Wasservalve vs QFE Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Wasservalve
This smart water valve system monitors water usage, detects leaks, and automatically shuts off the supply to prevent damage. Receive instant notifications on your smartphone when issues are detected.
- Ultrasonic water measurement
- Leak detection
- Pipe burst detection
- Automatic water shut-off
- Remote smartphone notifications
- Water usage monitoring
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The Wasservalve is a smart water valve that can be deployed at residents, schools, industrial and commercial enterprises and property management units. This application works in tandem with Wasservalve product based on an ultrasonic water measurement technique that provides users a new way to monitor water usage, and detect water leakage and pipe burst. When water leakage or pipe burt is detected, the valve is instantly shut off the water supply to mitigate a costly water damage. Upon detection of water leakage and pipe bust, a notification is sent over Internet to the user’s smart phones via cellular and broadband networks.
QFE Converter
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QFE converter is a simple and convenient application for airmen designed to recalculate QNH pressure data into QFE. All you need is to enter airfield or runway elevation and QNH data from ATIS or METAR and you receive QFE value required.
Screenshots
Verdict
The clearest difference is update cadence: Wasservalve at every 5 weeks against QFE Converter's every 9 months. Wasservalve also leads on iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Wasservalve ships an update every 5 weeks, QFE Converter every 9 months. The most recent releases landed on September 28, 2026 and October 27, 2026 respectively.
| Parameter | Wasservalve | QFE Converter |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 54 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Danh Le Ngoc | Iurii Kurinnoi |
In-app purchases
Wasservalve
No in-app purchases
QFE Converter
No in-app purchases
Questions
Is Wasservalve free?
Is QFE Converter free?
Do Wasservalve or QFE Converter have ads?
Which is updated more often, Wasservalve or QFE Converter?
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