# OB ToolBox — OB Tools and References

> Medical reference and calculator for fetal growth and obstetric risk assessment. (iPhone/iPad app by Frederick Blair.)

- Source: https://appshunter.io/ios/app/ob-toolbox/id1565667366 (this page in markdown: same URL + `.md`)
- Developer: [Frederick Blair](https://appshunter.io/developer/1565667368)
- Category: Medical, Reference
- Price: Free (on sale, was $2.99)
- Age rating: 12+
- Requires: iOS 13.0 · 56 MB
- Languages: Arabic, English, French, Hindi, Chinese, Spanish, Chinese
- Released: 2024-07-25
- Data updated: 2026-07-20
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ob-toolbox/id1565667366/reviews.md

## What is OB ToolBox?

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.

## Key features

- 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


## Frequently asked questions about OB ToolBox

### What medical information does OB ToolBox provide?

OB ToolBox offers reference values for fetal growth, estimated fetal weight, amniotic fluid, and Doppler indices. It also includes calculators for Bishop scores, preterm birth prediction, cesarean risk, and risk of stillbirth or miscarriage.

### Is OB ToolBox free to use?

Yes, OB ToolBox is completely free to download and use, with no in-app purchases or advertisements.

### What devices is OB ToolBox compatible with?

OB ToolBox is available for iPhone, iPad, and iPod devices.

### What is the age rating for OB ToolBox?

OB ToolBox has an age rating of 12+, making it suitable for older teens and adults.

### How often is OB ToolBox updated?

The latest version is 1.5.5, released on 2026-02-09. While the last update date is in the future, indicating potential for ongoing development, users can expect regular updates for accuracy and new features.

### What do users think of OB ToolBox?

Based on the available data, OB ToolBox has a perfect 5.0-star rating from 2 reviews, indicating a very positive user sentiment.

### Does OB ToolBox require an internet connection?

The provided data does not specify offline functionality. However, as a reference and calculator tool, it is likely designed to function without a constant internet connection for core features.

## Version history (last 5 releases)

### 1.5.6 — 2026-06-18

Improved look and results section for several calculators.

### 1.5.5 — 2026-02-09

Bug fixes, and better memory management.

### 1.5.4 — 2026-01-22

Fixed bugs and memory issues.

### 1.5.3 — 2026-01-08

Added section on External Cephalic Version Risks

### 1.5.2 — 2025-11-29

Bug Fix

## Apps similar to OB ToolBox

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Birth Log](https://appshunter.io/ios/app/birth-log/id1551877014) | 5.0 (1) | Free | Medical |
| [AnthroCalcFetal](https://appshunter.io/ios/app/anthrocalcfetal/id6741048463) | — | Free | Medical |
| [FASvet](https://appshunter.io/ios/app/fasvet/id6504021190) | — | Free | Medical |
| [AI Medical Scribe : Pallin](https://appshunter.io/ios/app/ai-medical-scribe-pallin/id6748059251) | — | Free | Medical |
| [MyTelePatient](https://appshunter.io/ios/app/mytelepatient/id1384819715) | — | Free | Medical |
| [Radiology - Aortic Imaging](https://appshunter.io/ios/app/radiology-aortic-imaging/id1090384392) | — | $19.99 | Medical |

## More apps by Frederick Blair

- [Belli-Ai](https://appshunter.io/ios/app/belli-ai/id6602882641)
- [Lactracker](https://appshunter.io/ios/app/lactracker/id6736633532)
- [Yawa4u](https://appshunter.io/ios/app/yawa4u/id6756317218)

All apps by Frederick Blair: https://appshunter.io/developer/1565667368

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-20.*