# Pain Squad vs OpenEvidence

The clearest difference is review sentiment: OpenEvidence at 81% against Pain Squad's 50%. OpenEvidence also leads on update cadence (weekly vs every 29 months) and chart position (#42 vs unranked). Pain Squad's advantage is iOS requirement (9.3 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Pain Squad ships an update every 29 months, OpenEvidence weekly. The most recent releases landed on November 1, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Pain Squad | OpenEvidence |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (12K ratings)](https://appshunter.io/ios/app/openevidence/id6612007783/reviews)** |
| Number of ratings | — | **12K** |
| Positive reviews | 50.0% of reviews | **81.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Weekly** |
| Monetization | Free | Free |
| Best chart rank | — | **#42** |
| Size | 50 MB | 96 MB |
| Requires iOS | **9.3** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [The Hospital for Sick Children](https://appshunter.io/developer/444728983) | [OpenEvidence Inc.](https://appshunter.io/developer/1761260627) |

## What reviewers say

### Pain Squad

[App page](https://appshunter.io/ios/app/pain-squad/id929781246)

This app is an electronic pain diary designed for children with cancer, aged 8-18, to track their pain. It gamifies the process of reporting pain intensity, location, and relief methods, allowing users to advance in ranks and share reports with healthcare providers.

**Highlights:** Electronic pain diary, Gamified experience, Pain tracking and reporting, Rank advancement system, Printable pain reports, Reminders for reports

**In-app purchases:** none


### OpenEvidence

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

**Currently charting:** #42 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 strength of evidence assessments.

**Highlights:** Evidence-based clinical answers, Cited claims with sources, Strength of evidence assessment (EvidenceGrade™), Access to 35 million+ peer-reviewed papers, CME and MOC credit earning, HIPAA compliant platform, Ambient documentation and secure calling

**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 Pain Squad free?

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

### Is OpenEvidence free?

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

### Do Pain Squad or OpenEvidence have ads?

Neither Pain Squad nor OpenEvidence shows ads.

### Which is updated more often, Pain Squad or OpenEvidence?

Pain Squad ships an update every 29 months, and OpenEvidence weekly. Most recently, Pain Squad was updated on November 1, 2026 and OpenEvidence on November 12, 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.*