# Blood Test Guide vs Guide to Diagnostic Tests

The clearest difference is review sentiment: Blood Test Guide at 71% against Guide to Diagnostic Tests's 0%. Blood Test Guide also leads on update cadence (every 9 days vs every 9 months) and iOS requirement (9.0 vs 15.0). Guide to Diagnostic Tests's advantage is rating (4.5 vs 3.5). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Blood Test Guide sells 1 one-off in-app purchase and Guide to Diagnostic Tests sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Guide to Diagnostic Tests holds the better App Store score, 4.5 against 3.5. Both are backed by a comparable volume of ratings — 32 and 36 respectively. Written reviews complicate that: 71% of Blood Test Guide's written reviews are positive against 0% of Guide to Diagnostic Tests's, so the app with the better star average is not the one people write more warmly about.

Blood Test Guide ships an update every 9 days, Guide to Diagnostic Tests every 9 months. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Blood Test Guide | Guide to Diagnostic Tests |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (32 ratings)](https://appshunter.io/ios/app/blood-test-guide/id491681195/reviews) | **[4.5 (36 ratings)](https://appshunter.io/ios/app/guide-to-diagnostic-tests/id910130424/reviews)** |
| Number of ratings | 32 | **36** |
| Positive reviews | **71.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 9 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 66 MB | 10 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [O Clock Software Pvt Ltd](https://appshunter.io/developer/453723763) | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) |

## What reviewers say

### Blood Test Guide

[App page](https://appshunter.io/ios/app/blood-test-guide/id491681195)

Understand your blood test results with this comprehensive guide. It explains various blood test elements, their normal ranges, and potential causes for deviations. The app also helps locate nearby medical facilities and provides directions.

**Highlights:** Understand blood test results, Reference ranges for medical tests, Information on blood test elements, Causes of increase/decrease in elements, Locate nearby blood test labs, Find nearby hospitals and blood banks, Get directions to medical facilities

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium App | $0.99 | one-time |

**What reviewers like**

- 👍 Great reference tool
- 👍 Informative app
- 👍 Helpful for understanding results
- 👍 User-friendly
- 👍 Good for studying

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Not working on iPad landscape
- 🐛 Spelling and grammar errors
- 🐛 Factual errors in ranges
- 🐛 Ads cover text

**Reported bugs**

- Doesn't open
- Crashes
- Updated version doesn't show half the information
- Freezes and closes
- Introductory paragraphs at bottom of screen don't scroll

**Requested features**

- Ability to upload reports
- Track records over time
- Choice of notification format (text vs. video)
- Chemical symbol next to name
- Enter results and review in PDF format


### Guide to Diagnostic Tests

[App page](https://appshunter.io/ios/app/guide-to-diagnostic-tests/id910130424)

Access evidence-based information on over 450 diagnostic tests, including lab work, imaging, and therapeutic monitoring. This resource helps healthcare professionals quickly find answers to common questions about test selection, interpretation, and patient preparation.

**Highlights:** 450+ diagnostic tests, Evidence-based recommendations, Algorithms, tables, and charts, PubMed links, Custom notes and highlighting, Full-text search, Favorites for bookmarking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pocket Guide to Diagnostic Tests | $54.99 | one-time |


## Frequently asked questions

### Is Blood Test Guide free?

Blood Test Guide is free to download, with in-app purchases available.

### Is Guide to Diagnostic Tests free?

Guide to Diagnostic Tests is free to download, with in-app purchases available.

### Which has better reviews, Blood Test Guide or Guide to Diagnostic Tests?

Guide to Diagnostic Tests is rated higher. Blood Test Guide averages 3.5 out of 5 from 32 ratings, while Guide to Diagnostic Tests averages 4.5 from 36 ratings.

### Do Blood Test Guide or Guide to Diagnostic Tests have ads?

Neither Blood Test Guide nor Guide to Diagnostic Tests shows ads.

### Which is updated more often, Blood Test Guide or Guide to Diagnostic Tests?

Blood Test Guide ships an update every 9 days, and Guide to Diagnostic Tests every 9 months. Most recently, Blood Test Guide was updated on November 1, 2026 and Guide to Diagnostic Tests on November 8, 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.*