Comparison

SEMG vs sherpa3D Scan

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

SEMG

Features

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H1 Hand Rehab System is Our company latest and new generation of multifunctional rehabilitation equipment, which can be used in rehabilitation department and neurological department in the hospital. This device has a variety of functions, such as Multimedia Interactive Game Triggered by sEMG signals, neuromuscular electrical stimulation, EMG feedback triggered electrical stimulation. The H1 Hand Rehab System is equipped with the APP. Almost all operations are done through the APP, which replaces the physical buttons on regular products. Disclaimer--Diagnosis in this app is for reference only. seek a doctor’s advice in addition to using this app and before making any medical decisions.

About

sherpa3D Scan

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With this app you can scan your feet and directly upload them to the sherpa3D platform. This process will save you time! Create a new order and enter a reference, scan the left and/or right foot and click upload.

Screenshots

sherpa3D Scan3 screens

Verdict

The call

The clearest difference is device support: sherpa3D Scan at 3 against SEMG's 1. On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SEMG ships an update every 2 months, sherpa3D Scan every 3 months. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

Scorecard1 real difference · 5 level

SEMG versus sherpa3D Scan: the parameters behind the verdict, then further details
Parameter	SEMG	sherpa3D Scan
Price	Free	Free
Update frequency	Every 2 months — better	Every 3 months
Ads	No	No
In-app purchases	No	No
Devices	iPad	iPhone, iPad, iPod — better
Requires iOS	15.0 — better	15.6
Further details — not scored
Size	70 MB	36 MB
Age rating	12+	4+
Developer	Shenzhen XFT Medical Limited	LutraCAD B.V.

In-app purchases

None

SEMG

No in-app purchases

None

sherpa3D Scan

No in-app purchases

Questions

Is SEMG free?

SEMG is free to download, with no in-app purchases.

Is sherpa3D Scan free?

sherpa3D Scan is free to download, with no in-app purchases.

Do SEMG or sherpa3D Scan have ads?

Neither SEMG nor sherpa3D Scan shows ads.

Which is updated more often, SEMG or sherpa3D Scan?

SEMG ships an update every 2 months, and sherpa3D Scan every 3 months. Most recently, SEMG was updated on November 2, 2026 and sherpa3D Scan on November 8, 2026.