QR & Barcode Scanner

Review by eFreeware

QR & Barcode Scanner is a free Android tool from Gamma Play. It reads QR codes and barcodes through the camera and also generates codes of your own. The obvious reason to consider it is volume: more than 500 million installs and a 4.8 average across roughly 4.7 million ratings, which suggests a lot of people have kept it on their phones rather than deleting it after one use.

The pitch is speed and simplicity. Point the camera at a code and the app detects it and starts decoding on its own, so there is no shutter button to press and no photo to take first. That is the core of the experience, and everything else in the app is built around it.

It has been on the Play Store since March 2015, with an update in July 2026, so it is a mature tool rather than a new arrival. What follows is a look at what it does, what it costs and who it makes sense for.

A scanner for everyday codes, not a niche tool

This is a general-purpose reader, and the range of formats reflects that. It handles text, web addresses, ISBN numbers, product barcodes, contact cards, calendar entries, email addresses, locations and Wi-Fi codes, among others. When a scan finishes, the app presents the actions that fit that particular code type, so a Wi-Fi code leads toward a connection rather than a wall of generic options.

The everyday use cases are easy to picture. Someone at a restaurant can read the menu code on the table. A person setting up a new router can scan the Wi-Fi code on the back of the box instead of typing a long password. A shopper can check a product barcode and compare the price against what an online store charges. Coupon codes can be scanned to claim a discount.

It also works as a generator. You type in the information you want encoded and the app produces a QR code from it, which is handy for sharing a link, a phone number or a network name with someone standing next to you. You can also share your contact details as a code and generate one from whatever is currently on the clipboard.

The app is not built around any one of these jobs. It is the kind of utility you install once and reach for whenever a code appears, which is roughly what the install numbers suggest has happened for a large number of Android users.

Scanning options that cover awkward situations

Automatic detection is the headline, but the app adds a few things for when conditions are not ideal. A flashlight can be switched on for scanning in the dark, and pinch-to-zoom lets you read codes that are too far away to fill the frame at the default setting. Neither is unusual, but both remove the most common reasons a scan fails.

You are not limited to the camera. The app can read a code from an image, including one already sitting in your gallery, and other apps can share an image to it for scanning. That covers the situation where someone sends you a screenshot of a code rather than showing it to you in person.

Batch scan mode is the more interesting addition. It lets you work through several codes in one session rather than scanning, acting and starting over each time. If you have a page of codes to get through, that changes the job from tedious to manageable.

Results can be exported as CSV or TXT, and CSV files can be imported as well. There is a favorites list for codes you expect to use again, and sharing is built in. Themes, colors and a dark mode let you adjust how the app looks, which matters little for a scanner but costs nothing to have.

What the free version costs you

The app is free to download and it carries ads. There are no in-app purchases, so no paid upgrade, subscription or one-off unlock is attached to it. The trade is straightforward: you get the full set of scanning and generating features in exchange for seeing advertising.

For a utility you open for a few seconds at a time, that arrangement is easier to live with than it would be in an app you sit inside for an hour. Whether the ads bother you will depend on how often you scan and how much patience you have for them.

That no-purchase detail is unusual in this category. Here the developer has kept the model simple. If advertising is something you refuse to tolerate on principle, that is the one condition to weigh before installing.

How it compares with the alternatives

There is no shortage of ways to read a code on Android. Camera apps on many phones recognize QR codes natively, which covers the simplest case of pointing at a link and opening it. If that is all you ever need, a dedicated app is redundant. The gap appears when the code is not a plain web address, when it is a Wi-Fi credential, a contact card or a product barcode, or when you need to work from an image rather than the camera.

What this one offers instead is breadth without a price: generation, batch scanning, imports and exports, and a wide range of recognized formats. The cost is the advertising.

The third option is not an app at all but the browser you are already looking at. That works for a single link and nothing else. The question to ask is how often you deal with codes that carry something other than a URL, because that is where a tool like this is genuinely useful on your home screen.

Where the appeal holds up, and where it does not

The strongest argument for this app is the combination of range and price. It reads a long list of code types, generates codes, works from images and handles batches, all without a purchase. The automatic detection keeps the common case fast, and the flashlight and zoom cover the situations where a scan would otherwise fail.

The counterweight is advertising, which is the price of entry rather than an optional extra. Anyone who finds ads intrusive in a tool they open frequently should factor that in honestly. It is a small friction per use, but it is a friction that never goes away.

This is a scanner that does a lot of related things competently, not a specialist in any single one. If your needs are narrow, that breadth is simply unused capacity, and a phone's built-in camera shortcut may be enough.

Finally, the app is built for Android. If you move between devices, you would be treating this as an Android-specific utility rather than part of a cross-platform setup.

A dependable free reader for Android phones

QR & Barcode Scanner is worth installing if you want a single free app that reads the codes you run into and can produce new ones when you need them. It covers the common cases quickly, handles the awkward ones with a flashlight, zoom and image scanning, and adds batch mode and exports for anyone dealing with codes in quantity. The 4.8 average across millions of ratings suggests that combination has worked for a very large number of people.

It suits Android users who want a general-purpose tool and are content to trade advertising for it. That includes people scanning Wi-Fi codes at home, shoppers checking product prices, and anyone who regularly needs to turn a link or a contact into a code to share.

If your only requirement is opening the occasional web link, your phone's camera already does that, and this app would be more than you need. For everything else, it is a free and capable option.