RSL Central vs VSG101 Update
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RSL Central
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An easy-to-use app to get started with onsemi Bluetooth Low Energy wireless microcontrollers and periphery devices. RSL Central scans for and establishes a Bluetooth Low Energy connection with onsemi Bluetooth Low Energy wireless microcontrollers. The app displays fields such as measured battery level, voltage, current, LED status, push button status, or others depending on the onsemi wireless microcontroller and configuration.
VSG101 Update
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Update the VSG101 firmware tools
Screenshots
Verdict
The clearest difference is update cadence: VSG101 Update at every 5 weeks against RSL Central's every 3 months. 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.
RSL Central ships an update every 3 months, VSG101 Update every 5 weeks. Both last shipped on October 1, 2026.
| Parameter | RSL Central | VSG101 Update |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | ON SEMICONDUCTOR CORPORATION | VITALSIGNS TECHNOLOGY CO., LTD. |
In-app purchases
RSL Central
No in-app purchases
VSG101 Update
No in-app purchases
Questions
Is RSL Central free?
Is VSG101 Update free?
Do RSL Central or VSG101 Update have ads?
Which is updated more often, RSL Central or VSG101 Update?
Other comparisons
