Comparison

OB ToolBox vs QBL Calculator

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

Head to head
About

OB ToolBox

This app offers a quick reference for essential medical values related to fetal growth, amniotic fluid, and Doppler indices. It includes calculators for preterm birth prediction, cesarean risk, and risk of stillbirth or miscarriage.

Highlights
  • Fetal growth reference values
  • Estimated fetal weight calculator
  • Amniotic fluid and Doppler indices
  • Bishop score reference
  • Preterm birth predictor
  • Cesarean risk calculator
  • Stillbirth and miscarriage risk calculators
Features
Read full description

OB ToolBox provides a useful and quick reference values for fetal growth, estimated fetal weight, amniotic fluid and doppler indices, Bishop scores, preterm birth predictor, cesarean risk calculator, stillbirth calculator, miscarriage risk calculator, and more.

About

QBL Calculator

Features
Read full description

QBL by Camille is an iPhone app that calculates Quantitative Blood Loss (QBL) for cesarean and vaginal deliveries. It replaces the paper QBL worksheet — combining the volumetric measurement (fluid in the suction canister or drape) with the gravimetric one (each soiled sponge, lap, and linen weighed wet, minus its known dry weight) into a running total in real time: gravimetric + volumetric − irrigation, where 1 gram equals 1 milliliter. A color-coded indicator keeps the number meaningful at a glance, flagging when loss enters the elevated range and when it crosses the postpartum-hemorrhage threshold. Built-in tare weights are fully editable to match your facility's supplies, and cases can be named and saved to a private, on-device history with an optional Face ID lock. A fast bedside calculation aid — not a medical device, and not part of the patient's record.

Screenshots

OB ToolBox4 screens
QBL Calculator4 screens

Verdict

The call

The clearest difference is iOS requirement: OB ToolBox at 13.0 against QBL Calculator's 17.0. 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

CostPrice · In-app purchases · Ads · Monetization

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

Scorecard1 real difference · 8 level
OB ToolBox versus QBL Calculator: the parameters behind the verdict, then further details
ParameterOB ToolBoxQBL Calculator
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size56 MB1 MB
Age rating12+17+
DeveloperFrederick BlairKinan Sawar

In-app purchases

None

OB ToolBox

No in-app purchases

None

QBL Calculator

No in-app purchases

Questions

Is OB ToolBox free?
OB ToolBox is free to download, with no in-app purchases.
Is QBL Calculator free?
QBL Calculator is free to download, with no in-app purchases.
Do OB ToolBox or QBL Calculator have ads?
Neither OB ToolBox nor QBL Calculator shows ads.

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