VSG102 Update vs ThunDer Fast Charge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VSG102 Update
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Update the VSG102 firmware tools
ThunDer Fast Charge
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1) Monitor Thunder’s data at a glance - the ultimate battery analysis tool. 2) Monitor Thunder’s runtimes ( charging /discharging times) 3) Stay informed about Thunder charge /discharge by utilizing accurate notifications 4) Today widget extension to view your Thunder’s health condition. 5) Thunder’s health graph on the health screen 6) Thunder’s Daily/weekly/monthly graphs & records on history screen 7) More accurate and consistent discharging stats using Thunder .
Screenshots
Verdict
The clearest difference is update cadence: ThunDer Fast Charge at every 3 weeks against VSG102 Update's every 2 months. ThunDer Fast Charge also leads on iOS requirement (12.0 vs 14.0). 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.
VSG102 Update ships an update every 2 months, ThunDer Fast Charge every 3 weeks. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.
| Parameter | VSG102 Update | ThunDer Fast Charge |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | VITALSIGNS TECHNOLOGY CO., LTD. | Dong Guan Zhengyang Electronic Mechanical Ltd |
In-app purchases
VSG102 Update
No in-app purchases
ThunDer Fast Charge
No in-app purchases
Questions
Is VSG102 Update free?
Is ThunDer Fast Charge free?
Do VSG102 Update or ThunDer Fast Charge have ads?
Which is updated more often, VSG102 Update or ThunDer Fast Charge?
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