Smart Solar vs Useful QR Code Reader PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart Solar
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太陽発電設備の設置シミュレーションを行う業務用アプリです。 設置する太陽光パネルの枚数や角度、設置する地点を入力して、その地点の日射量データ、太陽光パネル等の性能データをもとに、発電量のシミュレーションを行います。 設置する機器の見積りも作成可能です。
Useful QR Code Reader PRO
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A convenient QR Code Reader app has been released! This app is an easy, simple, and fast QR code reading application. Additionally, it is a handy QR code reader app that records your scan history. After launching the app, grant camera access, hold your device over a QR code, and scan it. The scanned QR code will be displayed at the top of the main screen. Tap it to open the browser and view the URL, or long-press to copy it to the clipboard and use the text as needed. After launching, tap the "Load Image" button and grant access to your photo library. Then, load an image containing a QR code, such as a screenshot, and the app will scan the QR code within the image. (In some cases, it may fail to read due to errors.) ※The 'PRO' version is a paid version without ads. The app's functionality is the same as the free version. [How to Use] - Point the camera at a QR code on the initial screen to scan it. - The top right button on the screen transitions to the main screen but skips QR code scanning. - The top left button on the screen scans a QR code from an image in the photo library. - The scanned content is displayed at the top of the main screen. - Tap to open the browser. - Long-press to copy to the clipboard. - QR code scan history is displayed at the bottom of the screen. - Delete all history with "Delete All History." - You can delete history individually. - Tapping on history entries also opens the browser. - Long-pressing history entries copies them to the clipboard. - Tap the "I" in the top right to view information about the app. - Use the back arrow in the top left to return to the initial QR code scanning screen. That's how to use the app. It is a simple, convenient, and fast QR code reading app! Download and try it today!
Screenshots
Verdict
The clearest difference is price: Smart Solar at Free against Useful QR Code Reader PRO's $2.99. Smart Solar also leads on iOS requirement (12.0 vs 15.6). Useful QR Code Reader PRO's advantage is update cadence (every 9 days vs every 2 months) and device support (3 vs 1). On 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
Smart Solar is free to download; Useful QR Code Reader PRO costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Smart Solar ships an update every 2 months, Useful QR Code Reader PRO every 9 days. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.
| Parameter | Smart Solar | Useful QR Code Reader PRO |
|---|---|---|
| Price | Free — better | $2.99 |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 108 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Intelade Inc. | katapu.net |
In-app purchases
Smart Solar
No in-app purchases
Useful QR Code Reader PRO
No in-app purchases
Questions
Is Smart Solar free?
Is Useful QR Code Reader PRO free?
Do Smart Solar or Useful QR Code Reader PRO have ads?
Which is updated more often, Smart Solar or Useful QR Code Reader PRO?
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