# CALIPER App vs Virtual Hallway

CALIPER App and Virtual Hallway both sit at 5.0 stars, but that hides the real split: 100% of CALIPER App's written reviews are positive against 33% of Virtual Hallway's. CALIPER App also leads on monetization model (free vs ad-supported) and iOS requirement (13.0 vs 15.0). Virtual Hallway's advantage is update cadence (weekly vs every 16 months). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for CALIPER App against 5.0 for Virtual Hallway. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 100% of CALIPER App's written reviews are positive against 33% of Virtual Hallway's.

CALIPER App ships an update every 16 months, Virtual Hallway weekly. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | CALIPER App | Virtual Hallway |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/caliper-app/id849920476/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/virtual-hallway/id6451244020/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 26 MB | 76 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [The Hospital for Sick Children](https://appshunter.io/developer/444728983) | [Virtual Hallway](https://appshunter.io/developer/1697287149) |

## 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


### Virtual Hallway

[App page](https://appshunter.io/ios/app/virtual-hallway/id6451244020)

Connect with medical specialists for peer-to-peer case discussions and access accredited medical education. Features secure call masking to protect your privacy while ensuring higher pick-up rates during consultations.

**Highlights:** Secure peer consults, Accredited medical education, Live and on-demand lectures, Call shielding/masking, Documentation and reimbursement

**In-app purchases:** none


## Frequently asked questions

### Is CALIPER App free?

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

### Is Virtual Hallway free?

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

### Which has better reviews, CALIPER App or Virtual Hallway?

CALIPER App and Virtual Hallway are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do CALIPER App or Virtual Hallway have ads?

Neither CALIPER App nor Virtual Hallway shows ads.

### Which is updated more often, CALIPER App or Virtual Hallway?

CALIPER App ships an update every 16 months, and Virtual Hallway weekly. Most recently, CALIPER App was updated on September 10, 2026 and Virtual Hallway on September 14, 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.*