Comparison

RRTool vs BladderUSG Pro

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

Head to head
About

RRTool

Features
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RRTool is the extended features companion app to your RR1090 digital refractometer and similar Bay Area Instruments devices. It communicates via encrypted BLE with your device, mirroring its buttons and providing extended functionalities such as: cloud spreadsheet logging of your measurements, enabling of ATC for Brix, QR code generation and device firmware upgrades.

About

BladderUSG Pro

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*Medical Disclaimer This App’s imaging features are available and intended for diagnostic or procedure guidance purposes only when certified medical professionals use Bladderscanner transducers (Medical Device). This App only displays or manages ultrasound imaging or Doppler signals, and Image interpreting and specific diagnosis shall be left to qualified medical professionals. The imaging or Doppler signals displayed are only for certified medical professionals, not meant to provide medical advice or dia。Our bladder analyzer has obtained medical license in China and FDA certification in the United States.Registration Certificate No.: Yue Xi Zhu Zhun 20160261592 US FDA Certificate K172750 Jurisdiction Statement: This application is intended for use in China and the United States. We control and operate this APP in the China ("China") and the United States; Unless otherwise specified, the materials displayed on this app are only for the purpose of promoting products and services within China and the United States. We have not made any statements regarding the applicability or suitability of any materials on this APP in any other region. If you choose to access this app from another location, it is your responsibility to comply with applicable local laws.

Screenshots

RRTool4 screens
BladderUSG Pro1 screens

Verdict

The call

The clearest difference is update cadence: BladderUSG Pro at monthly against RRTool's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

RRTool ships an update every 4 months, BladderUSG Pro monthly. The most recent releases landed on October 3, 2026 and September 26, 2026 respectively.

Scorecard1 real difference Β· 5 level
RRTool versus BladderUSG Pro: the parameters behind the verdict, then further details
ParameterRRToolBladderUSG Pro
PriceFreeFree
Update frequencyEvery 4 monthsMonthly β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 β€” better15.0
Further details β€” not scored
Size5 MB17 MB
Age rating4+4+
DeveloperBay Area Instruments Inc.SonoStarMed

In-app purchases

None

RRTool

No in-app purchases

None

BladderUSG Pro

No in-app purchases

Questions

Is RRTool free?
RRTool is free to download, with no in-app purchases.
Is BladderUSG Pro free?
BladderUSG Pro is free to download, with no in-app purchases.
Do RRTool or BladderUSG Pro have ads?
Neither RRTool nor BladderUSG Pro shows ads.
Which is updated more often, RRTool or BladderUSG Pro?
RRTool ships an update every 4 months, and BladderUSG Pro monthly. Most recently, RRTool was updated on October 3, 2026 and BladderUSG Pro on September 26, 2026.

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