# LactRx vs OK BF

The clearest difference is update cadence: LactRx at fortnightly against OK BF's every 6 weeks. LactRx also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

LactRx ships an update fortnightly, OK BF every 6 weeks. The most recent releases landed on June 1, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | LactRx | OK BF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/lactrx/id6443953070/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | Free | — |
| Size | 33 MB | 17 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ORGANIZATION OF TERATOLOGY INFORMATION SPECIALISTS, NFP](https://appshunter.io/developer/1133928797) | [Oklahoma Breastfeeding Resource Centre](https://appshunter.io/developer/1889111398) |

## What reviewers say

### LactRx

[App page](https://appshunter.io/ios/app/lactrx/id6443953070)

This app offers access to a comprehensive database of information regarding medications, vaccines, and other drugs during breastfeeding. It is intended to supplement professional medical advice, not replace it. Consult your healthcare provider for personalized breastfeeding guidance.

**Highlights:** LactMed database access, Medication information, Vaccine information, Drug of abuse information, Breastfeeding guidance

**Features:** macOS Compatibility

**In-app purchases:** none


### OK BF

[App page](https://appshunter.io/ios/app/ok-bf/id6761359552)

**In-app purchases:** none


## Frequently asked questions

### Is LactRx free?

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

### Is OK BF free?

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

### Do LactRx or OK BF have ads?

Neither LactRx nor OK BF shows ads.

### Which is updated more often, LactRx or OK BF?

LactRx ships an update fortnightly, and OK BF every 6 weeks. Most recently, LactRx was updated on June 1, 2026 and OK BF on September 11, 2026.

---

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