By vs LumiSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
By
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With its user friendly interface, By-gate allows you to control and monitor your Vimar gate with ease with your smartphone or tablet from anywhere, at any time. Create an account for the use of the By-gate service, connect your device to the Internet and immediately start to control your gate with a simple click. Don't mind remembering to close your gate, By-gate will notify you if you forgot it open, do not open the gate in the morning when you go out or at night when you get back, with By-gate you can set one or more timers and find it already open when needed. You can even have the gate open automatically, simply by approaching it at a distance as you like thanks to the App geolocation function.
LumiSync
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The Ultimate Remote Stroboscope App for Physics Experiments Enhance your physics experiments and educational activities with LumiSync, a versatile stroboscope app designed specifically for students, educators, and amateur scientists. Transform your iPhone into a precise tool for studying light, motion, and wave phenomena, complete with customizable strobe and solid light settings. Key Features: - Precise Frequency Control (1-60 Hz): Adjust the strobe’s frequency with high accuracy to study periodic motion, resonance, and wave phenomena. Explore the effects of different strobe frequencies on moving objects and analyze motion in real time. - Solid Light Mode (Screen & LED): In addition to strobe effects, LumiSync provides a continuous, solid light source. Choose any color for the screen to explore the visible light spectrum, and utilize the iPhone’s LED flashlight for bright, white light. - Customizable Screen Light Colors: Experiment with different colors on the screen to study wavelength, diffraction, refraction, and other light-related concepts. Perfect for classroom demonstrations or personal learning. - Brightness Adjustment for Optimal Conditions: Control the brightness of the screen to suit different experimental environments, ensuring precise lighting whether you’re in a bright lab or a dark room. - Remote Control via Web Portal: Conduct hands-free experiments with LumiSync’s web-based remote control. Each user receives a unique 6-character code, allowing them to control the app remotely—ideal for group experiments or educational demonstrations. - Dark Mode UI: LumiSync’s sleek dark mode ensures a comfortable experience in low-light environments, reducing screen glare and making it easier to focus on your experiments. Educational and Experimental Applications: - LumiSync is designed to be a valuable tool for physics and science education: - Wave and Motion Studies: Use the strobe function to visualize wave patterns, harmonic oscillations, and the motion of rotating objects. Investigate the relationship between frequency and motion in real time. - Color and Light Exploration: Experiment with solid light in various colors on the screen to explore concepts such as the visible spectrum, light absorption, and color theory. Switch between the customizable screen and the white LED flashlight for diverse lighting effects. - Motion Analysis: The strobe function enables high-frequency flashing, helping you freeze and slow down the motion of fast-moving objects, making it easier to analyze rotational or oscillatory motion in physics experiments. - Remote Learning and Classroom Demonstrations: LumiSync’s remote control feature, accessible via the web, allows teachers and students to control the app from any device, facilitating hands-free demonstrations and distance learning. Download LumiSync today and take your physics experiments to the next level with the power of light!
Screenshots
Verdict
The clearest difference is price: By at Free against LumiSync's $0.99. By also leads on iOS requirement (8.0 vs 16.0). LumiSync's advantage is update cadence (fortnightly vs every 3 months) and chart position (#180 vs unranked). On ads, in-app purchases and device support 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
By is free to download; LumiSync costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
By ships an update every 3 months, LumiSync fortnightly. The most recent releases landed on September 19, 2026 and August 15, 2026 respectively.
| Parameter | By | LumiSync |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Best chart rank | — | #180 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 10 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Vimar S.p.A. | Erfan Reed |
In-app purchases
By
No in-app purchases
LumiSync
No in-app purchases









