# GAPP Guidelines vs OpenEvidence

The clearest difference is update cadence: OpenEvidence at weekly against GAPP Guidelines's every 5 months. OpenEvidence also leads on chart position (#34 vs unranked). GAPP Guidelines's advantage is iOS requirement (9.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

GAPP Guidelines ships an update every 5 months, OpenEvidence weekly. The most recent releases landed on October 27, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | GAPP Guidelines | OpenEvidence |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (12K ratings)](https://appshunter.io/ios/app/openevidence/id6612007783/reviews)** |
| Number of ratings | — | **12K** |
| Positive reviews | — | 81.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | — | Free |
| Best chart rank | — | **#34** |
| Size | 45 MB | 96 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Medical EGuides](https://appshunter.io/developer/1133990851) | [OpenEvidence Inc.](https://appshunter.io/developer/1761260627) |

## What reviewers say

### GAPP Guidelines

[App page](https://appshunter.io/ios/app/gapp-guidelines/id659325458)

**Features:** macOS Compatibility

**In-app purchases:** none


### OpenEvidence

[App page](https://appshunter.io/ios/app/openevidence/id6612007783)

**Currently charting:** #34 Top Free · Medical (US App Store)

This AI-powered medical search engine provides verified healthcare professionals with evidence-based answers to clinical questions. It sources information from millions of peer-reviewed papers and leading medical journals, offering cited claims and CME credits.

**Highlights:** Evidence-based clinical answers, Cited sources and references, Access to 35 million+ papers, CME and MOC credits, HIPAA compliant, Ambient documentation and secure calls

**Features:** Siri integration

**In-app purchases:** none

**What reviewers like**

- 🚀 Accurate and concise answers
- 💡 Provides references and sources
- 👍 Helpful for clinical practice
- 🚀 Efficient search and retrieval
- 👍 Invaluable quick reference tool

**What reviewers complain about**

- 🐛 App not working in latest update
- ⚠️ Requires specific prompts for complete information

**Reported bugs**

- App not working in latest update

**Requested features**

- Availability on MacBook
- Integration with clinical workflows and EMRs


## Frequently asked questions

### Is GAPP Guidelines free?

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

### Is OpenEvidence free?

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

### Do GAPP Guidelines or OpenEvidence have ads?

Neither GAPP Guidelines nor OpenEvidence shows ads.

### Which is updated more often, GAPP Guidelines or OpenEvidence?

GAPP Guidelines ships an update every 5 months, and OpenEvidence weekly. Most recently, GAPP Guidelines was updated on October 27, 2026 and OpenEvidence on November 9, 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.*