# Almanac Chat vs DiagnoseThis

The clearest difference is in-app purchases: DiagnoseThis at none against Almanac Chat's 6. DiagnoseThis also leads on iOS requirement (16.4 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Almanac Chat sells 6 in-app purchases, starting at $9.99 per month. DiagnoseThis asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Almanac Chat | DiagnoseThis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/almanac-chat/id6741955096/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | Free with in-app purchases | — |
| Size | 135 MB | 31 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Almanac Health, Inc.](https://appshunter.io/developer/1796313787) | [Core DT Solutions, LLC](https://appshunter.io/developer/6774581289) |

## What reviewers say

### Almanac Chat

[App page](https://appshunter.io/ios/app/almanac-chat/id6741955096)

This app provides healthcare professionals with evidence-based medical answers sourced from peer-reviewed literature. It offers access to over 1 million medical topics across 150 specialties, helping users stay updated on the latest advancements and treatment approaches.

**Highlights:** Evidence-based medical answers, Sourced and cited responses, Over 1 million medical topics, 150+ medical specialties, Research conditions and treatments, Stay updated on medical advances

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Almanac Plus | $9.99 | per month |
| Almanac Pro | $19.99 | per month |
| Almanac Pro | $39.99 | per month |
| Almanac Max | $199.99 | per month |
| Almanac Pro Yearly | $389.99 | per year |
| Almanac Extended Max | $399.99 | per month |


### DiagnoseThis

[App page](https://appshunter.io/ios/app/diagnosethis/id6774581287)

**In-app purchases:** none


## Frequently asked questions

### Is Almanac Chat free?

Almanac Chat is free to download, with in-app purchases available.

### Is DiagnoseThis free?

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

### Do Almanac Chat or DiagnoseThis have ads?

Neither Almanac Chat nor DiagnoseThis shows ads.

### Which is updated more often, Almanac Chat or DiagnoseThis?

Almanac Chat ships an update every 5 days, and DiagnoseThis every 5 days. Most recently, Almanac Chat was updated on October 24, 2026 and DiagnoseThis on October 24, 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.*