SensorLogger vs QR Direct

A logger App that can measure acceleration, gyroscope, and magnetic field synchronously, then export as a CSV file. The measured values can be visualized in real-time by enabling "Realtime visualization". On the other hand, when you want to measure at a more accurate frequency, disabling "Realtime visualization" is preferred. Also, if the sampling rate is set too high, the same value may be sampled many times depending on the hardware specifications.

QR Direct gathers the QR codes scattered across your photo library so the one you need is always a tap away. • Find QR codes automatically QR Direct scans your photo library on this device, lines up every screenshot that contains a QR code in one grid, and shows the link inside each code. • Read and open See what a QR code contains, then open its link, copy it, or share it. Touch and hold any code for quick actions. • Scan with the camera Point the built-in camera scanner at any QR code to see what it contains, or switch Scan to open WeChat or Alipay instead. • Favorites first Favorite the codes you use most to keep them at the top, and open your favorites automatically at launch. • Quick Links Jump straight to the code pages of the apps you use most, such as transit codes, or add your own links. • Home Screen widget Open Favorites, Quick Links, and Scan in one tap. • Privacy first All recognition happens on your device. Your photos are never uploaded, and no personal information is collected. Pro (one-time purchase): scan a larger part of your photo library with no purchase prompts. Available in English, 简体中文, 繁體中文, 日本語, 한국어, and العربية.