Comparison

GSL Smart ESS vs Quick QR & Barcode Scanner

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

Head to head

Quick QR & Barcode Scanner

Fastest QR & Barcode scanning

$0.99

🔧 Utilities

No ratingsView app →

About

GSL Smart ESS

Features

Read full description

GSL Energy provides monitoring solutions for various high and low voltage battery system devices, supporting battery systems, residential energy storage, and commercial and industrial energy storage systems.

About

Quick QR & Barcode Scanner

Features

Read full description

Easily scan and create QR codes and barcodes with Simple QR & Barcode Scanner! This fast and lightweight app is designed to give you a seamless experience for scanning, reading, and generating codes—perfect for accessing information or sharing links with ease. Features: Fast QR & Barcode Scanning: Just open the app, point your camera, and instantly scan any QR code or barcode. Code Generation: Create custom QR codes for URLs, text, contacts, and more. Perfect for sharing info without typing! Simple and Intuitive Interface: Designed for anyone to use with ease, no extra steps needed. Secure: No data collected—your scans and creations stay private. Whether you’re scanning for convenience, curiosity, or business, Simple QR & Barcode Scanner has everything you need for a quick, secure, and efficient experience.

Screenshots

GSL Smart ESS4 screens

Quick QR & Barcode Scanner4 screens

Verdict

The call

The clearest difference is price: GSL Smart ESS at Free against Quick QR & Barcode Scanner's $0.99. GSL Smart ESS also leads on ads (none vs shown). Quick QR & Barcode Scanner's advantage is update cadence (every 4 months vs every 9 months). On in-app purchases, device support and iOS requirement 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

GSL Smart ESS is free to download; Quick QR & Barcode Scanner costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

GSL Smart ESS ships an update every 9 months, Quick QR & Barcode Scanner every 4 months. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 3 level

GSL Smart ESS versus Quick QR & Barcode Scanner: the parameters behind the verdict, then further details
Parameter	GSL Smart ESS	Quick QR & Barcode Scanner
Price	Free — better	$0.99
Update frequency	Every 9 months	Every 4 months — better
Ads	No — better	Yes
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	15.6	15.0 — better
Further details — not scored
Size	37 MB	71 MB
Age rating	4+	4+
Developer	SHENZHEN GSL ENERGY CO LTD	Khairul Anwar

In-app purchases

None

GSL Smart ESS

No in-app purchases

None

Quick QR & Barcode Scanner

No in-app purchases

Questions

Is GSL Smart ESS free?

GSL Smart ESS is free to download, with no in-app purchases.

Is Quick QR & Barcode Scanner free?

Quick QR & Barcode Scanner costs $0.99, with no in-app purchases.

Do GSL Smart ESS or Quick QR & Barcode Scanner have ads?

Quick QR & Barcode Scanner shows ads; GSL Smart ESS does not.

Which is updated more often, GSL Smart ESS or Quick QR & Barcode Scanner?

GSL Smart ESS ships an update every 9 months, and Quick QR & Barcode Scanner every 4 months. Most recently, GSL Smart ESS was updated on October 2, 2026 and Quick QR & Barcode Scanner on October 10, 2026.