# Chemex App vs eVyoog

The clearest difference is update cadence: eVyoog at every 2 weeks against Chemex App's every 10 months. 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.

Chemex App ships an update every 10 months, eVyoog every 2 weeks. The most recent releases landed on October 20, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Chemex App | eVyoog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 weeks** |
| Size | 337 MB | 15 MB |
| Requires iOS | 13.0 | **12.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RV realtime visions GmbH](https://appshunter.io/developer/638184363) | [Vyoog Information Private Limited](https://appshunter.io/developer/1655425002) |

## What reviewers say

### Chemex App

[App page](https://appshunter.io/ios/app/chemex-app/id1467996356)

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

**In-app purchases:** none


### eVyoog

[App page](https://appshunter.io/ios/app/evyoog/id6444576399)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chemex App free?

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

### Is eVyoog free?

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

### Do Chemex App or eVyoog have ads?

Neither Chemex App nor eVyoog shows ads.

### Which is updated more often, Chemex App or eVyoog?

Chemex App ships an update every 10 months, and eVyoog every 2 weeks. Most recently, Chemex App was updated on October 20, 2026 and eVyoog on September 27, 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.*