# OB Wheel vs IGCalcPT

The clearest difference is in-app purchases: IGCalcPT at none against OB Wheel's 2. OB Wheel's advantage is update cadence (every 4 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OB Wheel sells 2 one-off in-app purchases. IGCalcPT asks for nothing beyond the download.

OB Wheel ships an update every 4 days, IGCalcPT every 2 months. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | OB Wheel | IGCalcPT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (10 ratings)](https://appshunter.io/ios/app/ob-wheel/id6473123188/reviews)** | — |
| Number of ratings | **10** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Monetization | Free | — |
| Size | 28 MB | 31 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Berkay Gurcesme](https://appshunter.io/developer/1618081315) | [OBGYNART - OBSTETRICIA, GINECOLOGIA E MEDICINA DA REPRODUCAO, LDA](https://appshunter.io/developer/1832196791) |

## What reviewers say

### OB Wheel

[App page](https://appshunter.io/ios/app/ob-wheel/id6473123188)

This app assists expectant mothers and healthcare professionals in tracking pregnancy with accurate due date calculations and weekly fetal development updates. It offers customizable features, health tips, and tools for clinicians to support patient care throughout the journey to delivery.

**Highlights:** Accurate due date calculation, Weekly fetal development tracker, Customizable reminders and tracking, Health tips and resources, Tools for healthcare professionals, Symptom and feeling logging

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ob Wheel lifetime ad-free | $3.99 | one-time |
| Unlimited Ad-free Ob wheel | $9.99 | one-time |


### IGCalcPT

[App page](https://appshunter.io/ios/app/igcalcpt/id6749804503)

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

**In-app purchases:** none


## Frequently asked questions

### Is OB Wheel free?

OB Wheel is free to download, with in-app purchases available.

### Is IGCalcPT free?

IGCalcPT is free to download, with no in-app purchases.

### Do OB Wheel or IGCalcPT have ads?

Neither OB Wheel nor IGCalcPT shows ads.

### Which is updated more often, OB Wheel or IGCalcPT?

OB Wheel ships an update every 4 days, and IGCalcPT every 2 months. Most recently, OB Wheel was updated on October 22, 2026 and IGCalcPT on October 20, 2026.

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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.*