# Sensor Function Check vs JettDB

The clearest difference is ads: JettDB at none against Sensor Function Check's shown. JettDB also leads on device support (3 vs 1). Sensor Function Check's advantage is iOS requirement (17.6 vs 26.5). On price 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.

## The numbers

| Metric | Sensor Function Check | JettDB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Size | 8 MB | 3 MB |
| Requires iOS | **17.6** | 26.5 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Yasushi Tauchi](https://appshunter.io/developer/1819284921) | [Gale Wolfenbarger](https://appshunter.io/developer/1893419175) |

## What reviewers say

### Sensor Function Check

[App page](https://appshunter.io/ios/app/sensor-function-check/id6775188668)

**In-app purchases:** none


### JettDB

[App page](https://appshunter.io/ios/app/jettdb/id6789318029)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sensor Function Check free?

Sensor Function Check is free to download, with no in-app purchases.

### Is JettDB free?

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

### Do Sensor Function Check or JettDB have ads?

Sensor Function Check shows ads; JettDB does not.

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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.*