# Lab Notes & Diagnostic Tests vs Bydon

The clearest difference is in-app purchases: Bydon at none against Lab Notes & Diagnostic Tests's 2. Bydon also leads on ads (none vs shown) and update cadence (every 11 days vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Lab Notes & Diagnostic Tests sells 2 in-app purchases, starting at $29.99 per year. Bydon asks for nothing beyond the download.

Lab Notes & Diagnostic Tests ships an update every 4 months, Bydon every 11 days. The most recent releases landed on September 28, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Lab Notes & Diagnostic Tests | Bydon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/lab-notes-and-diagnostic-tests/id1140857423/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 11 days** |
| Monetization | Free with in-app purchases | — |
| Size | 46 MB | 71 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) | [UJUDEBUG](https://appshunter.io/developer/1324439012) |

## What reviewers say

### Lab Notes & Diagnostic Tests

[App page](https://appshunter.io/ios/app/lab-notes-and-diagnostic-tests/id1140857423)

This app serves as a portable reference for nurses, providing essential information on over 400 lab and diagnostic tests. It includes details on preparation, patient care, panic levels, and visual aids, with offline access after initial download.

**Highlights:** Covers 400+ lab and diagnostic tests, Includes radiography, imaging, and endoscopy, Identifies panic lab levels and nurse alerts, Features patient education guidelines, Offline access to content, SmartSearch technology for quick information retrieval

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lab Notes & Diagnostic Tests | $29.99 | per year |
| Lab Notes & Diagnostic Tests | $29.99 | one-time |


### Bydon

[App page](https://appshunter.io/ios/app/bydon/id6746718156)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lab Notes & Diagnostic Tests free?

Lab Notes & Diagnostic Tests is free to download, with in-app purchases available.

### Is Bydon free?

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

### Do Lab Notes & Diagnostic Tests or Bydon have ads?

Lab Notes & Diagnostic Tests shows ads; Bydon does not.

### Which is updated more often, Lab Notes & Diagnostic Tests or Bydon?

Lab Notes & Diagnostic Tests ships an update every 4 months, and Bydon every 11 days. Most recently, Lab Notes & Diagnostic Tests was updated on September 28, 2026 and Bydon on October 9, 2026.

---

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