# Sci vs IUPAC 2019 Paris

The clearest difference is iOS requirement: IUPAC 2019 Paris at 9.0 against Sci's 13.0. On price, update cadence, 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.

Sci ships an update every 6 weeks, IUPAC 2019 Paris monthly. Both last shipped on October 26, 2026.

## The numbers

| Metric | Sci | IUPAC 2019 Paris |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 86 MB | 56 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [山东远大朗威教育科技股份有限公司](https://appshunter.io/developer/1197726190) | [key4events](https://appshunter.io/developer/490630030) |

## What reviewers say

### Sci

[App page](https://appshunter.io/ios/app/sci-lab-primary/id1387072836)

**In-app purchases:** none


### IUPAC 2019 Paris

[App page](https://appshunter.io/ios/app/iupac-2019-paris/id1457656974)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sci free?

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

### Is IUPAC 2019 Paris free?

IUPAC 2019 Paris is free to download, with no in-app purchases.

### Do Sci or IUPAC 2019 Paris have ads?

Neither Sci nor IUPAC 2019 Paris shows ads.

### Which is updated more often, Sci or IUPAC 2019 Paris?

Sci ships an update every 6 weeks, and IUPAC 2019 Paris monthly. Most recently, Sci was updated on October 26, 2026 and IUPAC 2019 Paris on October 26, 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.*