# rsLog vs Obstetric Tools

The clearest difference is in-app purchases: rsLog at none against Obstetric Tools's 4. rsLog also leads on ads (none vs shown). Obstetric Tools's advantage is update cadence (every 3 weeks vs every 2 months). On price, device support and iOS requirement there is nothing between them.

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

rsLog ships an update every 2 months, Obstetric Tools every 3 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | rsLog | Obstetric Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/obstetric-tools-ob-calculator/id6742823689/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 31 MB | 69 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Emmanuel Kuffour](https://appshunter.io/developer/1675240924) | [Pedro Iniesta](https://appshunter.io/developer/1645524353) |

## What reviewers say

### rsLog

[App page](https://appshunter.io/ios/app/rslog/id6446381025)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is rsLog free?

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

### Is Obstetric Tools free?

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

### Do rsLog or Obstetric Tools have ads?

Obstetric Tools shows ads; rsLog does not.

### Which is updated more often, rsLog or Obstetric Tools?

rsLog ships an update every 2 months, and Obstetric Tools every 3 weeks. Most recently, rsLog was updated on October 27, 2026 and Obstetric Tools on October 28, 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.*