# Deep Evidence vs Oftbook

The clearest difference is iOS requirement: Deep Evidence at 13.0 against Oftbook's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Deep Evidence sells 2 in-app purchases, starting at $9.99 per month and Oftbook sells 2 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

Deep Evidence ships an update weekly, Oftbook every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Deep Evidence | Oftbook |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Free with in-app purchases | — |
| Size | 76 MB | 28 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [AnestCopilot LTDA](https://appshunter.io/developer/1774809695) | [OFTBOOK OFTALMOLOGIA DIGITAL LTDA](https://appshunter.io/developer/1616321191) |

## What reviewers say

### Deep Evidence

[App page](https://appshunter.io/ios/app/deep-evidence-clinical-ai/id6745051674)

Get quick, cited answers from clinical research for healthcare professionals. Analyze papers, chat with articles, and stay updated on new studies. Save time on manual evidence searches.

**Highlights:** Concise, referenced clinical answers, Deep analysis of research papers, Smart alerts for new studies, Chat with uploaded articles, Integrated search and analysis, Review archive for saved searches

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deep Evidence PRO \| Monthly | $9.99 | per month |
| Deep Evidence \| PRO - Annual | $99.90 | per year |


### Oftbook

[App page](https://appshunter.io/ios/app/oftbook/id6759061221)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oftbook premium mensal | $19.99 | per month |
| Oftbook premium anual | $149.99 | per year |


## Frequently asked questions

### Is Deep Evidence free?

Deep Evidence is free to download, with in-app purchases available.

### Is Oftbook free?

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

### Do Deep Evidence or Oftbook have ads?

Neither Deep Evidence nor Oftbook shows ads.

### Which is updated more often, Deep Evidence or Oftbook?

Deep Evidence ships an update weekly, and Oftbook every 10 days. Most recently, Deep Evidence was updated on October 30, 2026 and Oftbook on October 31, 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.*