MEZZO vs VSG101 Update
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MEZZO
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TBB's MEZZO is a digital switch and intellient electrical system for motorhome, camper van and trailer. So this mobile allows you to: 1) Monitor how master power and other power module like TBB's inverter (if there is) is working 2) Monitor water tanks status 3) Monitor lithium battery (If it's TBB's M series) 4) Control system or DC loads remotely It's a useful tool to help you manage and monitor electrical system on your RV. Enjoy your fun with it.
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 MEZZO's every 2 months. MEZZO's advantage is iOS requirement (13.0 vs 16.6). 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.
MEZZO ships an update every 2 months, VSG101 Update every 5 weeks. The most recent releases landed on September 5, 2026 and September 13, 2026 respectively.
| Parameter | MEZZO | VSG101 Update |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 26 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | TBB Power Co., Ltd | VITALSIGNS TECHNOLOGY CO., LTD. |
In-app purchases
MEZZO
No in-app purchases
VSG101 Update
No in-app purchases
