# Sentron vs e

The clearest difference is iOS requirement: e at 13.0 against Sentron's 15.0. 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.

## The numbers

| Metric | Sentron | e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/sentron/id1623135557/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Monetization | Free | — |
| Size | 94 MB | 3 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sentron Europe B.V.](https://appshunter.io/developer/1623135559) | [Rockwool International A/S](https://appshunter.io/developer/560117967) |

## What reviewers say

### Sentron

[App page](https://appshunter.io/ios/app/sentron/id1623135557)

Transform your mobile device into a sophisticated pH meter. Connect wirelessly to specialized probes for accurate measurements in various applications. The app guides you through calibration, data logging, and export.

**Highlights:** Wireless pH/EC measurement, Bluetooth probe connectivity, Step-by-step calibration, Data logging and graphing, GPS data mapping, Automatic temperature compensation

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-gro/id6476660626)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sentron free?

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

### Is e free?

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

### Do Sentron or e have ads?

Neither Sentron nor e 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.*