WirelessUSG Flash vs eRMT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WirelessUSG Flash
This application displays ultrasound images for reference. It is important to note that it does not provide medical advice and users should consult a physician for diagnosis or treatment.
- Ultrasound image display
- Reference imaging
- Disclaimer for medical use
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Cutting edge ultrasound system. Disclaimer: WirelessUSG just provides ultrasound image as a reference, it does not constitute medical advice. You should consult a physician regarding medical diagnosis or treatment.
eRMT
This app enhances respiratory muscle training with interactive games. It connects to a specialized trainer device via Bluetooth, allowing users to control in-game actions through breathing exercises. Designed for entertainment and training efficiency, it's intended for use with specific hardware.
- Connects to Sonmol/Nascool Respiratory Muscle Trainer
- Bluetooth connectivity
- Three interactive training games
- Inhale/exhale controlled gameplay
- Progress tracking for training efficiency
- CE-certified and FDA-approved medical device integration
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This application is designed to work with Sonmol/Nascool Respiratory Muscle Trainer equipped with Electronic Manometer, providing 3 games to make your training more efficient. Game 1 Little Beluga Whale GO GO GO: Use the respiratory muscle trainer to inhale and exhale, making the beluga whale move up and down to navigate through obstacles. Operation: ①Install the Electronic Manometer on the Mainbody and power on the device. Launch the app on your smartphone and initiate Bluetooth connection. When the connection is established, the Bluetooth indicator on the Electronic Manometer's screen will light up. ②Follow the game instructions for each activity. Notes: For detailed instruction of use please refer to the user manual. IMPORTANT: This app does not contain any information about medical conditions and treatments, all content is for entertainment only. You must not rely on the game performance or scores from this app as an alternative to medical devices for your doctor or other professional healthcare providers. You should consult your doctor or other professional healthcare providers if you have specific questions about any medical matter. DISCLAIMER Jurisdiction statement: the eRMT app is part of a medical device that has been CE-certified and FDA-approved and shall only be used in the following regions: - United States The app is designed to work with a CE-certified medical device that has been externally audited. Both safety and accuracy have been certified. Both certificates can be found here: https://staticssl.healthcare-inc.com/app/FDA.pdf https://staticssl.healthcare-inc.com/app/CE.pdf
Screenshots
Verdict
WirelessUSG Flash and eRMT both sit at 2.3 stars, but that hides the real split: 33% of eRMT's written reviews are positive against 14% of WirelessUSG Flash's. WirelessUSG Flash's advantage is update cadence (every 4 weeks vs every 2 months) and iOS requirement (13.0 vs 15.6). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 2.3 for WirelessUSG Flash against 2.2 for eRMT. Both are backed by a comparable volume of ratings — 12 and 6 respectively. Written reviews are what separate them: 14% of WirelessUSG Flash's written reviews are positive against 33% of eRMT's.
WirelessUSG Flash ships an update every 4 weeks, eRMT every 2 months. The most recent releases landed on September 2, 2026 and August 19, 2026 respectively.
| Parameter | WirelessUSG Flash | eRMT |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (12 ratings) — better | 2.2 (6 ratings) |
| Positive reviews | 14.3% of reviews | 33.3% of reviews — better |
| Number of ratings | 12 — better | 6 |
| Update frequency | Every 4 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 22 MB | 38 MB |
| Age rating | 12+ | 4+ |
| Developer | SonoStarMed | Chongqing Moffy InnovationTechnology Co,Ltd |
Customer experience
WirelessUSG Flash
eRMT
In-app purchases
WirelessUSG Flash
No in-app purchases
eRMT
No in-app purchases









