Synchrony vs GOK SmartBox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synchrony
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The Synchrony User APP is a configuration program for Synchrony™， used to configure Synchrony. Synchrony is a portable signal analyzer. For more information, please visit https://synchrony.oymotion.com.
GOK SmartBox
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SmartBox: Real-Time Monitoring for Your Tank Levels The SmartBox app, in combination with the electronic level indicator SmartBox AIR Wi-Fi, offers an innovative solution for monitoring tank levels in real time. This app is specifically designed to provide you with a comprehensive overview of your tank levels – no matter where you are. Main Features and Benefits of the SmartBox App: - Real-time monitoring: Receive up-to-date level data directly on your smartphone or tablet. Track consumption and plan refills in good time. - User-friendly interface: The intuitive user interface allows for easy navigation and quick access to key information. - Manage multiple tanks: Monitor several tanks simultaneously and keep an overview of all your systems. - Secure and reliable: The SmartBox app uses secure connections to protect your data and ensure reliable monitoring. - Increased efficiency: Always know how much to reorder, for example, when prices are favourable. - Full control: Always know the exact level of your tank, helping prevent heating failure due to an empty tank. - Multiple menu languages: German, English, French, Dutch, Italian, Spanish and Polish. - Data analysis: Export for further processing in Microsoft Excel. Areas of Application: The SmartBox app is ideal for private households, commercial operations and industrial facilities that rely on dependable monitoring of their tank levels. Whether it’s used for waste oil, diesel fuel, FAME, heating oil, bio heating oil, HVO, vegetable oil, rainwater or other water-polluting non-flammable liquids – the app offers a flexible solution for various application areas. Download the SmartBox app today and benefit from modern and reliable tank level monitoring. With the SmartBox app, you’ll always stay in control and can rest assured that your tanks are adequately filled.
Screenshots
Verdict
The clearest difference is update cadence: Synchrony at every 2 weeks against GOK SmartBox's every 2 months. Synchrony also leads on iOS requirement (9.0 vs 11.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Synchrony ships an update every 2 weeks, GOK SmartBox every 2 months. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.
| Parameter | Synchrony | GOK SmartBox |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 40 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | OYMotion Technologies Co., Ltd | GOK |
In-app purchases
Synchrony
No in-app purchases
GOK SmartBox
No in-app purchases
