BladderUSG vs Readius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BladderUSG
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Cutting edge wireless ultrasound bladder volume scanner system. Disclaimer: BladderUSG just provides ultrasound image as a reference, it does not constitute medical advice. You should consult a physician regarding medical diagnosis or treatment.
Readius
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全数字掌上式彩色多普勒超声显像仪 本应用配合Readius L8、C3、C6探头使用，在做医疗决定之前，还应寻求医生的建议。
Screenshots
Verdict
The clearest difference is update cadence: Readius at every 2 months against BladderUSG's every 5 months. BladderUSG's advantage is iOS requirement (11.0 vs 14). 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.
BladderUSG ships an update every 5 months, Readius every 2 months. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.
| Parameter | BladderUSG | Readius |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 14 |
| Further details — not scored | ||
| Size | 11 MB | 418 MB |
| Age rating | 12+ | 17+ |
| Developer | SonoStarMed | Shantou Institute of Ultrasonic Inst. Co., Ltd. |
In-app purchases
BladderUSG
No in-app purchases
Readius
No in-app purchases
