# 水质多参数APP vs Fender Online Tools

水质多参数APP and Fender Online Tools are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

水质多参数APP ships an update every 7 months, Fender Online Tools every 6 months. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 水质多参数APP | Fender Online Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fender-online-tools/id1503298239/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 months** |
| Monetization | — | Free |
| Size | 29 MB | 71 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Xiamen Standards Scientific Instrument Co.,Ltd.](https://appshunter.io/developer/1194436536) | [Trelleborg AB](https://appshunter.io/developer/423282462) |

## What reviewers say

### 水质多参数APP

[App page](https://appshunter.io/ios/app/app/id1450483863)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fender Online Tools

[App page](https://appshunter.io/ios/app/fender-online-tools/id1503298239)

This app helps users select and specify fender systems for various applications. It offers tools for calculating berthing energy, generating specifications, and selecting appropriate fenders based on project requirements and industry standards.

**Highlights:** Fender selection tool, Berthing energy calculation, Fender Specification Generator, Bollard Specification Generator, Ship-to-Ship Fender System Selector, PIANC and British Standards compliance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 水质多参数APP free?

水质多参数APP is free to download, with no in-app purchases.

### Is Fender Online Tools free?

Fender Online Tools is free to download, with no in-app purchases.

### Do 水质多参数APP or Fender Online Tools have ads?

Neither 水质多参数APP nor Fender Online Tools shows ads.

### Which is updated more often, 水质多参数APP or Fender Online Tools?

水质多参数APP ships an update every 7 months, and Fender Online Tools every 6 months. Most recently, 水质多参数APP was updated on October 6, 2026 and Fender Online Tools on October 15, 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.*