VoidMicroBT vs Reaction
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
VoidMicroBT
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Operation software for Bluetooth version VoidMicro engraving machine Smart laser engraving equipment for personal or small commercial use is connected to a mobile phone or computer to engrave pictures and characters on metal or non-metal surfaces. With cutting, filling, gray scale and other engraving methods, you can design your printed products more diversely. The multi-image printing function brings together different printing elements, making your design printing more convenient. 1. Carving Load pictures through the App, and use App control equipment to carve to the surface of wood, paper, leather, metal and other materials. 2. Cutting etc. Through image processing, the pictures are processed into different forms, and they are engraved on the surface of the material or the material is cut and cut.
Reaction
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Reaction measures the moment you LIFT your finger, not when you tap. By removing the travel time of moving your finger to the screen, it gets closer to your pure reaction time. Features - Hold, then release the instant the signal appears. Release-time measurement - Frame-accurate timing to minimize display latency - Anticipation guard. Releases faster than humanly possible are rejected - Per-session average, best, and consistency (standard deviation) - Trend chart and your personal reaction-time distribution - Export your results to CSV - Everything stays on device. No data collection, tracking, or ads - Works on iPhone, iPad, and Mac A note on accuracy Any software-based tester has a small, unavoidable delay (typically under one frame) from the display pipeline. Treat results as a consistent way to track your own trend over time, not as a lab-grade absolute measurement.
Screenshots
Verdict
The clearest difference is iOS requirement: VoidMicroBT at 13.0 against Reaction's 17.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | VoidMicroBT | Reaction |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | โ |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 7 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | ๆพ ๅด | One Choi |
In-app purchases
VoidMicroBT
No in-app purchases
Reaction
No in-app purchases









