# Saybolt Calculator vs ETS Host

The clearest difference is iOS requirement: Saybolt Calculator at 9.3 against ETS Host's 15.1. 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.

## The numbers

| Metric | Saybolt Calculator | ETS Host |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 2 MB | 44 MB |
| Requires iOS | **9.3** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Saybolt International B.V.](https://appshunter.io/developer/493919167) | [Event Tech Stack](https://appshunter.io/developer/1885497767) |

## What reviewers say

### Saybolt Calculator

[App page](https://appshunter.io/ios/app/saybolt-calculator/id1407264308)

**In-app purchases:** none


### ETS Host

[App page](https://appshunter.io/ios/app/ets-host/id6761293608)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Saybolt Calculator free?

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

### Is ETS Host free?

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

### Do Saybolt Calculator or ETS Host have ads?

Neither Saybolt Calculator nor ETS Host shows ads.

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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.*