# CALIPER App vs RM Rx Resource for Midwives

The clearest difference is update cadence: RM Rx Resource for Midwives at every 8 months against CALIPER App's every 16 months. 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.

CALIPER App ships an update every 16 months, RM Rx Resource for Midwives every 8 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | CALIPER App | RM Rx Resource for Midwives |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/caliper-app/id849920476/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 8 months** |
| Monetization | Free | — |
| Size | 26 MB | 22 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [The Hospital for Sick Children](https://appshunter.io/developer/444728983) | [Association of Ontario Midwives](https://appshunter.io/developer/575658305) |

## What reviewers say

### CALIPER App

[App page](https://appshunter.io/ios/app/caliper-app/id849920476)

This app helps healthcare professionals and parents compare a child's lab test results against a comprehensive, up-to-date database of normal values. It simplifies the assessment of pediatric laboratory data, aiding in the identification of potential health concerns and treatment adjustments.

**Highlights:** Pediatric lab test comparison, Up-to-date reference value database, Supports over 100 routine tests, User-friendly interface, Portable on-the-go tool, Validated and published data

**In-app purchases:** none


### RM Rx Resource for Midwives

[App page](https://appshunter.io/ios/app/rm-rx-resource-for-midwives/id1193384376)

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

**In-app purchases:** none


## Frequently asked questions

### Is CALIPER App free?

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

### Is RM Rx Resource for Midwives free?

RM Rx Resource for Midwives is free to download, with no in-app purchases.

### Do CALIPER App or RM Rx Resource for Midwives have ads?

Neither CALIPER App nor RM Rx Resource for Midwives shows ads.

### Which is updated more often, CALIPER App or RM Rx Resource for Midwives?

CALIPER App ships an update every 16 months, and RM Rx Resource for Midwives every 8 months. Most recently, CALIPER App was updated on October 24, 2026 and RM Rx Resource for Midwives on October 15, 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.*