Control LED colors, measure NFC download/upload speeds, and modify chip configurations. This utility app interacts with NTAG I²C demonstration boards.
フリカレ(フリーカレンダー) by Kohei Yoneoka



56+ similar apps compared and reviewed
Whether you want more options like GLOW SDK or a completely different take on the same concept, our curated list of 56+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.









Control LED colors, measure NFC download/upload speeds, and modify chip configurations. This utility app interacts with NTAG I²C demonstration boards.






This application allows users to verify various ad formats generated on a specific platform. It supports banner, interstitial, video, and native ads, and lets you preview ad experiences by rendering your own creatives or bid responses.




This utility app allows users to scan, connect to, and read data from BeaconX Pro devices. It also enables configuration of device parameters for iBeacon, Eddystone, and sensor data. Explore device possibilities on the developer's website.


Connect iOS devices to serial port converter devices via WiFi or Ethernet for bi-directional data exchange. Supports RS-232, RS-422, and RS-485 interfaces, ideal for testing with SCADA, robots, UAVs, PLCs, and CNCs.


This utility app uses your device's magnetometer to detect magnetic fields, producing synthesized Geiger counter-style clicks. It offers various modes for detecting changes, compass degrees, and individual vector axes. Note that it does not detect electromagnetic or ionizing radiation.