# Obstetric Tools vs OB Wheel+

The clearest difference is in-app purchases: OB Wheel+ at none against Obstetric Tools's 4. OB Wheel+ also leads on rating (5.0 vs 4.8). Obstetric Tools's advantage is ratings volume (4 vs 1) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Obstetric Tools sells 4 in-app purchases, starting at $1.99 per month. OB Wheel+ asks for nothing beyond the download.

OB Wheel+ holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

## The numbers

| Metric | Obstetric Tools | OB Wheel+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (4 ratings)](https://appshunter.io/ios/app/obstetric-tools-ob-calculator/id6742823689/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ob-wheel-plus/id6757197344/reviews)** |
| Number of ratings | **4** | 1 |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 69 MB | 11 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Pedro Iniesta](https://appshunter.io/developer/1645524353) | [Andrew Yu](https://appshunter.io/developer/328693314) |

## What reviewers say

### Obstetric Tools

[App page](https://appshunter.io/ios/app/obstetric-tools-ob-calculator/id6742823689)

This clinical toolkit provides obstetricians and midwives with a precise, fast, and comprehensive pregnancy wheel and calculator. It offers evidence-based results for optimizing patient care, even offline, and includes various essential medical tests and scales.

**Highlights:** Advanced Gestogram (Pregnancy Wheel), Estimated Due Date (EDD) & Gestational Age (GA) calculation, Estimated Fetal Weight (EFW) calculator, Maternal BMI & Weight Gain tracker, Bishop Score, Apgar Score, and other clinical scales, 100% Offline Functionality, Evidence-based clinical information

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Obstetric Tools Pro Monthly | $3.99 | per month |
| Premium Annual | $4.99 | per year |
| Obstetric Tools Pro Annual | $24.99 | per year |


### OB Wheel+

[App page](https://appshunter.io/ios/app/ob-wheel-plus/id6757197344)

This medical app offers precise pregnancy calculations for healthcare professionals and expectant parents. It features multiple calculation modes, projected gestational age, and a timeline of key clinical milestones and screenings. Users can also filter milestones by trimester and compare fetal growth with relatable size comparisons.

**Highlights:** Multiple calculation modes (LMP, EDD, IVF, GA), Projected gestational age calculation, Clinical milestone timeline, Trimester filtering, Fetal size comparisons

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Obstetric Tools free?

Obstetric Tools is free to download, with in-app purchases available.

### Is OB Wheel+ free?

OB Wheel+ is free to download, with no in-app purchases.

### Which has better reviews, Obstetric Tools or OB Wheel+?

OB Wheel+ is rated higher. Obstetric Tools averages 4.8 out of 5 from 4 ratings, while OB Wheel+ averages 5.0 from 1 ratings.

### Do Obstetric Tools or OB Wheel+ have ads?

Both Obstetric Tools and OB Wheel+ show ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*