Comparison

DuLink vs QR Coder & Barcode Scanner +

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

DuLink

Innovate for a green future

Free

🔧 Utilities

No ratingsView app →

QR Coder & Barcode Scanner +

Scan and create QR

Free

🔧 Utilities

No ratingsView app →

About

DuLink

Features

Read full description

DuLink, an innovative application centered around photovoltaic system management, wields robust remote monitoring functions, presenting real-time operating parameters of power stations and affording a clear insight into their operational status. Via an advanced data analysis engine, it deeply excavates data value to offer comprehensive and precise performance evaluations and trend forecasts for power stations.

About

QR Coder & Barcode Scanner +

Read full description

QR Creator & Reader is a fast and simple app for scanning and creating QR codes on iOS and macOS. Instantly scan QR codes using your camera or images, and generate codes for links, text, contacts, Wi-Fi, and more. All scanned and created codes are saved for easy access, with seamless support across Apple devices. Designed with privacy in mind, the app works fully on-device with no accounts or tracking.

Screenshots

DuLink4 screens

QR Coder & Barcode Scanner +4 screens

Verdict

The call

The clearest difference is update cadence: QR Coder & Barcode Scanner + at every 4 days against DuLink's fortnightly. QR Coder & Barcode Scanner + also leads on device support (4 vs 2). DuLink's advantage is iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

DuLink ships an update fortnightly, QR Coder & Barcode Scanner + every 4 days. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

Scorecard3 real differences · 3 level

DuLink versus QR Coder & Barcode Scanner +: the parameters behind the verdict, then further details
Parameter	DuLink	QR Coder & Barcode Scanner +
Price	Free	Free
Update frequency	Fortnightly	Every 4 days — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPad, Mac, Apple Watch — better
Requires iOS	13.0 — better	17.0
Further details — not scored
Size	61 MB	6 MB
Age rating	4+	4+
Developer	Dunext Technology Suzhou Co., Ltd.	Constellation Ltd

In-app purchases

None

DuLink

No in-app purchases

None

QR Coder & Barcode Scanner +

No in-app purchases

Questions

Is DuLink free?

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

Is QR Coder & Barcode Scanner + free?

QR Coder & Barcode Scanner + is free to download, with no in-app purchases.

Do DuLink or QR Coder & Barcode Scanner + have ads?

Neither DuLink nor QR Coder & Barcode Scanner + shows ads.

Which is updated more often, DuLink or QR Coder & Barcode Scanner +?

DuLink ships an update fortnightly, and QR Coder & Barcode Scanner + every 4 days. Most recently, DuLink was updated on September 10, 2026 and QR Coder & Barcode Scanner + on September 8, 2026.