GVM Slider vs SP33D

GVM Slider, is an APP to control the camera slide rail . Through this APP, you can replace the traditional handheld remote control device to control the slide rail device. The functions currently provided by the APP are as follows: 1. Video shooting function, you can set the speed, add key points, set the automatic round trip, set the end stop and switch the automatic mode. 2. Time-lapse shooting function: users can perform time-lapse shooting through preset number of shots, stop time, delay time, starting point and ending point. 3. Panorama shooting: The user can set the diagonal A, the diagonal B, the number of horizontal frames, the number of vertical frames, the delay time and the stop time for panoramic shooting. 4. System settings: you can set the sound and vibration effects when you click, or you can reset the system.

SP33D: your ultimate speedometer companion. Real-time speed monitoring right on your phone, complete with a sleek head-up display. SP33D turns your iPhone or iPad into a clean, glanceable speedometer. One giant number, no clutter — whether you're driving, cycling, or running. KEY FEATURES 1. Head-Up Display (HUD): Place your phone near the windshield and SP33D mirrors the display so your speed reflects right in the glass — eyes on the road, always. 2. Real-Time Speed Tracking: Navigation-grade GPS precision delivers smooth, reliable readings the moment they happen. 3. MPH or KM/H: Switch units instantly, anytime. Your choice is remembered. 4. Distraction-Free Design: A single oversized readout on a pure black background — easy to read in daylight, easy on your eyes at night. The screen stays awake for your whole trip. 5. Works Everywhere: Car, motorcycle, bicycle, or on foot — SP33D adapts to however you move. Download SP33D and take control of your speed. Note: Speed is calculated from GPS and may differ slightly from your vehicle's speedometer.