# ZenTest-Smart Water Tester — Smart Tester for pH/EC/TDS...

> Smart water tester companion app for professional measurement and data management. (iPhone/iPad app by Apera Instruments, LLC.)

- Source: https://appshunter.io/ios/app/zentest-smart-water-tester/id1410820467 (this page in markdown: same URL + `.md`)
- Developer: [Apera Instruments, LLC](https://appshunter.io/developer/1410820466)
- Category: Utilities, Business
- Price: Free
- Rating: 4.55/5 from 49 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 29 MB
- Languages: English, German, Japanese, Chinese, Spanish
- Released: 2018-08-06
- Data updated: 2026-08-08
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/zentest-smart-water-tester/id1410820467/reviews.md

## What is ZenTest?

This mobile application is designed for ZenTest enabled Smart Multi-parameter water testers (connect via bluetooth). With ZenTest, professional measurement and data management of pH, conductivity, TDS, salinity, resistivity, ORP (redox) & temperature become easier than ever.

Main Features:
* 4 types of measurement display modes (Simple/Dial/Graph/Table), helping you identify all the critical data related to your tests.
* Powerful cloud-based data management system, including measurement records, calibration data, notes taking, photo attaching, GPS location, and more.
* Instant data sharing at your finger tips.
* Smart operation reminders, making sure you perform the tests in the most professional way.
* Two-Way controlling -- even without a smartphone, you can still use the product as a conventional tester.
* Smart self-diagnosis, helping you troubleshoot common problems during measurement and calibration
* Alarm function notifies you of any values that exceed your preset range

## Key features

- Bluetooth connectivity to smart testers
- Multiple measurement display modes
- Cloud-based data management
- Measurement record keeping
- Note taking and photo attachment
- Instant data sharing
- Smart operation reminders

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/zentest-smart-water-tester/id1410820467/reviews.md

### 2/5 — Crasht ständig und verliert Verbindung

*2025-04-11, version 1.9.6.2*

Grundsätzlich ist es ja toll eine App zu haben, aber ehrlich: Die App crasht am kaufenden Band, verliert ständig die Verbindung zur Hardware. Der einzige Vorteil für mich, ist das unkomplizierte umschalten der Messwerte, man muss nicht durch alles durchklicken. Wenn die Abbrüche und Crashes nicht wären, durchaus brauchbar, aber generell überflüssig

### 3/5 — App zur Hardware

*2023-02-01, version 1.9.1*

Grundsätzlich funktionell und gut, wenn man die passende Hardware hat, aber Aufzeichnungen lassen sich nicht komplett speichern. Zusätzliche Angaben (wie Memo) werden nicht gespeichert. Zudem werden Messungen mehrfach gespeichert.

### 5/5 — Company Replaced PC-Z multiparameter tester

*2022-06-09*

Apera replaced our defective PC-Z multiparameter tester. The app now fully connects via bluetooth to the PC-Z multiparameter tester.

### 1/5 — First it looks good, then you realize how bad it is

*2022-05-10*

I would like to start with the bugs. I've created about 15 categories, then made around 100 tests and saved them in those categories. Today, guess what? All the categories are lost or missing. Not a single one of them was saved!!! It ruined my work!

Then, the usability. There is no way you could make all 5 tests at once and save one single file. Oh no, you need to make 5 different tests and save them separately.

After that, some options have not a even a single description to them. For example, the TDS compensation. You can have it at .4 or 1.0, giving you completely different results.

And finally, I hope there will be a feature like "Test all values" and show them on the same page.

### 4/5 — Promising

*2021-09-14*

I like it for the most part so far, but when I go to assign a measurement to an asset and I have to scroll to the bottom assets, I’m unable to select them because the scroll bar doesn’t go down far enough. So any time I measure those assets I have to go in and do it manually from the “Data” screen. Please fix this. Other than that it’s extremely useful and has already saved me tons of time walking trays with liquid across the room, measuring, writing down measurements, going back and doing it over and over.

### 1/5 — Max Password Length of 12

*2021-05-29*

Any app that requires a login AND limits password length or complexity is an automatic 1-star. Sorry.

### 5/5 — Test meter

*2021-01-09*

Excellent tool that could be better. 
The readings should be viewable as a graph, each parameter assigned a different color.
Have it so the main data is “moved” to a category and then not on the main screen.  As it is now all the data stays there and is also in a category.  If you clear the main screen your category data gets deleted.

## Frequently asked questions about ZenTest

### What devices does ZenTest support?

ZenTest is available for iPhone, iPad, and iPod. It connects to ZenTest enabled Smart Multi-parameter water testers via Bluetooth.

### How does ZenTest help manage water quality data?

ZenTest offers a powerful cloud-based data management system. You can store measurement records, calibration data, take notes, attach photos, and log GPS locations for each test.

### Can I use ZenTest without a smartphone?

Yes, the ZenTest enabled water testers can still be used as conventional testers even without a smartphone connection. The app enhances functionality with data management and advanced features.

### What types of water parameters can ZenTest measure?

ZenTest facilitates professional measurement of pH, conductivity (EC), total dissolved solids (TDS), salinity, resistivity, ORP (redox), and temperature when connected to a compatible ZenTest device.

### Does ZenTest have an alarm function?

Yes, ZenTest includes an alarm function. It will notify you if any measured values exceed your preset range, helping you monitor water quality effectively.

### How often is ZenTest updated?

The latest version of ZenTest is 1.9.8, last updated on June 30, 2025. Updates ensure the app remains functional and potentially adds new features or improvements.

### What is the user sentiment for ZenTest?

ZenTest has a strong user rating of 4.5 stars from 47 ratings, indicating generally positive user sentiment regarding its functionality and ease of use.

### Is ZenTest suitable for younger users?

ZenTest has an age rating of 4+, making it accessible for a wide range of users. However, its technical nature and connection to specialized equipment suggest it's primarily intended for users with a need for water testing.

## Version history (last 5 releases)

### 1.9.10 — 2026-06-30

Fixed the display problem in the menu.

### 1.9.9 — 2026-05-20

• Now the App allows for data management without connecting your device.
• Quick access to add a new asset when saving data.
• Updated the logic in data category.
• GPS location of your saved data is now uneditable.
• Fixed the bug in auto. timing data logging

### 1.9.8 — 2025-06-30

French has been added to the language options.

### 1.9.6.2 — 2024-05-15

Fixed bugs

### 1.9.6 — 2024-03-30

Updated the information section.

## Related topics

[apera](https://appshunter.io/ios/topics/apera) · [aqmeter](https://appshunter.io/ios/topics/aqmeter) · [water testing](https://appshunter.io/ios/topics/water-testing) · [testo smart app](https://appshunter.io/ios/topics/testo-smart-app)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-08.*