** Structured hematology modules, Spaced-repetition flashcards, Quiz questions with explanations, Clinical case studies, Real microscopy image atlas, Cell-identification practice, Progress tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is CloudLabs Ethylene Synthesis free?

CloudLabs Ethylene Synthesis is free to download, with no in-app purchases.

### Is ViviCell free?

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

### Do CloudLabs Ethylene Synthesis or ViviCell have ads?

Neither CloudLabs Ethylene Synthesis nor ViviCell shows ads.

### Which is updated more often, CloudLabs Ethylene Synthesis or ViviCell?

CloudLabs Ethylene Synthesis ships an update every 28 months, and ViviCell every 2 months. Most recently, CloudLabs Ethylene Synthesis was updated on November 7, 2026 and ViviCell on October 31, 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.*