PLCLink vs QVPN by QNAP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PLCLink
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Supervision application for PLC or other URL command device. Particularly intended for supervision integrators, for research laboratory, up to end user or home remote. PLCLink can read and write one or more accessible PLC over Internet with ModBus or HTTP protocols and is well adapted for numerical results presentation. You just add a XML file inside app documents folder or inside PLC folder, some web page help you for this work. Transfert between PLC and application with ModBus (502) or HTTP (80) format. WAGO PLC are full compatibles because of SSI capabilities but some other ModBus PLC can be used to. • Configuration are easy to send for end user with a email. • Cell value can be send by email. (IFTTT action). • A room can be protected with a PIN code. • DropBox can help you for file storage. • QR Code can load wagoML source with plclink:// protocol. • Data can be saved in a .csv file. • Modbus record transfert mode for easy debug. • Modbus can now be synchronous for Schneider PLC. • Many data representation : text, days, month, bits and explicit icon. • A colorPicker for setting RGB lamp. • Push notification. • Action with javascript objects into iFrame. IPad version is very powerful with self editor for wagoML local file. PLCLink questions regularly this file (2s) and display results in a specific room window. This file comes with WagiML format, you will find a description here : http://pautex.fr/plclink/wagoml.php Entries can be saved and email up to final destination client, very easy to managed. This version allows playback of information by a url, the answer is direct text reply or included in an xml or JSON structure. These mode are ready good for small device as MBED and Raspberry PI. PUSH notification You choose a random 10+ digits number and simply with reading a specific URL you send calls to iPhones recorded with this number. All PLCs connected to the Internet are capable of producing this notification. Development : Pautex JF ¢ Pautex 2011-2024, NANCY
QVPN by QNAP
Securely connect to your QNAP NAS with an encrypted tunnel. Supports QNAP's proprietary QBelt protocol and Tier 2 VPN connections. View connection history and manage advanced settings.
- Encrypted tunnel to QNAP NAS
- QNAP proprietary QBelt protocol
- Tier 2 VPN connections
- Speed control chart
- Connection history
- Advanced settings
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QVPN is a secure connect application that allows you to create the encrypted tunnel to your QNAP NAS. Minimum requirements to use this application • Please ensure you have a QNAP NAS with QTS 4.3.5 or above. • Please ensure you have installed QVPN v2.0 or above from the NAS App Center, and the protocol QBelt initialized. • iOS 16.0 (or above) Main Features • Support QNAP proprietary VPN protocol - QBelt. • Support Tier 2 VPN connections • Speed control chart • Connection History • Advanced settings
Screenshots
Verdict
The clearest difference is price: QVPN by QNAP at Free against PLCLink's $8.99. PLCLink's advantage is iOS requirement (12.0 vs 16.0). On update cadence, 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
QVPN by QNAP is free to download; PLCLink costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PLCLink ships an update every 2 months, QVPN by QNAP every 4 months. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.
| Parameter | PLCLink | QVPN by QNAP |
|---|---|---|
| Price | $8.99 | Free — better |
| Rating | — | 1.7 (18 ratings) — better |
| Positive reviews | — | 11.1% of reviews |
| Number of ratings | — | 18 — better |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 4 MB | 69 MB |
| Age rating | 17+ | 4+ |
| Developer | Jean-Francois Pautex | QNAP Systems, Inc. |
In-app purchases
PLCLink
No in-app purchases
QVPN by QNAP
No in-app purchases
Questions
Is PLCLink free?
Is QVPN by QNAP free?
Do PLCLink or QVPN by QNAP have ads?
Which is updated more often, PLCLink or QVPN by QNAP?
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